MSSQL and PostgreSQL script examples
Level: intermediate
Example 1 (views)
Example
Example of an SQL script that creates a view and triggers to add, modify, and delete records from the target table.
-- View and triggers that let you modify the target table
-- MSSQL
IF EXISTS (SELECT * FROM sys.views WHERE object_id = OBJECT_ID(N'[dbo].[VwSysAdminUnit]'))
DROP VIEW [dbo].[VwSysAdminUnit]
GO
CREATE VIEW [dbo].[VwSysAdminUnit]
AS
SELECT [SysAdminUnit].[Id]
,[SysAdminUnit].[CreatedOn]
,[SysAdminUnit].[CreatedById]
,[SysAdminUnit].[ModifiedOn]
,[SysAdminUnit].[ModifiedById]
,[SysAdminUnit].[Name]
,[SysAdminUnit].[Description]
,[SysAdminUnit].[ParentRoleId]
,[SysAdminUnit].[ContactId]
,[SysAdminUnit].[IsDirectoryEntry]
,[TimeZone].[Id] AS [TimeZoneId]
,[SysAdminUnit].[UserPassword]
,[SysAdminUnitType].[Id] AS [SysAdminUnitTypeId]
,[SysAdminUnit].[AccountId]
,[SysAdminUnit].[Active]
,[SysAdminUnit].[LoggedIn]
,[SysAdminUnit].[SynchronizeWithLDAP]
,[SysAdminUnit].[LDAPEntry]
,[SysAdminUnit].[LDAPEntryId]
,[SysAdminUnit].[LDAPEntryDN]
,[SysAdminUnit].[SysCultureId]
,[SysAdminUnit].[ProcessListeners]
,[SysAdminUnit].[PasswordExpireDate]
,[SysAdminUnit].[HomePageId]
,[SysAdminUnit].[ConnectionType]
,[ConnectionType].[Id] AS [UserConnectionTypeId]
,[SysAdminUnit].[ForceChangePassword]
,[SysAdminUnit].[DateTimeFormatId]
,[SysAdminUnit].[Id] as [SysAdminUnitId]
,[SysAdminUnit].[SessionTimeout] as [SessionTimeout]
FROM [SysAdminUnit]
INNER JOIN [SysAdminUnitType] ON [SysAdminUnitType].[Value] = [SysAdminUnit].[SysAdminUnitTypeValue]
LEFT JOIN [ConnectionType] AS [ConnectionType] ON [ConnectionType].[Value] = [SysAdminUnit].[ConnectionType]
LEFT JOIN [TimeZone] AS [TimeZone] ON [TimeZone].[Code] = [SysAdminUnit].[TimeZoneId]
GO
CREATE TRIGGER [dbo].[ITR_VwSysAdminUnit_I]
ON [dbo].[VwSysAdminUnit]
INSTEAD OF INSERT
AS
BEGIN
SET NOCOUNT ON;
INSERT INTO [SysAdminUnit](
[Id]
,[CreatedOn]
,[CreatedById]
,[ModifiedOn]
,[ModifiedById]
,[Name]
,[Description]
,[ParentRoleId]
,[ContactId]
,[IsDirectoryEntry]
,[TimeZoneId]
,[UserPassword]
,[SysAdminUnitTypeValue]
,[AccountId]
,[Active]
,[LoggedIn]
,[SynchronizeWithLDAP]
,[LDAPEntry]
,[LDAPEntryId]
,[LDAPEntryDN]
,[SysCultureId]
,[ProcessListeners]
,[PasswordExpireDate]
,[HomePageId]
,[ConnectionType]
,[ForceChangePassword]
,[DateTimeFormatId]
,[SessionTimeout])
SELECT [Id]
,[CreatedOn]
,[CreatedById]
,[ModifiedOn]
,[ModifiedById]
,[Name]
,[Description]
,[ParentRoleId]
,[ContactId]
,[IsDirectoryEntry]
,(SELECT COALESCE(
(SELECT [TimeZone].[Code] FROM [TimeZone]
WHERE [TimeZone].[Id] = [INSERTED].[TimeZoneId]), ''))
,[UserPassword]
,ISNULL((SELECT [SysAdminUnitType].[Value] FROM [SysAdminUnitType]
WHERE [SysAdminUnitType].[Id] = [INSERTED].[SysAdminUnitTypeId]), 4)
,[AccountId]
,[Active]
,ISNULL([LoggedIn], 0)
,[SynchronizeWithLDAP]
,[LDAPEntry]
,[LDAPEntryId]
,[LDAPEntryDN]
,[SysCultureId]
,[ProcessListeners]
,[PasswordExpireDate]
,[HomePageId]
,COALESCE([INSERTED].[ConnectionType],
(SELECT [ConnectionType].[Value] FROM [ConnectionType]
WHERE [ConnectionType].[Id] = [INSERTED].[UserConnectionTypeId]), 0)
,ISNULL([ForceChangePassword], 0)
,[DateTimeFormatId]
,[SessionTimeout]
FROM [INSERTED]
END
GO
CREATE TRIGGER [dbo].[ITR_VwSysAdminUnit_U]
ON [dbo].[VwSysAdminUnit]
INSTEAD OF UPDATE
AS
BEGIN
SET NOCOUNT ON;
UPDATE [SysAdminUnit]
SET [SysAdminUnit].[CreatedOn] = [INSERTED].[CreatedOn]
,[SysAdminUnit].[CreatedById] = [INSERTED].[CreatedById]
,[SysAdminUnit].[ModifiedOn] =[INSERTED].[ModifiedOn]
,[SysAdminUnit].[ModifiedById] = [INSERTED].[ModifiedById]
,[SysAdminUnit].[Name] = [INSERTED].[Name]
,[SysAdminUnit].[Description] = [INSERTED].[Description]
,[SysAdminUnit].[ParentRoleId] = [INSERTED].[ParentRoleId]
,[SysAdminUnit].[ContactId] = [INSERTED].[ContactId]
,[SysAdminUnit].[IsDirectoryEntry] = [INSERTED].[IsDirectoryEntry]
,[SysAdminUnit].[TimeZoneId] =
(SELECT COALESCE(
(SELECT [TimeZone].[Code] FROM [TimeZone]
WHERE [TimeZone].[Id] = [INSERTED].[TimeZoneId]), ''))
,[SysAdminUnit].[UserPassword] = [INSERTED].[UserPassword]
,[SysAdminUnit].[SysAdminUnitTypeValue] =
(SELECT [SysAdminUnitType].[Value] FROM [SysAdminUnitType]
WHERE [SysAdminUnitType].[Id] = [INSERTED].[SysAdminUnitTypeId])
,[SysAdminUnit].[AccountId] = [INSERTED].[AccountId]
,[SysAdminUnit].[Active] = [INSERTED].[Active]
,[SysAdminUnit].[LoggedIn] = [INSERTED].[LoggedIn]
,[SysAdminUnit].[SynchronizeWithLDAP] = [INSERTED].[SynchronizeWithLDAP]
,[SysAdminUnit].[LDAPEntry] = [INSERTED].[LDAPEntry]
,[SysAdminUnit].[LDAPEntryId] = [INSERTED].[LDAPEntryId]
,[SysAdminUnit].[LDAPEntryDN] = [INSERTED].[LDAPEntryDN]
,[SysAdminUnit].[SysCultureId] = [INSERTED].[SysCultureId]
,[SysAdminUnit].[ProcessListeners] = [INSERTED].[ProcessListeners]
,[SysAdminUnit].[PasswordExpireDate] = [INSERTED].[PasswordExpireDate]
,[SysAdminUnit].[HomePageId] = [INSERTED].[HomePageId]
,[SysAdminUnit].[ConnectionType] = COALESCE([INSERTED].[ConnectionType],
(SELECT [ConnectionType].[Value] FROM [ConnectionType]
WHERE [ConnectionType].[Id] = [INSERTED].[UserConnectionTypeId]), 0)
,[SysAdminUnit].[ForceChangePassword] = [INSERTED].[ForceChangePassword]
,[SysAdminUnit].[DateTimeFormatId] = [INSERTED].[DateTimeFormatId]
,[SysAdminUnit].[SessionTimeout] = [INSERTED].[SessionTimeout]
FROM [SysAdminUnit]
INNER JOIN [INSERTED] ON [SysAdminUnit].[Id] = [INSERTED].[Id]
END
GO
CREATE TRIGGER [dbo].[ITR_VwSysAdminUnit_D]
ON [dbo].[VwSysAdminUnit]
INSTEAD OF DELETE
AS
BEGIN
SET NOCOUNT ON;
DELETE FROM [SysAdminUnit]
WHERE EXISTS(SELECT * FROM [DELETED] WHERE [SysAdminUnit].[Id] = [DELETED].[Id])
END
GO
-- View and triggers that let you modify the target table
-- PostgreSQL
DROP FUNCTION IF EXISTS "public"."ITR_VwSysLookup_IUD_Func" CASCADE;
DROP VIEW IF EXISTS "public"."VwSysLookup";
CREATE VIEW "public"."VwSysLookup" AS
SELECT "SysLookup"."Id"
,"SysLookup"."CreatedOn"
,"SysLookup"."CreatedById"
,"SysLookup"."ModifiedOn"
,"SysLookup"."ModifiedById"
,"SysLookup"."Name"
,"SysLookup"."Description"
,"SysLookup"."SysFolderId"
,"SysLookup"."SysEntitySchemaUId"
,"SysLookup"."SysGridPageSchemaUId"
,"SysLookup"."SysEditPageSchemaUId"
,"VwSysSchemaInfo"."SysWorkspaceId"
,"SysLookup"."ProcessListeners"
,"SysLookup"."IsSystem"
,"SysLookup"."IsSimple"
FROM "public"."SysLookup"
INNER JOIN "public"."VwSysSchemaInfo" ON "SysLookup"."SysEntitySchemaUId" = "VwSysSchemaInfo"."UId";
CREATE FUNCTION "public"."ITR_VwSysLookup_IUD_Func"() RETURNS TRIGGER AS $$
BEGIN
IF TG_OP = 'INSERT' THEN
INSERT INTO "public"."SysLookup"(
"Id"
,"CreatedOn"
,"CreatedById"
,"ModifiedOn"
,"ModifiedById"
,"Name"
,"Description"
,"SysFolderId"
,"SysEntitySchemaUId"
,"SysGridPageSchemaUId"
,"SysEditPageSchemaUId"
,"ProcessListeners"
,"IsSystem"
,"IsSimple")
SELECT NEW."Id"
,NEW."CreatedOn"
,NEW."CreatedById"
,NEW."ModifiedOn"
,NEW."ModifiedById"
,NEW."Name"
,NEW."Description"
,NEW."SysFolderId"
,NEW."SysEntitySchemaUId"
,NEW."SysGridPageSchemaUId"
,NEW."SysEditPageSchemaUId"
,NEW."ProcessListeners"
,NEW."IsSystem"
,NEW."IsSimple";
RETURN NEW;
ELSIF TG_OP = 'UPDATE' THEN
UPDATE "public"."SysLookup"
SET "CreatedOn" = NEW."CreatedOn"
,"CreatedById" = NEW."CreatedById"
,"ModifiedOn" = NEW."ModifiedOn"
,"ModifiedById" = NEW."ModifiedById"
,"Name" = NEW."Name"
,"Description" = NEW."Description"
,"SysFolderId" = NEW."SysFolderId"
,"SysEntitySchemaUId" = NEW."SysEntitySchemaUId"
,"SysGridPageSchemaUId" = NEW."SysGridPageSchemaUId"
,"SysEditPageSchemaUId" = NEW."SysEditPageSchemaUId"
,"ProcessListeners" = NEW."ProcessListeners"
,"IsSystem" = NEW."IsSystem"
,"IsSimple" = NEW."IsSimple"
WHERE "SysLookup"."Id" = NEW."Id";
RETURN NEW;
ELSIF TG_OP = 'DELETE' THEN
DELETE FROM "public"."SysLookup" WHERE OLD."Id" = "SysLookup"."Id";
RETURN OLD;
END IF;
RETURN NEW;
END;
$$ LANGUAGE plpgsql;
CREATE TRIGGER "ITR_VwSysLookup_IUD"
INSTEAD OF INSERT OR UPDATE OR DELETE ON "public"."VwSysLookup"
FOR EACH ROW EXECUTE PROCEDURE "public"."ITR_VwSysLookup_IUD_Func"();
Example 2 (views)
Example
Example of an SQL script that demonstrates how to use a RULE instead of the INSTEAD OF trigger in PostgreSQL.
-- Use the RULE instead of the INSTEAD OF trigger
-- MSSQL
IF EXISTS (SELECT * FROM sys.views WHERE object_id = OBJECT_ID(N'[dbo].[VwAdministrativeObjects]'))
DROP VIEW [dbo].[VwAdministrativeObjects]
GO
CREATE VIEW [dbo].[VwAdministrativeObjects]
AS
WITH
[SysSchemaAdministrationProperties] AS (
SELECT [AdministrationPropertiesAll].[Id] AS [SysSchemaId],
max([AdministrationPropertiesAll].[AdministratedByOperations]) AS [AdministratedByOperations],
max([AdministrationPropertiesAll].[AdministratedByColumns]) AS [AdministratedByColumns],
max([AdministrationPropertiesAll].[AdministratedByRecords]) AS [AdministratedByRecords],
max([AdministrationPropertiesAll].[IsTrackChangesInDB]) AS [IsTrackChangesInDB]
FROM (
SELECT [SysSchema].[Id],
(CASE WHEN EXISTS (
SELECT 1
FROM [SysSchemaProperty]
WHERE (([SysSchemaProperty].[SysSchemaId] = [SysSchema].[Id] AND [SysSchema].[ExtendParent] = 0)
OR [SysSchemaProperty].[SysSchemaId] = [DerivedSysSchema].[Id])
AND [SysSchemaProperty].[Name] = 'AdministratedByOperations'
AND [SysSchemaProperty].[Value] = 'True'
AND [SysSchemaProperty].[SysSchemaId] IS NOT NULL
)
THEN 1 ELSE 0 END) AS [AdministratedByOperations],
(CASE WHEN EXISTS (
SELECT 1
FROM [SysSchemaProperty]
WHERE (([SysSchemaProperty].[SysSchemaId] = [SysSchema].[Id] AND [SysSchema].[ExtendParent] = 0)
OR [SysSchemaProperty].[SysSchemaId] = [DerivedSysSchema].[Id])
AND [SysSchemaProperty].[Name] = 'AdministratedByColumns'
AND [SysSchemaProperty].[Value] = 'True'
AND [SysSchemaProperty].[SysSchemaId] IS NOT NULL
)
THEN 1 ELSE 0 END) AS [AdministratedByColumns],
(CASE WHEN EXISTS (
SELECT 1
FROM [SysSchemaProperty]
WHERE (([SysSchemaProperty].[SysSchemaId] = [SysSchema].[Id] AND [SysSchema].[ExtendParent] = 0)
OR [SysSchemaProperty].[SysSchemaId] = [DerivedSysSchema].[Id])
AND [SysSchemaProperty].[Name] = 'AdministratedByRecords'
AND [SysSchemaProperty].[Value] = 'True'
AND [SysSchemaProperty].[SysSchemaId] IS NOT NULL
)
THEN 1 ELSE 0 END) AS [AdministratedByRecords],
(CASE WHEN EXISTS (
SELECT 1
FROM [SysSchemaProperty]
WHERE (([SysSchemaProperty].[SysSchemaId] = [SysSchema].[Id] AND [SysSchema].[ExtendParent] = 0)
OR [SysSchemaProperty].[SysSchemaId] = [DerivedSysSchema].[Id])
AND [SysSchemaProperty].[Name] = 'IsTrackChangesInDB'
AND [SysSchemaProperty].[Value] = 'True'
AND [SysSchemaProperty].[SysSchemaId] IS NOT NULL
)
THEN 1 ELSE 0 END) AS [IsTrackChangesInDB]
FROM [SysSchema]
LEFT OUTER JOIN [SysSchema] AS [DerivedSysSchema] ON ([SysSchema].[Id] = [DerivedSysSchema].[ParentId] AND [DerivedSysSchema].[ExtendParent] = 1)
WHERE [SysSchema].[ManagerName] = 'EntitySchemaManager'
AND [SysSchema].[ExtendParent] = 0
) AS [AdministrationPropertiesAll]
GROUP BY [AdministrationPropertiesAll].[Id]
)
SELECT [BaseSchemas].[UId] AS [Id],
[BaseSchemas].[UId],
[BaseSchemas].[CreatedOn],
[BaseSchemas].[CreatedById],
[BaseSchemas].[ModifiedOn],
[BaseSchemas].[ModifiedById],
[BaseSchemas].[Name],
[VwSysSchemaExtending].[TopExtendingCaption] as Caption,
[BaseSchemas].[Description],
(CASE WHEN EXISTS (
SELECT 1
FROM [SysLookup]
WHERE [SysLookup].[SysEntitySchemaUId] = [BaseSchemas].[UId])
THEN 1 ELSE 0 END) AS [IsLookup],
(CASE WHEN EXISTS (
SELECT 1 FROM [SysModule]
INNER JOIN [SysModuleEntity] ON [SysModuleEntity].[Id] = [SysModule].[SysModuleEntityId]
WHERE [BaseSchemas].[UId] = [SysModuleEntity].[SysEntitySchemaUId])
THEN 1 ELSE 0 END) AS [IsModule],
[SysSchemaAdministrationProperties].[AdministratedByOperations],
[SysSchemaAdministrationProperties].[AdministratedByColumns],
[SysSchemaAdministrationProperties].[AdministratedByRecords],
[SysSchemaAdministrationProperties].[IsTrackChangesInDB],
[SysWorkspaceId],
[BaseSchemas].[ProcessListeners],
(CASE WHEN EXISTS (
SELECT 1
FROM [SysSSPEntitySchemaAccessList]
WHERE [SysSSPEntitySchemaAccessList].[EntitySchemaUId] = [BaseSchemas].[UId]
)
THEN 1 ELSE 0 END) AS [IsInSSPEntitySchemaAccessList]
FROM [SysSchema] as [BaseSchemas]
INNER JOIN [VwSysSchemaExtending] ON BaseSchemas.[Id] = [VwSysSchemaExtending].[BaseSchemaId]
INNER JOIN [SysPackage] on [BaseSchemas].[SysPackageId] = [SysPackage].[Id]
INNER JOIN [SysSchemaAdministrationProperties] ON [BaseSchemas].[Id] = [SysSchemaAdministrationProperties].[SysSchemaId]
GO
CREATE TRIGGER [dbo].[TRVwAdministrativeObjects_IU]
ON [dbo].[VwAdministrativeObjects]
INSTEAD OF UPDATE
AS
BEGIN
SET NOCOUNT ON;
RETURN
END
GO
-- Use the RULE instead of the INSTEAD OF trigger
-- PostgreSQL
DROP VIEW IF EXISTS public."VwAdministrativeObjects";
DROP RULE IF EXISTS RU_VwAdministrativeObjects ON "VwAdministrativeObjects";
CREATE VIEW public."VwAdministrativeObjects" AS
WITH SysSchemaAdministrationProperties AS (
SELECT AdministrationPropertiesAll.Id "SysSchemaId",
MAX(AdministrationPropertiesAll.AdministratedByOperations) "AdministratedByOperations",
MAX(AdministrationPropertiesAll.AdministratedByColumns) "AdministratedByColumns",
MAX(AdministrationPropertiesAll.AdministratedByRecords) "AdministratedByRecords",
MAX(AdministrationPropertiesAll.IsTrackChangesInDB) "IsTrackChangesInDB"
FROM (
SELECT ss."Id" Id
,(CASE WHEN EXISTS (
SELECT 1
FROM "SysSchemaProperty" ssp
WHERE ((ssp."SysSchemaId" = ss."Id" AND NOT ss."ExtendParent") OR ssp."SysSchemaId" = DerivedSysSchema."Id")
AND ssp."Name" = 'AdministratedByOperations'
AND ssp."Value" = 'True'
AND ssp."SysSchemaId" IS NOT NULL
) THEN 1 ELSE 0 END) AdministratedByOperations
,(CASE WHEN EXISTS (
SELECT 1
FROM "SysSchemaProperty" ssp
WHERE ((ssp."SysSchemaId" = ss."Id" AND NOT ss."ExtendParent") OR ssp."SysSchemaId" = DerivedSysSchema."Id")
AND ssp."Name" = 'AdministratedByColumns'
AND ssp."Value" = 'True'
AND ssp."SysSchemaId" IS NOT NULL
) THEN 1 ELSE 0 END) AdministratedByColumns
,(CASE WHEN EXISTS (
SELECT 1
FROM "SysSchemaProperty" ssp
WHERE ((ssp."SysSchemaId" = ss."Id" AND NOT ss."ExtendParent") OR ssp."SysSchemaId" = DerivedSysSchema."Id")
AND ssp."Name" = 'AdministratedByRecords'
AND ssp."Value" = 'True'
AND ssp."SysSchemaId" IS NOT NULL
) THEN 1 ELSE 0 END) AdministratedByRecords
,(CASE WHEN EXISTS (
SELECT 1
FROM "SysSchemaProperty" ssp WHERE ((ssp."SysSchemaId" = ss."Id" AND NOT ss."ExtendParent")
OR ssp."SysSchemaId" = DerivedSysSchema."Id")
AND ssp."Name" = 'IsTrackChangesInDB'
AND ssp."Value" = 'True'
AND ssp."SysSchemaId" IS NOT NULL
) THEN 1 ELSE 0 END) IsTrackChangesInDB
FROM "SysSchema" ss
LEFT OUTER JOIN "SysSchema" DerivedSysSchema ON (ss."Id" = DerivedSysSchema."ParentId" AND DerivedSysSchema."ExtendParent")
WHERE ss."ManagerName" = 'EntitySchemaManager' AND NOT ss."ExtendParent"
) AdministrationPropertiesAll
GROUP BY AdministrationPropertiesAll.Id
)
SELECT BaseSchema."UId" "Id"
,BaseSchema."UId"
,BaseSchema."CreatedOn"
,BaseSchema."CreatedById"
,BaseSchema."ModifiedOn"
,BaseSchema."ModifiedById"
,BaseSchema."Name"
,public."VwSysSchemaExtending"."TopExtendingCaption" "Caption"
,BaseSchema."Description"
,EXISTS (
SELECT 1
FROM "SysLookup"
WHERE "SysEntitySchemaUId" = BaseSchema."UId"
) "IsLookup"
,EXISTS (
SELECT 1
FROM "SysModule" sm
INNER JOIN "SysModuleEntity" sme ON sme."Id" = sm."SysModuleEntityId"
WHERE BaseSchema."UId" = sme."SysEntitySchemaUId"
) "IsModule"
,SysSchemaAdministrationProperties."AdministratedByOperations"::BOOLEAN
,SysSchemaAdministrationProperties."AdministratedByColumns"::BOOLEAN
,SysSchemaAdministrationProperties."AdministratedByRecords"::BOOLEAN
,SysSchemaAdministrationProperties."IsTrackChangesInDB"::BOOLEAN
,"SysWorkspaceId"
,BaseSchema."ProcessListeners"
,EXISTS (
SELECT 1
FROM "SysSSPEntitySchemaAccessList"
WHERE "EntitySchemaUId" = BaseSchema."UId"
) "IsInSSPEntitySchemaAccessList"
FROM "SysSchema" BaseSchema
INNER JOIN "VwSysSchemaExtending" ON BaseSchema."Id" = "VwSysSchemaExtending"."BaseSchemaId"
INNER JOIN "SysPackage" on BaseSchema."SysPackageId" = "SysPackage"."Id"
INNER JOIN SysSchemaAdministrationProperties ON BaseSchema."Id" = SysSchemaAdministrationProperties."SysSchemaId";
CREATE RULE RU_VwAdministrativeObjects AS
ON UPDATE TO "VwAdministrativeObjects"
DO INSTEAD NOTHING;
Example 3 (stored procedures)
Example
Example of an SQL script that creates a stored procedure. The stored procedure uses loops, cursors, and temporary tables.
-- Stored procedure that uses loops, cursors, and temporary tables
-- MSSQL
IF NOT OBJECT_ID('[dbo].[tsp_ActualizeUserRoles]') IS NULL
BEGIN
DROP PROCEDURE [dbo].[tsp_ActualizeUserRoles]
END
GO
CREATE PROCEDURE dbo.tsp_ActualizeUserRoles (@UserId uniqueidentifier)
AS
BEGIN
SET NOCOUNT ON
IF OBJECT_ID('tempdb..#AdminUnitListTemp') IS NOT NULL
BEGIN
DROP TABLE [#AdminUnitListTemp];
END;
CREATE TABLE [#AdminUnitListTemp] (
[UserId] uniqueidentifier NOT NULL,
[Id] uniqueidentifier NOT NULL,
[Name] NVARCHAR(250) NOT NULL,
[ParentRoleId] uniqueidentifier NULL,
[Granted] BIT NULL
);
DECLARE @GetAdminUnitList TABLE (
[Id] uniqueidentifier NOT NULL,
[Name] nvarchar(260) NOT NULL,
[ParentRoleId] uniqueidentifier NULL
);
DECLARE @NewRoles TABLE ([Id] uniqueidentifier NOT NULL);
DECLARE @OldUserRoles TABLE ([Id] uniqueidentifier NOT NULL);
DECLARE @getUserAdminUnits CURSOR;
DECLARE @SysAdminUnitRoles TABLE (
[Id] uniqueidentifier,
[Name] nvarchar(260),
[ParentRoleId] uniqueidentifier
);
DECLARE @ManagersBeforeActualization TABLE ([Id] uniqueidentifier NOT NULL);
DECLARE @ManagersAfterActualization TABLE ([Id] uniqueidentifier NOT NULL);
DECLARE @StillManagers TABLE ([Id] uniqueidentifier NOT NULL);
DECLARE @NoLongerManagers TABLE ([Id] uniqueidentifier NOT NULL);
DECLARE @NewManagers TABLE ([Id] uniqueidentifier NOT NULL);
DECLARE @SysAdminUnitId uniqueidentifier;
-- Old user roles
INSERT INTO @OldUserRoles
SELECT DISTINCT [SysAdminUnitInRole].[SysAdminUnitRoleId] [Id]
FROM [SysAdminUnitInRole]
WHERE [SysAdminUnitInRole].[SysAdminUnitId] = @UserId
-- Old user managers
INSERT INTO @ManagersBeforeActualization
SELECT DISTINCT [SysUserInRole].[SysUserId] [Id]
FROM [SysAdminUnitInRole]
INNER JOIN [SysAdminUnit] [Roles]
ON [SysAdminUnitInRole].[SysAdminUnitRoleId] = [Roles].[Id]
INNER JOIN @OldUserRoles
ON [Roles].[ParentRoleId] = [@OldUserRoles].[Id]
INNER JOIN [SysUserInRole]
ON [SysUserInRole].[SysRoleId] = [Roles].[Id]
WHERE [Roles].[SysAdminUnitTypeValue] = 2
-- Get and insert new user roles
INSERT INTO @GetAdminUnitList EXEC [tsp_GetAdminUnitList] @UserId=@UserId;
INSERT INTO @NewRoles SELECT [Id] FROM @GetAdminUnitList;
DELETE FROM [SysAdminUnitInRole] WHERE [SysAdminUnitId] = @UserId;
INSERT INTO [SysAdminUnitInRole] ([SysAdminUnitId], [SysAdminUnitRoleId])
SELECT DISTINCT @UserId, [Id] FROM @NewRoles;
-- User managers after actualization
INSERT INTO @ManagersAfterActualization
SELECT DISTINCT
[SysUserInRole].[SysUserId] [Id]
FROM [SysAdminUnitInRole]
INNER JOIN [SysAdminUnit] [Roles]
ON [SysAdminUnitInRole].[SysAdminUnitRoleId] = [Roles].[Id]
INNER JOIN @NewRoles NewRoles
ON [Roles].[ParentRoleId] = NewRoles.[Id]
INNER JOIN [SysUserInRole]
ON [SysUserInRole].[SysRoleId] = [Roles].[Id]
WHERE [Roles].[SysAdminUnitTypeValue] = 2;
-- New (who were not but become) user managers
INSERT INTO @NewManagers
SELECT [Id] FROM @ManagersAfterActualization AS managersAfterActualization
WHERE NOT EXISTS (
SELECT NULL
FROM @ManagersBeforeActualization AS managersBeforeActualization
WHERE managersBeforeActualization.[Id] = managersAfterActualization.[Id]
);
-- Add all user roles to new managers and their grantee-users, if they arent already have
SET @getUserAdminUnits = CURSOR FOR
SELECT DISTINCT [Id] FROM (
SELECT [Id] FROM @NewManagers
UNION
SELECT [GranteeSysAdminUnitId]
FROM [SysAdminUnitGrantedRight]
WHERE EXISTS (
SELECT NULL FROM @NewManagers as newManagers
WHERE [SysAdminUnitGrantedRight].[GrantorSysAdminUnitId] = newManagers.[Id]
)
) Roles;
OPEN @getUserAdminUnits;
FETCH NEXT
FROM @getUserAdminUnits INTO @SysAdminUnitId;
WHILE @@FETCH_STATUS = 0
BEGIN
INSERT INTO [SysAdminUnitInRole] ([SysAdminUnitId], [SysAdminUnitRoleId])
SELECT DISTINCT @SysAdminUnitId, [Id]
FROM @NewRoles AS newRoles
WHERE NOT EXISTS (
SELECT 1
FROM [SysAdminUnitInRole]
WHERE [SysAdminUnitInRole].[SysAdminUnitId] = @SysAdminUnitId
AND [SysAdminUnitInRole].[SysAdminUnitRoleId] = newRoles.[Id]
);
FETCH NEXT FROM @getUserAdminUnits INTO @SysAdminUnitId;
END;
CLOSE @getUserAdminUnits;
DEALLOCATE @getUserAdminUnits;
DECLARE @isUserLostAtLeastOneRole INT = (
SELECT COUNT(*)
FROM @OldUserRoles AS oldUserRoles
WHERE NOT EXISTS (
SELECT 1
FROM @NewRoles AS newUserRoles
WHERE newUserRoles.[Id] = oldUserRoles.[Id]
)
);
-- Still (who were and remained) user managers
INSERT INTO @StillManagers
SELECT DISTINCT managersAfterActualization.[Id] AS [Id]
FROM @ManagersAfterActualization AS managersAfterActualization
JOIN @ManagersBeforeActualization AS managersBeforeActualization
ON managersAfterActualization.[Id] = managersBeforeActualization.[Id];
-- If user lost at least one role, we need to actualize all his still-managers.
-- If not (user only gained new roles) - we just add to still-managers and their grantee-users new user roles.
IF (@isUserLostAtLeastOneRole = 0)
BEGIN
-- Add all new user roles to his still-managers and to their grantee-users
SET @getUserAdminUnits = CURSOR FOR
SELECT DISTINCT [Id] FROM (
SELECT stillManagers.[Id] AS [Id]
FROM @StillManagers AS stillManagers
UNION
SELECT [GranteeSysAdminUnitId]
FROM [SysAdminUnitGrantedRight]
WHERE EXISTS (
SELECT NULL
FROM @StillManagers AS stillManagers
WHERE stillManagers.[Id] = [GrantorSysAdminUnitId]
)
) Roles;
OPEN @getUserAdminUnits;
FETCH NEXT
FROM @getUserAdminUnits INTO @SysAdminUnitId;
WHILE @@FETCH_STATUS = 0
BEGIN
INSERT INTO [SysAdminUnitInRole] ([SysAdminUnitId], [SysAdminUnitRoleId])
SELECT DISTINCT @SysAdminUnitId, [Id]
FROM @NewRoles AS newRoles
WHERE NOT EXISTS (
SELECT 1
FROM [SysAdminUnitInRole]
WHERE [SysAdminUnitInRole].[SysAdminUnitId] = @SysAdminUnitId
AND [SysAdminUnitInRole].[SysAdminUnitRoleId] = newRoles.[Id]
);
FETCH NEXT FROM @getUserAdminUnits INTO @SysAdminUnitId;
END;
CLOSE @getUserAdminUnits;
DEALLOCATE @getUserAdminUnits;
END ELSE
BEGIN
--Actualize all roles for still-managers
SET @getUserAdminUnits = CURSOR FOR
SELECT DISTINCT [Id]
FROM @StillManagers
UNION
SELECT [GranteeSysAdminUnitId]
FROM [SysAdminUnitGrantedRight]
WHERE EXISTS (
SELECT NULL
FROM @StillManagers AS stillManagers
WHERE stillManagers.[Id] = [GrantorSysAdminUnitId]
);
OPEN @getUserAdminUnits;
FETCH NEXT
FROM @getUserAdminUnits INTO @SysAdminUnitId;
WHILE @@FETCH_STATUS = 0
BEGIN
DELETE FROM @SysAdminUnitRoles;
INSERT INTO @SysAdminUnitRoles
EXEC [tsp_GetAdminUnitList] @UserId=@SysAdminUnitId;
BEGIN TRAN;
DELETE FROM [dbo].[SysAdminUnitInRole] WHERE SysAdminUnitId = @SysAdminUnitId;
INSERT INTO [dbo].[SysAdminUnitInRole] (SysAdminUnitId, SysAdminUnitRoleId)
SELECT @SysAdminUnitId, [Id] FROM @SysAdminUnitRoles;
COMMIT;
FETCH NEXT
FROM @getUserAdminUnits INTO @SysAdminUnitId;
END;
CLOSE @getUserAdminUnits;
DEALLOCATE @getUserAdminUnits;
END;
-- No longer (who were but not remained) user managers
INSERT INTO @NoLongerManagers
SELECT [Id] FROM @ManagersBeforeActualization as managersBeforeActualization
WHERE NOT EXISTS (
SELECT NULL
FROM @ManagersAfterActualization AS managersAfterActualization
WHERE managersAfterActualization.[Id] = managersBeforeActualization.[Id]
);
-- Actualize roles for all noLonger-managers, his grantee-users and all grantee-users of user
SET @getUserAdminUnits = CURSOR FOR
SELECT DISTINCT [Id] FROM (
SELECT [Id] FROM @NoLongerManagers
UNION
SELECT [GranteeSysAdminUnitId]
FROM [SysAdminUnitGrantedRight]
WHERE EXISTS (
SELECT NULL
FROM @NoLongerManagers AS noLongerManagers
WHERE noLongerManagers.[Id] = [GrantorSysAdminUnitId]
)
UNION ALL
SELECT GranteeSysAdminUnitId
FROM SysAdminUnitGrantedRight
WHERE GrantorSysAdminUnitId = @UserId
) Roles;
OPEN @getUserAdminUnits;
FETCH NEXT
FROM @getUserAdminUnits INTO @SysAdminUnitId;
WHILE @@FETCH_STATUS = 0
BEGIN
DELETE FROM @SysAdminUnitRoles;
INSERT INTO @SysAdminUnitRoles
EXEC [tsp_GetAdminUnitList] @UserId=@SysAdminUnitId;
BEGIN TRAN;
DELETE FROM [dbo].[SysAdminUnitInRole] WHERE SysAdminUnitId = @SysAdminUnitId;
INSERT INTO [dbo].[SysAdminUnitInRole] (SysAdminUnitId, SysAdminUnitRoleId)
SELECT @SysAdminUnitId, [Id] FROM @SysAdminUnitRoles;
COMMIT;
FETCH NEXT
FROM @getUserAdminUnits INTO @SysAdminUnitId;
END;
CLOSE @getUserAdminUnits;
DEALLOCATE @getUserAdminUnits;
IF OBJECT_ID('tempdb..#AdminUnitListTemp') IS NOT NULL
BEGIN
DROP TABLE [#AdminUnitListTemp];
END;
END;
GO
-- Stored procedure that uses loops, cursors, and temporary tables
-- PostgreSQL
DROP FUNCTION IF EXISTS "tsp_ActualizeUserRoles";
CREATE FUNCTION "tsp_ActualizeUserRoles"(
UserId UUID
)
RETURNS VOID
AS $$
DECLARE
getUserNewManagers CURSOR FOR
SELECT DISTINCT "Id" FROM (
SELECT "Id" FROM "NewManagers"
UNION
SELECT "GranteeSysAdminUnitId"
FROM "SysAdminUnitGrantedRight"
WHERE EXISTS (
SELECT NULL FROM "NewManagers" as "newManagers"
WHERE "SysAdminUnitGrantedRight"."GrantorSysAdminUnitId" = "newManagers"."Id"
)
) "Roles";
lostUserRolesCount INT;
getUserStillManagers CURSOR FOR
SELECT DISTINCT "stillManagers"."Id" AS "Id"
FROM "StillManagers" AS "stillManagers"
UNION
SELECT "GranteeSysAdminUnitId"
FROM "SysAdminUnitGrantedRight"
WHERE EXISTS (
SELECT NULL
FROM "StillManagers" AS "stillManagers"
WHERE "stillManagers"."Id" = "GrantorSysAdminUnitId"
);
getUserNoLongerManagers CURSOR FOR
SELECT DISTINCT "Id" FROM (
SELECT "Id"
FROM "NoLongerManagers"
UNION
SELECT "GranteeSysAdminUnitId"
FROM "SysAdminUnitGrantedRight"
WHERE EXISTS (
SELECT NULL
FROM "NoLongerManagers" AS "noLongerManagers"
WHERE "noLongerManagers"."Id" = "GrantorSysAdminUnitId"
)
UNION ALL
SELECT "GranteeSysAdminUnitId"
FROM "SysAdminUnitGrantedRight"
WHERE "GrantorSysAdminUnitId" = UserId
) "Roles";
BEGIN
DROP TABLE IF EXISTS "GetAdminUnitListTmp";
CREATE TEMP TABLE "GetAdminUnitListTmp" (
"Id" UUID,
"Name" VARCHAR(250),
"ParentRoleId" UUID
);
DROP TABLE IF EXISTS "SysAdminUnitRoles";
CREATE TEMP TABLE "SysAdminUnitRoles" (
"Id" UUID,
"Name" VARCHAR(250),
"ParentRoleId" UUID
);
-- Old user roles
DROP TABLE IF EXISTS "OldUserRoles";
CREATE TEMP TABLE "OldUserRoles" (
"Id" UUID
);
INSERT INTO "OldUserRoles"
SELECT DISTINCT "SysAdminUnitInRole"."SysAdminUnitRoleId" "Id"
FROM "SysAdminUnitInRole"
WHERE "SysAdminUnitInRole"."SysAdminUnitId" = UserId;
-- Old user managers
DROP TABLE IF EXISTS "ManagersBeforeActualization";
CREATE TEMP TABLE "ManagersBeforeActualization" (
"Id" UUID
);
INSERT INTO "ManagersBeforeActualization"
SELECT DISTINCT "SysUserInRole"."SysUserId" "Id"
FROM "SysAdminUnitInRole"
INNER JOIN "SysAdminUnit" "Roles"
ON "SysAdminUnitInRole"."SysAdminUnitRoleId" = "Roles"."Id"
INNER JOIN "OldUserRoles"
ON "Roles"."ParentRoleId" = "OldUserRoles"."Id"
INNER JOIN "SysUserInRole"
ON "SysUserInRole"."SysRoleId" = "Roles"."Id"
WHERE "Roles"."SysAdminUnitTypeValue" = 2;
-- Get and insert new user roles
DROP TABLE IF EXISTS "GetAdminUnitList";
CREATE TEMP TABLE "GetAdminUnitList" (
"Id" UUID,
"Name" VARCHAR(250),
"ParentRoleId" UUID
);
DROP TABLE IF EXISTS "NewRoles";
CREATE TEMP TABLE "NewRoles" (
"Id" UUID
);
INSERT INTO "GetAdminUnitList" SELECT * FROM "tsp_GetAdminUnitList"(UserId);
INSERT INTO "NewRoles" SELECT "Id" FROM "GetAdminUnitList";
DELETE FROM "SysAdminUnitInRole" WHERE "SysAdminUnitId" = UserId;
INSERT INTO "SysAdminUnitInRole" ("SysAdminUnitId", "SysAdminUnitRoleId")
SELECT DISTINCT UserId, "Id" FROM "NewRoles";
-- User managers after actualization
DROP TABLE IF EXISTS "ManagersAfterActualization";
CREATE TEMP TABLE "ManagersAfterActualization" (
"Id" UUID
);
INSERT INTO "ManagersAfterActualization"
SELECT DISTINCT
"SysUserInRole"."SysUserId" "Id"
FROM "SysAdminUnitInRole"
INNER JOIN "SysAdminUnit" "Roles"
ON "SysAdminUnitInRole"."SysAdminUnitRoleId" = "Roles"."Id"
INNER JOIN "NewRoles" "NewRoles"
ON "Roles"."ParentRoleId" = "NewRoles"."Id"
INNER JOIN "SysUserInRole"
ON "SysUserInRole"."SysRoleId" = "Roles"."Id"
WHERE "Roles"."SysAdminUnitTypeValue" = 2;
-- New (who were not but become) user managers
DROP TABLE IF EXISTS "NewManagers";
CREATE TEMP TABLE "NewManagers" (
"Id" UUID
);
INSERT INTO "NewManagers"
SELECT "Id" FROM "ManagersAfterActualization" AS "managersAfterActualization"
WHERE NOT EXISTS (
SELECT NULL
FROM "ManagersBeforeActualization" AS "managersBeforeActualization"
WHERE "managersBeforeActualization"."Id" = "managersAfterActualization"."Id"
);
-- Add all user roles to new managers and their grantee-users, if they arent already have
FOR UserNewManager IN getUserNewManagers LOOP
EXIT WHEN UserNewManager = NULL;
INSERT INTO "SysAdminUnitInRole" ("SysAdminUnitId", "SysAdminUnitRoleId")
SELECT DISTINCT UserNewManager."Id", "Id"
FROM "NewRoles" AS "newRoles"
WHERE NOT EXISTS (
SELECT 1
FROM "SysAdminUnitInRole"
WHERE "SysAdminUnitInRole"."SysAdminUnitId" = UserNewManager."Id"
AND "SysAdminUnitInRole"."SysAdminUnitRoleId" = "newRoles"."Id"
);
END LOOP;
SELECT COUNT(*) INTO lostUserRolesCount
FROM "OldUserRoles" AS "oldUserRoles"
WHERE NOT EXISTS (
SELECT 1
FROM "NewRoles" AS "newUserRoles"
WHERE "newUserRoles"."Id" = "oldUserRoles"."Id"
);
-- Still (who were and remained) user managers
DROP TABLE IF EXISTS "StillManagers";
CREATE TEMP TABLE "StillManagers" (
"Id" UUID
);
INSERT INTO "StillManagers"
SELECT DISTINCT "managersAfterActualization"."Id" AS "Id"
FROM "ManagersAfterActualization" AS "managersAfterActualization"
JOIN "ManagersBeforeActualization" AS "managersBeforeActualization"
ON "managersAfterActualization"."Id" = "managersBeforeActualization"."Id";
-- If user lost at least one role, we need to actualize all his still-managers.
-- If not (user only gained new roles) - we just add to still-managers and their grantee-users new user roles.
IF lostUserRolesCount = 0 THEN
-- Add all new user roles to his still-managers and to their grantee-users
FOR UserStillManager IN getUserStillManagers LOOP
EXIT WHEN UserStillManager = NULL;
INSERT INTO "SysAdminUnitInRole" ("SysAdminUnitId", "SysAdminUnitRoleId")
SELECT DISTINCT UserStillManager."Id", "Id"
FROM "NewRoles" AS "newRoles"
WHERE NOT EXISTS (
SELECT 1
FROM "SysAdminUnitInRole"
WHERE "SysAdminUnitInRole"."SysAdminUnitId" = UserStillManager."Id"
AND "SysAdminUnitInRole"."SysAdminUnitRoleId" = "newRoles"."Id"
);
END LOOP;
ELSE
--Actualize all roles for still-managers
FOR UserStillManager IN getUserStillManagers LOOP
EXIT WHEN UserStillManager = NULL;
DELETE FROM "SysAdminUnitRoles";
INSERT INTO "SysAdminUnitRoles"
SELECT * FROM "tsp_GetAdminUnitList"(UserStillManager."Id");
DELETE FROM "SysAdminUnitInRole" WHERE "SysAdminUnitId" = UserStillManager."Id";
INSERT INTO "SysAdminUnitInRole" ("SysAdminUnitId", "SysAdminUnitRoleId")
SELECT UserStillManager."Id", "Id" FROM "SysAdminUnitRoles";
END LOOP;
END IF;
-- No longer (who were but not remained) user managers
DROP TABLE IF EXISTS "NoLongerManagers";
CREATE TEMP TABLE "NoLongerManagers" (
"Id" UUID
);
INSERT INTO "NoLongerManagers"
SELECT "Id" FROM "ManagersBeforeActualization" AS "managersBeforeActualization"
WHERE NOT EXISTS (
SELECT NULL
FROM "ManagersAfterActualization" AS "managersAfterActualization"
WHERE "managersAfterActualization"."Id" = "managersBeforeActualization"."Id"
);
-- Actualize roles for all noLonger-managers, his grantee-users and all grantee-users of user
FOR UserNoLongerManager IN getUserNoLongerManagers LOOP
EXIT WHEN UserNoLongerManager = NULL;
DELETE FROM "SysAdminUnitRoles";
INSERT INTO "SysAdminUnitRoles"
SELECT * FROM "tsp_GetAdminUnitList"(UserNoLongerManager."Id");
DELETE FROM "SysAdminUnitInRole"
WHERE "SysAdminUnitId" = UserNoLongerManager."Id";
INSERT INTO "SysAdminUnitInRole" ("SysAdminUnitId", "SysAdminUnitRoleId")
SELECT UserNoLongerManager."Id", "Id" FROM "SysAdminUnitRoles";
END LOOP;
DROP TABLE IF EXISTS "GetAdminUnitListTmp";
END;
$$ LANGUAGE plpgsql;
Example 4 (stored procedures)
Example
Example of a recursive stored procedure that returns a table and uses PERFORM
.
-- Recursive stored procedure that returns a table and uses PERFORM:
-- MSSQL
IF NOT OBJECT_ID('[dbo].[tsp_GetAdminUnitList]') IS NULL
BEGIN
DROP PROCEDURE [dbo].[tsp_GetAdminUnitList];
END;
GO
CREATE PROCEDURE dbo.tsp_GetAdminUnitList (
@UserId uniqueidentifier, @Granted BIT = 0
)
AS
BEGIN
SET NOCOUNT ON;
DECLARE @StartNestedLevel INT;
IF object_id('tempdb..#AdminUnitList') IS NULL
BEGIN
CREATE TABLE [#AdminUnitList]
(
[Id] uniqueidentifier NOT NULL,
[Name] NVARCHAR(250) NULL,
[ParentRoleId] uniqueidentifier NULL,
[Granted] BIT NULL,
Level INT NOT NULL
);
SET @StartNestedLevel = @@NESTLEVEL;
END;
DECLARE @ConnectionType INT = (SELECT [ConnectionType] FROM SysAdminUnit WHERE [Id] = @UserId);
-- #AdminUnitListTemp should be created in tsp_ActualizeUserRoles or in tsp_ActualizeAdminUnitInRole
DECLARE @IsAdminUnitListTempExists BIT = OBJECT_ID('tempdb..#AdminUnitListTemp');
IF (@IsAdminUnitListTempExists IS NULL)
BEGIN
WITH
[MainSelect] AS (
SELECT
[Id] [Id],
[Name] [Name],
[ParentRoleId] [ParentRoleId]
FROM
[dbo].[SysAdminUnit]
WHERE
([SysAdminUnitTypeValue] <= 4 OR [SysAdminUnitTypeValue] = 6)
AND [ConnectionType] = @ConnectionType
UNION ALL
SELECT
[Id] [Id],
[Name] [Name],
[ParentRoleId] [ParentRoleId]
FROM
[dbo].[SysAdminUnit]
WHERE
[Id] = @UserId),
[ChiefUnitsSelect] AS (
(
SELECT
[Chief].[ParentRoleId] [Id]
FROM
[dbo].[SysUserInRole] userInRole
INNER JOIN [dbo].[SysAdminUnit] sau ON (sau.[Id] = userInRole.[SysUserId])
INNER JOIN [dbo].[SysAdminUnit] [Chief] ON ([Chief].[Id] = userInRole.[SysRoleId])
WHERE
sau.[Id] = @UserId AND NOT (userInRole.[SysRoleId] IS NULL) AND [Chief].[SysAdminUnitTypeValue] = 2
UNION ALL
SELECT
[Chief].[ParentRoleId] [Id]
FROM
[dbo].[SysAdminUnit] [Chief]
WHERE
[Chief].[Id] = @UserId AND [Chief].[SysAdminUnitTypeValue] = 2
)
UNION ALL
SELECT
sau.[Id]
FROM
[ChiefUnitsSelect]
INNER JOIN [dbo].[SysAdminUnit] sau ON (sau.[ParentRoleId] = [ChiefUnitsSelect].[Id])
WHERE
sau.[SysAdminUnitTypeValue] < 4
),
[HierarchicalSelect] AS (
SELECT
[Id],
[Name],
[ParentRoleId],
0 [Level]
FROM
[MainSelect] [SelectStartLevel]
WHERE
[Id] IN (
SELECT
userInRole.[SysRoleId]
FROM
[dbo].[SysUserInRole] userInRole
INNER JOIN [dbo].[SysAdminUnit] sau ON (sau.[Id] = userInRole.[SysUserId])
WHERE
sau.[Id] = @UserId
UNION ALL
SELECT [Id] FROM [ChiefUnitsSelect]
UNION ALL
SELECT
[Id]
FROM
[dbo].[SysAdminUnit]
WHERE
([ParentRoleId] IS NULL OR [Id] = @UserId)
AND [SysAdminUnitTypeValue] < 4
UNION ALL
SELECT
[FuncRoleId]
FROM
[dbo].[SysFuncRoleInOrgRole]
WHERE
[SysFuncRoleInOrgRole].[OrgRoleId] = @UserId
)
UNION ALL
SELECT
[SelectPriorLevel].[Id],
[SelectPriorLevel].[Name],
[SelectPriorLevel].[ParentRoleId],
[Level] + 1 level
FROM
[MainSelect] [SelectPriorLevel]
INNER JOIN [HierarchicalSelect] hierSelect ON (hierSelect.[ParentRoleId] = [SelectPriorLevel].[Id])
),
[FuncRoleHierarchicalSelect] AS (
SELECT
[Id],
[Name],
[ParentRoleId],
0 [Level]
FROM
[MainSelect] [StartLevel]
WHERE EXISTS (
SELECT NULL
FROM [dbo].[SysFuncRoleInOrgRole] funcRoleInOrgRole
INNER JOIN [HierarchicalSelect] hierSelect ON funcRoleInOrgRole.[OrgRoleId] = hierSelect.[Id]
WHERE funcRoleInOrgRole.[FuncRoleId] = [StartLevel].[Id]
)
UNION ALL
SELECT
[PriorLevel].[Id],
[PriorLevel].[Name],
[PriorLevel].[ParentRoleId],
[Level] + 1 level
FROM
[MainSelect] [PriorLevel]
INNER JOIN [FuncRoleHierarchicalSelect] funcRoleHierSelect ON (funcRoleHierSelect.[ParentRoleId] = [PriorLevel].[Id])
),
[DependentUserSelect] AS (
SELECT
mainSelect.[Id] [Id],
mainSelect.[Name] [Name],
mainSelect.[ParentRoleId] [ParentRoleId],
0 [Level]
FROM
[MainSelect] mainSelect
INNER JOIN [SysUserInRole] userInRole
ON mainSelect.[Id] = userInRole.[SysUserId]
INNER JOIN [ChiefUnitsSelect] [AllUnits]
ON [AllUnits].[Id] = userInRole.[SysRoleId]
WHERE
NOT EXISTS (
SELECT
[UserUnits].[Id]
FROM [ChiefUnitsSelect] [UserUnits]
INNER JOIN [SysUserInRole] [UserInRole]
ON [UserUnits].[Id] = [UserInRole].[SysRoleId]
INNER JOIN [SysAdminUnit] sau
ON sau.[Id] = [UserUnits].[Id]
WHERE sau.[SysAdminUnitTypeValue] = 2
AND [UserInRole].[SysUserId] = @UserId
AND [UserUnits].[Id] = [AllUnits].[Id])
)
INSERT INTO [#AdminUnitList] ([Id], [Name], [ParentRoleId], [Granted], [Level])
SELECT DISTINCT
[Id],
[Name],
[ParentRoleId],
@Granted,
@@NESTLEVEL
FROM
(
SELECT
[Id],
[Name],
[ParentRoleId]
FROM
[HierarchicalSelect]
UNION ALL
SELECT
[Id],
[Name],
[ParentRoleId]
FROM
[dbo].[SysAdminUnit]
WHERE
[Id] = @UserId
UNION ALL
SELECT
[Id],
[Name],
[ParentRoleId]
FROM
[FuncRoleHierarchicalSelect]
UNION ALL
SELECT
[Id],
[Name],
[ParentRoleId]
FROM
[DependentUserSelect]
) [AdminUnitList];
END ELSE
BEGIN
DECLARE @alreadyGotRolesForThisUser bit = 0;
IF (@IsAdminUnitListTempExists = 1)
BEGIN
SET @alreadyGotRolesForThisUser = (SELECT CAST( CASE WHEN EXISTS(SELECT 1 FROM [#AdminUnitListTemp]
WHERE [UserId] = @UserId
)
THEN 1
ELSE 0
END
AS BIT));
END;
IF (@alreadyGotRolesForThisUser = 1)
BEGIN
INSERT INTO [#AdminUnitList] ([Id], [Name], [ParentRoleId], [Granted], [Level])
SELECT DISTINCT
[Id],
[Name],
[ParentRoleId],
@Granted,
@@NESTLEVEL
FROM [#AdminUnitListTemp] WHERE UserId = @UserId;
END ELSE
BEGIN
WITH
[MainSelect] AS (
SELECT
[Id] [Id],
[Name] [Name],
[ParentRoleId] [ParentRoleId]
FROM
[dbo].[SysAdminUnit]
WHERE
([SysAdminUnitTypeValue] <= 4 OR [SysAdminUnitTypeValue] = 6)
AND [ConnectionType] = @ConnectionType
UNION ALL
SELECT
[Id] [Id],
[Name] [Name],
[ParentRoleId] [ParentRoleId]
FROM
[dbo].[SysAdminUnit]
WHERE
[Id] = @UserId),
[ChiefUnitsSelect] AS (
(
SELECT
[Chief].[ParentRoleId] [Id]
FROM
[dbo].[SysUserInRole] sysUserInRole
INNER JOIN [dbo].[SysAdminUnit] sau ON (sau.[Id] = sysUserInRole.[SysUserId])
INNER JOIN [dbo].[SysAdminUnit] [Chief] ON ([Chief].[Id] = sysUserInRole.[SysRoleId])
WHERE
sau.[Id] = @UserId AND NOT (sysUserInRole.[SysRoleId] IS NULL) AND [Chief].[SysAdminUnitTypeValue] = 2
UNION ALL
SELECT
[Chief].[ParentRoleId] [Id]
FROM
[dbo].[SysAdminUnit] [Chief]
WHERE
[Chief].[Id] = @UserId AND [Chief].[SysAdminUnitTypeValue] = 2
)
UNION ALL
SELECT
sau.[Id]
FROM
[ChiefUnitsSelect] ChiefUnitsSelect
INNER JOIN [dbo].[SysAdminUnit] sau ON (sau.[ParentRoleId] = [ChiefUnitsSelect].[Id])
WHERE
sau.[SysAdminUnitTypeValue] < 4
),
[HierarchicalSelect] AS (
SELECT
[Id],
[Name],
[ParentRoleId],
0 [Level]
FROM
[MainSelect] [SelectStartLevel]
WHERE EXISTS (
SELECT NULL
FROM (
SELECT [SysUserInRole].[SysRoleId] AS RoleId
FROM [dbo].[SysUserInRole]
INNER JOIN [dbo].[SysAdminUnit] ON ([SysAdminUnit].[Id] = [SysUserInRole].[SysUserId])
WHERE [SysAdminUnit].[Id] = @UserId
UNION ALL
SELECT [Id] AS RoleId
FROM [ChiefUnitsSelect]
UNION ALL
SELECT [Id] AS RoleId
FROM [dbo].[SysAdminUnit]
WHERE ([ParentRoleId] IS NULL OR [Id] = @UserId)
AND [SysAdminUnitTypeValue] < 4
UNION ALL
SELECT [FuncRoleId] AS RoleId
FROM [dbo].[SysFuncRoleInOrgRole]
WHERE [SysFuncRoleInOrgRole].[OrgRoleId] = @UserId
) AS Roles
WHERE Roles.RoleId = [SelectStartLevel].[Id]
)
UNION ALL
SELECT
[SelectPriorLevel].[Id],
[SelectPriorLevel].[Name],
[SelectPriorLevel].[ParentRoleId],
[Level] + 1 level
FROM
[MainSelect] [SelectPriorLevel]
INNER JOIN [HierarchicalSelect] hierSelect ON (hierSelect.[ParentRoleId] = [SelectPriorLevel].[Id])
),
[FuncRoleHierarchicalSelect] AS (
SELECT
[Id],
[Name],
[ParentRoleId],
0 [Level]
FROM
[MainSelect] [StartLevel]
WHERE EXISTS (
SELECT NULL
FROM [dbo].[SysFuncRoleInOrgRole] funcRoleInOrgRole
INNER JOIN [HierarchicalSelect] hierSelect ON funcRoleInOrgRole.[OrgRoleId] = hierSelect.[Id]
WHERE funcRoleInOrgRole.[FuncRoleId] = [StartLevel].[Id]
)
UNION ALL
SELECT
[PriorLevel].[Id],
[PriorLevel].[Name],
[PriorLevel].[ParentRoleId],
[Level] + 1
FROM
[MainSelect] [PriorLevel]
INNER JOIN [FuncRoleHierarchicalSelect] funcRolesHierSelect ON (funcRolesHierSelect.[ParentRoleId] = [PriorLevel].[Id])
),
[DependentUserSelect] AS (
SELECT
[MainSelect].[Id] [Id],
[MainSelect].[Name] [Name],
[MainSelect].[ParentRoleId] [ParentRoleId],
0 [Level]
FROM
[MainSelect]
INNER JOIN [SysUserInRole] sysUserInRole
ON [MainSelect].[Id] = sysUserInRole.[SysUserId]
INNER JOIN [ChiefUnitsSelect] [AllUnits]
ON [AllUnits].[Id] = sysUserInRole.[SysRoleId]
WHERE
NOT EXISTS (
SELECT
[UserUnits].[Id]
FROM [ChiefUnitsSelect] [UserUnits]
INNER JOIN [SysUserInRole] [UserInRole]
ON [UserUnits].[Id] = [UserInRole].[SysRoleId]
INNER JOIN [SysAdminUnit] sau
ON sau.[Id] = [UserUnits].[Id]
WHERE sau.[SysAdminUnitTypeValue] = 2
AND [UserInRole].[SysUserId] = @UserId
AND [UserUnits].[Id] = [AllUnits].[Id])
)
INSERT INTO #AdminUnitListTemp ([UserId], [Id], [Name], [ParentRoleId], [Granted])
SELECT DISTINCT
@UserId,
[Id],
[Name],
[ParentRoleId],
@Granted
FROM
(
SELECT
[Id],
[Name],
[ParentRoleId]
FROM
[HierarchicalSelect]
UNION ALL
SELECT
[Id],
[Name],
[ParentRoleId]
FROM
[dbo].[SysAdminUnit]
WHERE
[Id] = @UserId
UNION ALL
SELECT
[Id],
[Name],
[ParentRoleId]
FROM
[FuncRoleHierarchicalSelect]
UNION ALL
SELECT
[Id],
[Name],
[ParentRoleId]
FROM
[DependentUserSelect]
) [AdminUnitList];
INSERT INTO [#AdminUnitList] ([Id], [Name], [ParentRoleId], [Granted], [Level])
SELECT DISTINCT
[Id],
[Name],
[ParentRoleId],
@Granted,
@@NESTLEVEL
FROM [#AdminUnitListTemp] WHERE UserId = @UserId;
END;
END;
DECLARE @DependentUserId uniqueidentifier;
DECLARE @DependentUsersList CURSOR;
SET @DependentUsersList = CURSOR FOR
SELECT
[#AdminUnitList].[Id]
FROM
[#AdminUnitList]
INNER JOIN [SysAdminUnit] ON [#AdminUnitList].[Id] = [SysAdminUnit].[Id]
WHERE
[SysAdminUnit].[SysAdminUnitTypeValue] = 4 AND [#AdminUnitList].[Id] <> @UserId
AND [#AdminUnitList].[Granted] <> 1 AND [#AdminUnitList].[Level] >= @@NESTLEVEL;
OPEN @DependentUsersList;
FETCH NEXT
FROM @DependentUsersList INTO @DependentUserId;
WHILE @@FETCH_STATUS = 0
BEGIN
EXEC [tsp_GetAdminUnitList] @UserId=@DependentUserId, @Granted=1;
FETCH NEXT
FROM @DependentUsersList INTO @DependentUserId;
END;
CLOSE @DependentUsersList;
DEALLOCATE @DependentUsersList;
DECLARE @GrantorSysAdminUnitId uniqueidentifier;
DECLARE @getGrantorSysAdminUnitList CURSOR;
SET @getGrantorSysAdminUnitList = CURSOR FOR
SELECT
[GrantorSysAdminUnitId]
FROM
[dbo].[SysAdminUnitGrantedRight]
WHERE
[GranteeSysAdminUnitId] = @UserId
AND NOT EXISTS(SELECT * FROM [#AdminUnitList] WHERE [Id] = @UserId AND [Granted] = 1 AND [Level] < @@NESTLEVEL);
OPEN @getGrantorSysAdminUnitList;
FETCH NEXT
FROM @getGrantorSysAdminUnitList INTO @GrantorSysAdminUnitId;
WHILE @@FETCH_STATUS = 0
BEGIN
EXEC [tsp_GetAdminUnitList] @UserId=@GrantorSysAdminUnitId, @Granted=1;
FETCH NEXT
FROM @getGrantorSysAdminUnitList INTO @GrantorSysAdminUnitId;
END;
CLOSE @getGrantorSysAdminUnitList;
DEALLOCATE @getGrantorSysAdminUnitList;
IF @@NESTLEVEL = @StartNestedLevel
BEGIN
WITH QQ ([Id], [Name], [ParentRoleId], SysAdminUnitTypeValue) as (
SELECT DISTINCT adminUnitList.[Id],
adminUnitList.[Name],
adminUnitList.[ParentRoleId],
sau.SysAdminUnitTypeValue
FROM [#AdminUnitList] adminUnitList
INNER JOIN SysAdminUnit sau on sau.Id = adminUnitList.[Id]
)
SELECT [Id], [Name], [ParentRoleId] FROM QQ
ORDER BY SysAdminUnitTypeValue DESC;
END;
END;
GO
-- Recursive stored procedure that returns a table and uses PERFORM:
-- PostgreSQL
DROP FUNCTION IF EXISTS "tsp_GetAdminUnitList";
CREATE FUNCTION "tsp_GetAdminUnitList"(
UserId UUID,
IsGranted BOOLEAN = FALSE,
NestLevel INT = 0
)
RETURNS TABLE (
"Id" UUID,
"Name" VARCHAR(250),
"ParentRoleId" UUID
)
AS $$
DECLARE
ConnectionType INT;
IsAdminUnitListTempExists BOOLEAN = FALSE;
DependentUserId UUID;
DependentUsersList CURSOR FOR
SELECT
"AdminUnitList"."Id"
FROM
"AdminUnitList"
INNER JOIN "SysAdminUnit" ON "AdminUnitList"."Id" = "SysAdminUnit"."Id"
WHERE
"SysAdminUnit"."SysAdminUnitTypeValue" = 4
AND "AdminUnitList"."Id" <> UserId
AND "AdminUnitList"."Granted" = FALSE
AND "AdminUnitList"."Level" >= NestLevel;
GrantorSysAdminUnitId UUID;
GetGrantorSysAdminUnitList CURSOR FOR
SELECT
"GrantorSysAdminUnitId" AS "Id"
FROM
"SysAdminUnitGrantedRight"
WHERE
"GranteeSysAdminUnitId" = UserId
AND NOT EXISTS (
SELECT *
FROM "AdminUnitList"
WHERE "AdminUnitList"."Id" = UserId
AND "AdminUnitList"."Granted" = TRUE
AND "AdminUnitList"."Level" < NestLevel
);
ParentRoleId UUID = NULL;
BEGIN
IF NestLevel = 0 THEN
CREATE TEMPORARY TABLE IF NOT EXISTS "AdminUnitList" (
"Id" UUID,
"Name" VARCHAR(250),
"ParentRoleId" UUID,
"Granted" BOOLEAN,
"Level" INT
);
TRUNCATE TABLE "AdminUnitList";
END IF;
SELECT "ConnectionType" INTO ConnectionType FROM "SysAdminUnit" WHERE "SysAdminUnit"."Id" = UserId;
WITH RECURSIVE "MainSelect" AS (
SELECT
"SysAdminUnit"."Id" "Id",
"SysAdminUnit"."Name" "Name",
"SysAdminUnit"."ParentRoleId" "ParentRoleId"
FROM
"SysAdminUnit"
WHERE
("SysAdminUnitTypeValue" <= 4 OR "SysAdminUnitTypeValue" = 6)
AND "ConnectionType" = ConnectionType
UNION ALL
SELECT
"SysAdminUnit"."Id" "Id",
"SysAdminUnit"."Name" "Name",
"SysAdminUnit"."ParentRoleId" "ParentRoleId"
FROM
"SysAdminUnit"
WHERE
"SysAdminUnit"."Id" = UserId),
"ChiefUnitsSelect" AS (
SELECT
"chief"."ParentRoleId" "Id"
FROM
"SysUserInRole" AS "userInRole"
INNER JOIN "SysAdminUnit" AS "sau" ON ("sau"."Id" = "userInRole"."SysUserId")
INNER JOIN "SysAdminUnit" AS "chief" ON ("chief"."Id" = "userInRole"."SysRoleId")
WHERE
"sau"."Id" = UserId
AND "userInRole"."SysRoleId" IS NOT NULL
AND "chief"."SysAdminUnitTypeValue" = 2
UNION ALL
SELECT
"chief"."ParentRoleId" "Id"
FROM
"SysAdminUnit" "chief"
WHERE
"chief"."Id" = UserId AND "chief"."SysAdminUnitTypeValue" = 2
UNION ALL
SELECT
"sau"."Id"
FROM
"ChiefUnitsSelect"
INNER JOIN "SysAdminUnit" "sau" ON ("sau"."ParentRoleId" = "ChiefUnitsSelect"."Id")
WHERE
"sau"."SysAdminUnitTypeValue" < 4
),
"HierarchicalSelect" AS (
SELECT
"SelectStartLevel"."Id",
"SelectStartLevel"."Name",
"SelectStartLevel"."ParentRoleId",
0 "Level"
FROM
"MainSelect" "SelectStartLevel"
WHERE
"SelectStartLevel"."Id" IN (
SELECT
"userInRole"."SysRoleId"
FROM
"SysUserInRole" AS "userInRole"
INNER JOIN "SysAdminUnit" AS "sau" ON ("sau"."Id" = "userInRole"."SysUserId")
WHERE
"sau"."Id" = UserId
UNION ALL
SELECT "ChiefUnitsSelect"."Id"
FROM "ChiefUnitsSelect"
UNION ALL
SELECT
"SysAdminUnit"."Id"
FROM
"SysAdminUnit"
WHERE
("SysAdminUnit"."ParentRoleId" IS NULL OR "SysAdminUnit"."Id" = UserId)
AND "SysAdminUnitTypeValue" < 4
UNION ALL
SELECT
"FuncRoleId"
FROM
"SysFuncRoleInOrgRole"
WHERE
"SysFuncRoleInOrgRole"."OrgRoleId" = UserId
)
UNION ALL
SELECT
"SelectPriorLevel"."Id",
"SelectPriorLevel"."Name",
"SelectPriorLevel"."ParentRoleId",
"Level" + 1 "level"
FROM
"MainSelect" "SelectPriorLevel"
INNER JOIN "HierarchicalSelect" AS "hierSelect" ON ("hierSelect"."ParentRoleId" = "SelectPriorLevel"."Id")
),
"FuncRoleHierarchicalSelect" AS (
SELECT
"StartLevel"."Id",
"StartLevel"."Name",
"StartLevel"."ParentRoleId",
0 "Level"
FROM
"MainSelect" "StartLevel"
WHERE EXISTS (
SELECT NULL
FROM "SysFuncRoleInOrgRole" AS "funcRoleInOrgRole"
INNER JOIN "HierarchicalSelect" AS "hierSelect" ON "funcRoleInOrgRole"."OrgRoleId" = "hierSelect"."Id"
WHERE "funcRoleInOrgRole"."FuncRoleId" = "StartLevel"."Id"
)
UNION ALL
SELECT
"PriorLevel"."Id",
"PriorLevel"."Name",
"PriorLevel"."ParentRoleId",
"Level" + 1 "level"
FROM
"MainSelect" "PriorLevel"
INNER JOIN "FuncRoleHierarchicalSelect" AS "funcRoleHierSelect" ON ("funcRoleHierSelect"."ParentRoleId" = "PriorLevel"."Id")
),
"DependentUserSelect" AS (
SELECT
"mainSelect"."Id" "Id",
"mainSelect"."Name" "Name",
"mainSelect"."ParentRoleId" "ParentRoleId",
0 "Level"
FROM
"MainSelect" AS "mainSelect"
INNER JOIN "SysUserInRole" AS "userInRole"
ON "mainSelect"."Id" = "userInRole"."SysUserId"
INNER JOIN "ChiefUnitsSelect" AS "AllUnits"
ON "AllUnits"."Id" = "userInRole"."SysRoleId"
WHERE
NOT EXISTS (
SELECT
"UserUnits"."Id"
FROM "ChiefUnitsSelect" AS "UserUnits"
INNER JOIN "SysUserInRole" AS "UserInRole"
ON "UserUnits"."Id" = "UserInRole"."SysRoleId"
INNER JOIN "SysAdminUnit" AS "sau"
ON "sau"."Id" = "UserUnits"."Id"
WHERE "sau"."SysAdminUnitTypeValue" = 2
AND "UserInRole"."SysUserId" = UserId
AND "UserUnits"."Id" = "AllUnits"."Id")
)
INSERT INTO "AdminUnitList" ("Id", "Name", "ParentRoleId", "Granted", "Level")
SELECT DISTINCT
"AdminUnitList"."Id",
"AdminUnitList"."Name",
"AdminUnitList"."ParentRoleId",
IsGranted,
NestLevel
FROM (
SELECT
"HierarchicalSelect"."Id",
"HierarchicalSelect"."Name",
"HierarchicalSelect"."ParentRoleId"
FROM "HierarchicalSelect"
UNION ALL
SELECT
"SysAdminUnit"."Id",
"SysAdminUnit"."Name",
"SysAdminUnit"."ParentRoleId"
FROM "SysAdminUnit"
WHERE
"SysAdminUnit"."Id" = UserId
UNION ALL
SELECT
"FuncRoleHierarchicalSelect"."Id",
"FuncRoleHierarchicalSelect"."Name",
"FuncRoleHierarchicalSelect"."ParentRoleId"
FROM "FuncRoleHierarchicalSelect"
UNION ALL
SELECT
"DependentUserSelect"."Id",
"DependentUserSelect"."Name",
"DependentUserSelect"."ParentRoleId"
FROM "DependentUserSelect"
) AS "AdminUnitList";
DependentUsersList := 'DependentUsersList' || NestLevel ;
FOR DependentUser IN DependentUsersList LOOP
EXIT WHEN DependentUser = NULL;
DependentUserId = DependentUser."Id";
PERFORM "tsp_GetAdminUnitList"(DependentUserId, 1, NestLevel + 1);
END LOOP;
GetGrantorSysAdminUnitList := 'GetGrantorSysAdminUnitList' || NestLevel ;
FOR GrantorSysAdminUnit IN GetGrantorSysAdminUnitList LOOP
EXIT WHEN GrantorSysAdminUnit = NULL;
GrantorSysAdminUnitId = GrantorSysAdminUnit."Id";
PERFORM "tsp_GetAdminUnitList"(GrantorSysAdminUnitId, 1, NestLevel + 1);
END LOOP;
IF NestLevel = 0 THEN
RETURN QUERY
SELECT "QQ"."Id",
"QQ"."Name",
"QQ"."ParentRoleId"
FROM (
SELECT DISTINCT
"AdminUnitList"."Id",
"AdminUnitList"."Name",
"AdminUnitList"."ParentRoleId",
"sau"."SysAdminUnitTypeValue"
FROM "AdminUnitList"
INNER JOIN "SysAdminUnit" AS "sau" ON "sau"."Id" = "AdminUnitList"."Id") AS "QQ"
ORDER BY "QQ"."SysAdminUnitTypeValue" DESC;
END IF;
END;
$$ LANGUAGE plpgsql;
Example 5 (stored procedures)
Example
Example of a stored procedure that uses exception handling and executes a custom script.
-- Stored procedure that uses exception handling and executes a custom script
-- MSSQL
IF EXISTS (SELECT * FROM sys.objects WHERE object_id = OBJECT_ID(N'[dbo].[tsp_CanConvertData]') AND type IN (N'P', N'PC'))
DROP PROCEDURE [dbo].[tsp_CanConvertData]
GO
CREATE PROCEDURE [dbo].[tsp_CanConvertData]
@EntitySchemaName SYSNAME,
@SourceColumnName SYSNAME,
@NewColumnDataType SYSNAME,
@Result BIT OUT
AS
BEGIN
SET NOCOUNT ON
SET @Result = 0
DECLARE @sql NVARCHAR(MAX)
DECLARE @unicodeCharLength INT = 2
DECLARE @dataTypeName SYSNAME
DECLARE @dataTypeSize INT
DECLARE @dataTypePrecision INT
SELECT
@dataTypeName = UPPER(DATA_TYPE),
@dataTypeSize =
CASE
WHEN CHARACTER_MAXIMUM_LENGTH IS NULL THEN NUMERIC_PRECISION
ELSE CHARACTER_MAXIMUM_LENGTH
END,
@dataTypePrecision = ISNULL(NUMERIC_SCALE, 0)
FROM INFORMATION_SCHEMA.COLUMNS
WHERE TABLE_NAME = @EntitySchemaName
AND COLUMN_NAME = @SourceColumnName
IF (@dataTypeName IS NULL)
BEGIN
RETURN
END
DECLARE @newDataTypeName SYSNAME
DECLARE @newDataTypeSize INT
DECLARE @newDataTypePrecision INT
DEClARE @i INT
DECLARE @newDataTypeSizeDefinition NVARCHAR(MAX)
SET @i = CHARINDEX('(', @NewColumnDataType)
IF (@i = 0)
BEGIN
SET @newDataTypeName = @NewColumnDataType
SET @newDataTypeSize = 0
SET @newDataTypePrecision = 0
END ELSE
BEGIN
SET @newDataTypeName = UPPER(LTRIM(RTRIM(SUBSTRING(@NewColumnDataType, 1, @i - 1))))
SET @newDataTypeSizeDefinition = LTRIM(RTRIM(SUBSTRING(@NewColumnDataType, @i + 1,
LEN(@NewColumnDataType))))
SET @i = CHARINDEX(')', @newDataTypeSizeDefinition)
IF (@i > 0)
BEGIN
SET @newDataTypeSizeDefinition = LTRIM(RTRIM(SUBSTRING(@newDataTypeSizeDefinition, 1, @i - 1)))
END
SET @i = CHARINDEX(',', @newDataTypeSizeDefinition)
IF (@i > 0)
BEGIN
SET @newDataTypeSize = CAST(LTRIM(RTRIM(SUBSTRING(@newDataTypeSizeDefinition, 1, @i - 1))) AS INT)
SET @newDataTypePrecision = CAST(LTRIM(RTRIM(SUBSTRING(@newDataTypeSizeDefinition, @i + 1,
LEN(@newDataTypeSizeDefinition)))) AS INT)
END ELSE
BEGIN
SET @newDataTypePrecision = 0
IF (UPPER(@newDataTypeSizeDefinition) = 'MAX')
BEGIN
SET @newDataTypeSize = -1
END ELSE
BEGIN
SET @newDataTypeSize = CAST(@newDataTypeSizeDefinition AS INT)
END
END
END
DECLARE @ImplicitDataConvertTable TABLE (
SourceDataType SYSNAME,
DestinationDataType SYSNAME
)
INSERT INTO @ImplicitDataConvertTable
SELECT 'INT', 'INT'
UNION ALL
SELECT 'INT', 'BIT'
UNION ALL
SELECT 'INT', 'DECIMAL'
UNION ALL
SELECT 'INT', 'VARCHAR'
UNION ALL
SELECT 'INT', 'NVARCHAR'
UNION ALL
SELECT 'INT', 'VARBINARY'
UNION ALL
SELECT 'BIT', 'BIT'
UNION ALL
SELECT 'BIT', 'INT'
UNION ALL
SELECT 'BIT', 'DECIMAL'
UNION ALL
SELECT 'BIT', 'VARCHAR'
UNION ALL
SELECT 'BIT', 'NVARCHAR'
UNION ALL
SELECT 'BIT', 'VARBINARY'
UNION ALL
SELECT 'DECIMAL', 'BIT'
UNION ALL
SELECT 'UNIQUEIDENTIFIER', 'UNIQUEIDENTIFIER'
UNION ALL
SELECT 'UNIQUEIDENTIFIER', 'VARBINARY'
UNION ALL
SELECT 'VARCHAR', 'INT'
UNION ALL
SELECT 'VARCHAR', 'BIT'
UNION ALL
SELECT 'VARCHAR', 'UNIQUEIDENTIFIER'
UNION ALL
SELECT 'DATETIME2', 'DATETIME2'
UNION ALL
SELECT 'DATETIME2', 'DATE'
UNION ALL
SELECT 'DATETIME2', 'TIME'
UNION ALL
SELECT 'DATETIME2', 'VARCHAR'
UNION ALL
SELECT 'DATE', 'DATE'
UNION ALL
SELECT 'DATE', 'DATETIME2'
UNION ALL
SELECT 'DATE', 'VARCHAR'
UNION ALL
SELECT 'DATE', 'NVARCHAR'
UNION ALL
SELECT 'TIME', 'TIME'
UNION ALL
SELECT 'TIME', 'DATETIME2'
UNION ALL
SELECT 'TIME', 'VARCHAR'
UNION ALL
SELECT 'TIME', 'NVARCHAR'
UNION ALL
SELECT 'VARBINARY', 'INT'
UNION ALL
SELECT 'VARBINARY', 'BIT'
UNION ALL
SELECT 'VARBINARY', 'UNIQUEIDENTIFIER'
IF EXISTS(SELECT * FROM @ImplicitDataConvertTable
WHERE SourceDataType = @dataTypeName AND DestinationDataType = @newDataTypeName)
BEGIN
SET @Result = 1
RETURN
END
DECLARE @ImplicitDataOverflowConvertTable TABLE (
SourceDataType SYSNAME,
DestinationDataType SYSNAME
)
INSERT INTO @ImplicitDataOverflowConvertTable
SELECT 'DECIMAL', 'INT'
UNION ALL
SELECT 'DECIMAL', 'DECIMAL'
UNION ALL
SELECT 'DECIMAL', 'VARCHAR'
UNION ALL
SELECT 'DECIMAL', 'NVARCHAR'
UNION ALL
SELECT 'DECIMAL', 'VARBINARY'
UNION ALL
SELECT 'UNIQUEIDENTIFIER', 'VARCHAR'
UNION ALL
SELECT 'UNIQUEIDENTIFIER', 'NVARCHAR'
UNION ALL
SELECT 'VARCHAR', 'INT'
UNION ALL
SELECT 'VARCHAR', 'BIT'
UNION ALL
SELECT 'VARCHAR', 'DECIMAL'
UNION ALL
SELECT 'VARCHAR', 'VARCHAR'
UNION ALL
SELECT 'VARCHAR', 'NVARCHAR'
UNION ALL
SELECT 'NVARCHAR', 'INT'
UNION ALL
SELECT 'NVARCHAR', 'BIT'
UNION ALL
SELECT 'NVARCHAR', 'DECIMAL'
UNION ALL
SELECT 'NVARCHAR', 'VARCHAR'
UNION ALL
SELECT 'NVARCHAR', 'NVARCHAR'
UNION ALL
SELECT 'VARBINARY', 'VARCHAR'
UNION ALL
SELECT 'VARBINARY', 'NVARCHAR'
UNION ALL
SELECT 'VARBINARY', 'VARBINARY'
IF EXISTS(SELECT * FROM @ImplicitDataOverflowConvertTable
WHERE SourceDataType = @dataTypeName AND DestinationDataType = @newDataTypeName)
BEGIN
SET @sql = N'IF EXISTS(SELECT * FROM [' + @EntitySchemaName + ']) SET @Result = 0 ELSE SET @Result = 1'
EXEC sp_executesql @sql, N'@Result BIT OUT', @Result = @Result OUT
IF (@Result = 1)
BEGIN
RETURN
END
BEGIN TRY
IF (@dataTypeName = 'DECIMAL' AND @newDataTypeName = 'INT') OR
(@dataTypeName = 'DECIMAL' AND @newDataTypeName = 'VARCHAR') OR
(@dataTypeName = 'DECIMAL' AND @newDataTypeName = 'NVARCHAR') OR
(@dataTypeName = 'DECIMAL' AND @newDataTypeName = 'VARBINARY') OR
(@dataTypeName = 'DECIMAL' AND @newDataTypeName = 'DECIMAL')
BEGIN
DECLARE @cnt INT
DECLARE @ConvertDescription NVARCHAR(MAX)
SET @ConvertDescription = 'CONVERT(' + @NewColumnDataType +', [' + @SourceColumnName+ '])'
SET @sql = N'IF EXISTS(SELECT * FROM [' + @EntitySchemaName + '] WHERE ' +
@ConvertDescription + ' = ' + @ConvertDescription + ') SET @cnt = 1 ELSE SET @cnt = 0'
EXEC sp_executesql @sql, N'@cnt INT OUT', @cnt = @cnt OUT
SET @Result = 1
END ELSE
BEGIN
DECLARE @dl INT
SET @sql = N'SELECT @dl = MAX(DATALENGTH([' + @SourceColumnName + '])) ' +
'FROM [' + @EntitySchemaName + ']'
EXEC sp_executesql @sql, N'@dl INT OUT', @dl = @dl OUT
IF (@newDataTypeName IN ('VARCHAR', 'NVARCHAR', 'VARBINARY') AND @newDataTypeSize = -1)
BEGIN
SET @Result = 1
END ELSE
IF (@dl <= @newDataTypeSize OR (
@newDataTypeName IN ('NVARCHAR', 'NCHAR') AND (@dl / @unicodeCharLength) <= @newDataTypeSize))
BEGIN
SET @Result = 1
END ELSE
BEGIN
SET @Result = 0
END
END
END TRY
BEGIN CATCH
SET @Result = 0
END CATCH
END ELSE
BEGIN
SET @Result = 0
END
END
GO
-- Stored procedure that uses exception handling and executes a custom scrip
-- PostgreSQL
DROP FUNCTION IF EXISTS public."tsp_CanConvertData" CASCADE;
CREATE FUNCTION public."tsp_CanConvertData"(
EntitySchemaName NAME,
SourceColumnName NAME,
NewColumnDataType NAME,
CanConvert OUT BOOLEAN)
AS $BODY$
DECLARE
dataTypeName NAME;
newDataTypeName NAME;
newDataTypeSize INTEGER;
countRow INTEGER;
dataLength INTEGER;
convertDescription TEXT;
unicodeCharLength INTEGER = 2;
sqlQuery TEXT;
castQuery TEXT;
BEGIN
CanConvert = FALSE;
dataTypeName = (
SELECT UPPER(data_type) FROM information_schema.columns
WHERE table_name = EntitySchemaName AND column_name = SourceColumnName);
IF dataTypeName IS NULL THEN
RETURN;
END IF;
SELECT "fn_ParseDataType".DataTypeName, "fn_ParseDataType".DataTypeSize
FROM public."fn_ParseDataType"(NewColumnDataType)
INTO newDataTypeName, newDataTypeSize;
DROP TABLE IF EXISTS "NotConvertTable";
CREATE TEMP TABLE "NotConvertTable" (
SourceDataType NAME,
DestinationDataType NAME
);
INSERT INTO "NotConvertTable" VALUES
('INTEGER', 'UUID'),
('INTEGER', 'TIMESTAMP WITHOUT TIME ZONE'),
('INTEGER', 'DATE'),
('INTEGER', 'TIME WITHOUT TIME ZONE'),
('NUMERIC', 'UUID'),
('NUMERIC', 'TIMESTAMP WITHOUT TIME ZONE'),
('NUMERIC', 'DATE'),
('NUMERIC', 'TIME WITHOUT TIME ZONE'),
('BOOLEAN', 'UUID'),
('BOOLEAN', 'TIMESTAMP WITHOUT TIME ZONE'),
('BOOLEAN', 'DATE'),
('BOOLEAN', 'TIME WITHOUT TIME ZONE'),
('UUID', 'INTEGER'),
('UUID', 'NUMERIC'),
('UUID', 'BOOLEAN'),
('UUID', 'TIMESTAMP WITHOUT TIME ZONE'),
('UUID', 'DATE'),
('UUID', 'TIME WITHOUT TIME ZONE'),
('TIMESTAMP WITHOUT TIME ZONE', 'INTEGER'),
('TIMESTAMP WITHOUT TIME ZONE', 'NUMERIC'),
('TIMESTAMP WITHOUT TIME ZONE', 'BOOLEAN'),
('TIMESTAMP WITHOUT TIME ZONE', 'UUID'),
('DATE', 'INTEGER'),
('DATE', 'NUMERIC'),
('DATE', 'BOOLEAN'),
('DATE', 'UUID'),
('DATE', 'TIME WITHOUT TIME ZONE'),
('TIME WITHOUT TIME ZONE', 'INTEGER'),
('TIME WITHOUT TIME ZONE', 'NUMERIC'),
('TIME WITHOUT TIME ZONE', 'BOOLEAN'),
('TIME WITHOUT TIME ZONE', 'UUID'),
('TIME WITHOUT TIME ZONE', 'DATE');
IF EXISTS(SELECT SourceDataType, DestinationDataType FROM "NotConvertTable"
WHERE SourceDataType = dataTypeName AND DestinationDataType = newDataTypeName) THEN
RETURN;
END IF;
DROP TABLE IF EXISTS ImplicitDataConvertTable;
CREATE TEMP TABLE ImplicitDataConvertTable (
SourceDataType NAME,
DestinationDataType NAME
);
INSERT INTO ImplicitDataConvertTable VALUES
('INTEGER', 'INTEGER'),
('INTEGER', 'NUMERIC'),
('INTEGER', 'BOOLEAN'),
('INTEGER', 'CHARACTER VARYING'),
('INTEGER', 'TEXT'),
('NUMERIC', 'CHARACTER VARYING'),
('NUMERIC', 'TEXT'),
('BOOLEAN', 'INTEGER'),
('BOOLEAN', 'BOOLEAN'),
('BOOLEAN', 'CHARACTER VARYING'),
('BOOLEAN', 'TEXT'),
('CHARACTER VARYING', 'TEXT'),
('CHARACTER VARYING', 'BYTEA'),
('TEXT', 'TEXT'),
('TEXT', 'BYTEA'),
('BYTEA', 'BYTEA'),
('UUID', 'CHARACTER VARYING'),
('UUID', 'TEXT'),
('UUID', 'UUID'),
('TIMESTAMP WITHOUT TIME ZONE', 'CHARACTER VARYING'),
('TIMESTAMP WITHOUT TIME ZONE', 'TEXT'),
('TIMESTAMP WITHOUT TIME ZONE', 'TIMESTAMP WITHOUT TIME ZONE'),
('DATE', 'CHARACTER VARYING'),
('DATE', 'TEXT'),
('DATE', 'TIMESTAMP WITHOUT TIME ZONE'),
('DATE', 'DATE'),
('TIME WITHOUT TIME ZONE', 'CHARACTER VARYING'),
('TIME WITHOUT TIME ZONE', 'TEXT'),
('TIME WITHOUT TIME ZONE', 'TIMESTAMP WITHOUT TIME ZONE'),
('TIME WITHOUT TIME ZONE', 'TIME WITHOUT TIME ZONE'),
('TIMESTAMP WITHOUT TIME ZONE', 'DATE'),
('TIMESTAMP WITHOUT TIME ZONE', 'TIME WITHOUT TIME ZONE'),
('INTEGER', 'BYTEA'),
('NUMERIC', 'BOOLEAN'),
('NUMERIC', 'BYTEA'),
('BOOLEAN', 'NUMERIC'),
('BOOLEAN', 'BYTEA'),
('UUID', 'BYTEA'),
('TIMESTAMP WITHOUT TIME ZONE', 'BYTEA'),
('DATE', 'BYTEA'),
('TIME WITHOUT TIME ZONE', 'BYTEA'),
('NUMERIC', 'INTEGER'),
('NUMERIC', 'NUMERIC');
IF EXISTS(SELECT SourceDataType, DestinationDataType FROM ImplicitDataConvertTable
WHERE SourceDataType = dataTypeName AND DestinationDataType = newDataTypeName) THEN
CanConvert = TRUE;
RETURN;
END IF;
EXECUTE FORMAT('SELECT count(*) FROM %1$I', EntitySchemaName) INTO countRow;
CanConvert = (countRow = 0);
IF CanConvert THEN
RETURN;
END IF;
DROP TABLE IF EXISTS "ExplicitDataConvertTable";
CREATE TEMP TABLE "ExplicitDataConvertTable" (
SourceDataType NAME,
DestinationDataType NAME
);
INSERT INTO "ExplicitDataConvertTable" VALUES
('CHARACTER VARYING', 'INTEGER'),
('CHARACTER VARYING', 'NUMERIC'),
(