Question

我有一个带有PersonHistory的临时表Person。

Collumns：[Id]，[Name]，[DepartmentId]，[ModifiedBy]，[SysStartTime]和[SysEndTime]。

在物理上删除一行时，我想继续删除ModifiedBy中的行，而不向PersonHistory添加2行。

关于如何实现这一目标的任何想法？

感谢。

Answer 1

它可以做但但有点hacky。此外，您将丢失将行更改为当前状态的人员的历史记录（EG：user1创建名称为＆＃39; jams＆＃39;。user2将名称更改为＆＃39; james＆＃39;。用户3已删除在历史记录中，您不会看到用户2从“jams＆＃39; james”中进行编辑，只是用户3删除了该行名字＆＃39; james＆＃39;）所以你的审计线索有点失落

这可能会在触发器中起作用，我不确定，但如果您将有关表的删除操作限制为SPROC，则可以这样做：

CREATE PROC [People].[Person_Delete]
(
    @Id INT,
    @DeletedBy VARCHAR(255)
)
AS
BEGIN
    BEGIN TRY
        BEGIN TRANSACTION

            --===========================================================================================
            --TURN OFF SYSTEM VERSIONING FOR THE TARGET TABLE
            --===========================================================================================
            IF (SELECT temporal_type FROM sys.tables WHERE object_id = OBJECT_ID('People.Person', 'U')) = 2
            BEGIN
                EXEC(N'
                    PRINT(''Deactivating SYSTEM_VERSIONING for People.Person...'')
                    ALTER TABLE People.Person
                    SET (SYSTEM_VERSIONING = OFF)
                    ALTER TABLE People.Person
                    DROP PERIOD FOR SYSTEM_TIME
                ')
            END

            --===========================================================================================
            --UPDATE THE ModifiedBy VALUE
            --===========================================================================================

            UPDATE People.Person
            SET ModifiedBy = @DeletedBy
            WHERE Id = @Id

            --===========================================================================================
            --TURN ON SYSTEM VERSIONING FOR THE TARGET TABLE
            --===========================================================================================
            IF (SELECT temporal_type FROM sys.tables WHERE object_id = OBJECT_ID('People.Person', 'U')) = 0 
            BEGIN 
                EXEC(N' 
                    PRINT(''Activating SYSTEM_VERSIONING for People.Person...'') 
                    ALTER TABLE People.Person 
                    ADD PERIOD FOR SYSTEM_TIME (SysStartTime, SysEndTime) 
                    ALTER TABLE People.Person 
                    SET (SYSTEM_VERSIONING = ON (HISTORY_TABLE=People.PersonHistory, DATA_CONSISTENCY_CHECK=ON)) 
                ')
            END

            --===========================================================================================
            --DELETE THE RECORD
            --===========================================================================================
            DELETE People.Person
            WHERE Id = @Id

        COMMIT TRANSACTION
    END TRY
    BEGIN CATCH
        IF @@TRANCOUNT > 0
            ROLLBACK TRANSACTION

        ;THROW;
    END CATCH
END

更新时态表而不更新历史记录

1 个答案: