sql-server - 合并声明和身份插入

Question

我正在使用 Merge 语句在存储过程中插入/更新数据。

MERGE [dbo].[tReserveData_4541] AS Target
USING (SELECT * FROM  [dbo].[tblcangrowhitesh]) AS Source
ON ( [Source].[PK_ID] =  [Target].[PK_ID])

WHEN MATCHED THEN
    UPDATE SET [Target].[mgender] = Source.[mgender]

WHEN NOT MATCHED BY TARGET THEN
    INSERT ([Granularity], [PK_ID], [ROWID], 
            [mgender], [mma1], [mma2], [mma3], 
            [mmadmincost], [mmcumulativevolume], 
            [mmcurrency], [mmdate],
            [mmfileimporteddate], [mmfilename])
    VALUES ([Source].[Granularity], [Source].[PK_ID], [Source].[ROWID],
            [Source].[mgender], [Source].[mma1], [Source].[mma2], [Source].[mma3], 
            [Source].[mmadmincost], [Source].[mmcumulativevolume],
            [Source].[mmcurrency], [Source].[mmdate],
            [Source].[mmfileimporteddate], [Source].[mmfilename])

如您所见，我将在 MERGE 语句中插入标识列，即 [PK_ID]。但我做不到。

Answer 1

我不太熟悉 MERGE命令，但是当您直接插入到标识列中时，是否不必使用 IDENTITY_INSERT 命令？例如

SET IDENTITY_INSERT [dbo].[tReserveData_4541] on

MERGE...

SET IDENTITY_INSERT [dbo].[tReserveData_4541] off