SQL 服务器中的安全 move/archive 行

Question

我有这个SQL-script/sp

    BEGIN TRAN
    BEGIN TRY
      INSERT INTO TblDest
      SELECT * FROM TblSource
      DELETE FROM TblSource
      COMMIT TRAN
    END TRY
    BEGIN CATCH
       ROLLBACK TRAN
    END CATCH

它将 TblSource 中的所有行移动到 TblDest。我想确保在完成此备份时插入的任何行都保留在 TblSource 中。

如果我在 DELETE 行之前设置一个断点并打开另一个 window 并在 TestSource 中插入一个新行，然后完成脚本，新行将被删除。

我需要一个 Temp-table 还是我可以锁定整个 table？

Answer 1

您可以尝试如下查询。

  BEGIN TRAN
        BEGIN TRY
          INSERT INTO TblDest SELECT * FROM TblSource
          DELETE FROM TblSource where [SomeId] in (select id from TblDest)
          COMMIT TRAN
        END TRY
        BEGIN CATCH
           ROLLBACK TRAN
        END CATCH

Answer 2

您可以使用 HOLDLOCK 提示：

INSERT INTO TblDest
      SELECT * FROM TblSource WITH (HOLDLOCK)
      DELETE FROM TblSource

HOLDLOCK Is equivalent to SERIALIZABLE. HOLDLOCK applies only to the table or view for which it is specified and only for the duration of the transaction defined by the statement that it is used in. HOLDLOCK cannot be used in a SELECT statement that includes the FOR BROWSE option.

来自 MSDN：Table hints

SQL 服务器中的安全 move/archive 行

Safely move/archive Rows in SQL Server

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