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I used SSMA v6.0 for migrating my Oracle database to SQL Server 2014.

I turned off the generation of ROWID column and as expected it did not generate any additional ROWID column in any of my tables after conversion, but surprisingly it DID generate all the triggers associated with their respective tables with ROWID column infused in triggers like following:

USE [DBName]
GO
/****** Object:  Trigger [dbo].[InsteadOfInsertOn$ROLEPERMISSIONS]    Script Date: 3/11/2015 10:58:46 AM ******/
SET ANSI_NULLS ON
GO
SET QUOTED_IDENTIFIER ON
GO
ALTER TRIGGER [dbo].[InsteadOfInsertOn$ROLEPERMISSIONS]
   ON [dbo].[ROLEPERMISSIONS]
    INSTEAD OF INSERT
      AS 
         /*Generated by SQL Server Migration Assistant for Oracle version 6.0.0.*/
         BEGIN

        SET  NOCOUNT  ON

        DECLARE
           @triggerType char(1)

        SELECT @triggerType = 'I'

        /* column variables declaration*/
        DECLARE
           @new$0 uniqueidentifier, 
           @new$ROLEID decimal, 
           @new$MODULES_ACTIONSID decimal, 
           @new$ROLEPERMISSIONID decimal

        /* 
        *   SSMA error messages:
        *   O2SS0239: ROWID column is not accessible because the 'Generate ROWID' project setting is disabled.

        DECLARE
            ForEachInsertedRowTriggerCursor CURSOR LOCAL FORWARD_ONLY READ_ONLY FOR 
              SELECT ROWID, ROLEID, MODULES_ACTIONSID, ROLEPERMISSIONID
              FROM inserted            */


        /* 
        *   SSMA error messages:
        *   O2SS0174: The declaration of the identifier 'ForEachInsertedRowTriggerCursor' was converted with error(s).

        OPEN ForEachInsertedRowTriggerCursor            */

        /* 
        *   SSMA error messages:
        *   O2SS0174: The declaration of the identifier 'ForEachInsertedRowTriggerCursor' was converted with error(s).

        FETCH ForEachInsertedRowTriggerCursor
            INTO @new$0, @new$ROLEID, @new$MODULES_ACTIONSID, @new$ROLEPERMISSIONID            */

        WHILE @@fetch_status = 0
        BEGIN
              /* row-level triggers implementation: begin*/
              BEGIN
                 BEGIN
                    IF @triggerType = 'I'
                       SELECT @new$ROLEPERMISSIONID = NEXT VALUE FOR dbo.SEQ_ROLEPERMISSIONS
                 END
              END
              /* row-level triggers implementation: end*/

              /* 
              *   SSMA error messages:
              *   O2SS0239: ROWID column is not accessible because the 'Generate ROWID' project setting is disabled.

              /-* DML-operation emulation*-/
              INSERT dbo.ROLEPERMISSIONS(ROWID, ROLEID, MODULES_ACTIONSID, ROLEPERMISSIONID)
                 VALUES (@new$0, @new$ROLEID, @new$MODULES_ACTIONSID, @new$ROLEPERMISSIONID)                  */



              /* 
              *   SSMA error messages:
              *   O2SS0174: The declaration of the identifier 'ForEachInsertedRowTriggerCursor' was converted with error(s).

              FETCH ForEachInsertedRowTriggerCursor
                  INTO @new$0, @new$ROLEID, @new$MODULES_ACTIONSID, @new$ROLEPERMISSIONID                  */

           END

        /* 
        *   SSMA error messages:
        *   O2SS0174: The declaration of the identifier 'ForEachInsertedRowTriggerCursor' was converted with error(s).

        CLOSE ForEachInsertedRowTriggerCursor            */

        /* 
        *   SSMA error messages:
        *   O2SS0174: The declaration of the identifier 'ForEachInsertedRowTriggerCursor' was converted with error(s).

        DEALLOCATE ForEachInsertedRowTriggerCursor            */
     END

The problems, in brief, are that

  1. after turning off ROWID column generation it DID NOT create any ROWID column in any table which is exactly required

  2. But it did create all triggers with as if ROWID column was there in table.

  3. And yes it generated trigger with commenting all queries that was expecting a ROWID ... (as you can see from sample stored procedure)

Is there any other way/option we have to Turn off the generation of ROWID from triggers too ?

4

1 回答 1

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您在 Oracle 中的触发器是FOR EACH ROW. SQL Server 不直接支持这种类型的触发器。因此 SSMA 使用INSTEAD OFtrigger 和 loop over为它们应用模板替换inserted。

您是否可以至少为带有触发器的表启用 ROWID（转换设置中的选项“为带有触发器的表添加 ROWID 列”）？SSMA 不支持在没有它的情况下自动转换此类触发器，否则您可能必须手动修改转换后的触发器。（这就是为什么它仍然尝试尽可能多地转换但留下对丢失的 ROWID 列的访问被注释掉 - 因此您可以手动完成转换）。

于 2015-03-15T23:55:36.183 回答