DECLARE @SQL NVARCHAR(4000);
DECLARE @ANAME VARCHAR(500);
DECLARE LC_CURSOR CURSOR FOR
SELECT NAME FROM SYSOBJECTS WHERE TYPE = 'U';
OPEN  LC_CURSOR
  --遍历表
FETCH NEXT FROM LC_CURSOR INTO @ANAME
 WHILE(@@FETCH_STATUS=0)
 BEGIN
  --PRINT @ANAME
  PRINT 'SET IDENTITY_INSERT '+@ANAME+' on';
  --PRINT 'SET IDENTITY_INSERT '+@ANAME+' off';
  FETCH NEXT FROM LC_CURSOR INTO @ANAME
 END

CLOSE LC_CURSOR
DEALLOCATE LC_CURSOR