存储过程的递归中使用游标的冲突问题解决方法

-- =============================================
-- Author:    徐昌煜
-- Create date:   2006-9-16
-- Description:  物料非法递归检查，调用了P_USE_ISSUBPARTRECURSION_XU
-- =============================================
ALTER PROCEDURE dbo.P_ISSUBPARTRECURSION_XU
@MAINPARTID VARCHAR(20)='',@SUBPARTID VARCHAR(20)='',@ISRECURSION BIT OUTPUT
AS
BEGIN
 DECLARE @SUBPARTID_TEMP VARCHAR(20),@RECORDNUM INT,@ID INT
 IF @MAINPARTID=@SUBPARTID
 BEGIN
  SET @ISRECURSION=1
  RETURN 1
 END
 ELSE
 BEGIN
  SELECT * FROM DesignBOMDetail WHERE MainPartID=@SUBPARTID
  SELECT @RECORDNUM=@@ROWCOUNT
  IF @RECORDNUM=0
  BEGIN
   SET @ISRECURSION=0
   RETURN 0
  END
  ELSE 
  BEGIN
   DECLARE @MAIN_CUR CURSOR 字串8
   EXECUTE P_USE_ISSUBPARTRECURSION_XU @SUBPARTID,@MAIN_CUR OUTPUT
    FETCH NEXT FROM @MAIN_CUR INTO @ID
    WHILE @@FETCH_STATUS=0
    BEGIN
     SELECT @SUBPARTID_TEMP=SubPartID FROM DesignBOMDetail WHERE ID=@ID
     IF @SUBPARTID_TEMP=@MAINPARTID
     BEGIN
      SET @ISRECURSION=1
      RETURN 1
     END
     ELSE
     BEGIN
      EXECUTE P_ISSUBPARTRECURSION_XU @MAINPARTID,@SUBPARTID_TEMP,@ISRECURSION
      IF @ISRECURSION=1
      BEGIN
       RETURN 1
      END
     END
     FETCH NEXT FROM @MAIN_CUR INTO @ID 字串8
    END
  END
   END
   SET @ISRECURSION=0
   RETURN 0
END
-- =============================================
-- Author:    徐昌煜
-- Create date:   2006-9-16
-- Description:   使用P_ISSUBPARTRECURSION_XU时，生成游标。
-- =============================================
ALTER PROCEDURE dbo.P_USE_ISSUBPARTRECURSION_XU
@SUBPARTID VARCHAR(20)='',@TEMP_CURSOR CURSOR VARYING OUTPUT
AS
BEGIN
 SET @TEMP_CURSOR=CURSOR LOCAL FOR SELECT ID FROM DesignBOMDetail WHERE MainPartID=@SUBPARTID
 OPEN @TEMP_CURSOR
END
 /* SET NOCOUNT ON */
 RETURN