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  • 触发器操作:在触发器中嵌套多个游标

     1if exists(select name from sysobjects where name='Insert_PicType_T07_Trig' and type='TR')
     2DROP TRIGGER Insert_PicType_T07_Trig
     3go
     4
     5CREATE TRIGGER Insert_PicType_T07_Trig ON  PicType_T07
     6FOR INSERT 
     7AS
     8BEGIN
     9   print '开始响应'
    10   DECLARE @PicType_id int,@PicRightsType_id bigint       --图片类型ID,更新浏览图片权限类型ID
    11   DECLARE PicTypeId_cursor CURSOR FOR 
    12     SELECT  RT07F01
    13     FROM INSERTED
    14   OPEN PicTypeId_cursor
    15   FETCH NEXT FROM PicTypeId_cursor 
    16   INTO @PicType_id
    17   WHILE @@FETCH_STATUS = 0
    18 BEGIN
    19   -- 声明嵌套的游标
    20   -- 从嵌套的游标取出另一个表(PicRightsType)的不重复的权限类型ID
    21   DECLARE PicRightsTypeID_cursor CURSOR FOR 
    22   SELECT distinct(RT16F01)
    23   FROM   PicRightsType_T16
    24   --打开游标
    25   OPEN PicRightsTypeID_cursor
    26   FETCH NEXT FROM PicRightsTypeID_cursor INTO @PicRightsType_id
    27   IF @@FETCH_STATUS <> 0 
    28      PRINT 'No ID'     
    29   WHILE @@FETCH_STATUS = 0
    30   BEGIN
    31      INSERT INTO PicRightsType_T16(RT16F01,RT16F02) VALUES(@PicRightsType_id,@PicType_id)
    32      FETCH NEXT FROM PicRightsTypeID_cursor INTO @PicRightsType_id
    33   END
    34   CLOSE PicRightsTypeID_cursor
    35   DEALLOCATE PicRightsTypeID_cursor
    36   
    37   -- Get the next PicTypeId.
    38   FETCH NEXT FROM PicTypeId_cursor 
    39   INTO @PicType_id
    40 END
    41 CLOSE PicTypeId_cursor 
    42 DEALLOCATE PicTypeId_cursor 
    43END
    44GO
    45
    46
    47--INSERT INTO PICTYPE_T07(RT07F02,RT07F03)VALUES('frj照片','1')   
    48
    49
    1CREATE TRIGGER CheckDate4 ON cardtype_t11
    2FOR update
    3AS
    4begin
    5print 'hao'
    6SELECT * FROM inserted
    7ROLLBACK  //回滚刚才的操作
    8end
    9drop trigger CheckDate4
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  • 原文地址:https://www.cnblogs.com/furenjun/p/293694.html
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