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jiang jie Microsoft SQL Server de xing shi chu fa qi

2008-07-11 05:57:45 编辑來源:互联网 评论
 
本文为【讲解Microsoft SQL Server的行式触发器】的拼音翻译版
  zeng jing yi wei SQL SERVER de chu fa qi zhi neng chu fa dan xing , ye jiu shi shuo ru guo yi ge delete chu fa qi , ru guo tong shi shan chu duo xing shi , zhi hui dui di yi tiao ji lu chu fa , hou lai fa xian le bu shi ren jia SQL SERVER bu zhi chi , er shi ou nao zi ben mei fa xian 。
  qi shi inserted he deleted liang zhang nei bu biao cun fang le suo you yao cha ru huo yao shan chu de ji lu , ke yi yong cursor zhu ci fang wen li mian de mei tiao ji lu , xia mian shi yi ge shi li , gai chu fa qi jiang yao shan chu de ji lu zhuan yi dao ling yi zhang biao zhong :
  di yi bu , chuang jian zhe liang zhang biao
  create table table1([id] int primary key, [value] varchar(100))create table table2([id] int primary key, [value] varchar(100))
  di er bu , cha ru ce shi shu ju
  declare @i intset @i = 1while @i <= 100begin insert into table1([id], [value]) values(@i, cast(@i as varchar)) set @i = @i + 1end
  chuang jian table1 de delete chu fa qi
  create trigger tr_d_table1 on table1 for deleteasbegin declare @id int, @value varchar(100) declare cur_del cursor local forward_only for select [id], [value] from deleted open cur_del fetch next from cur_del into @id, @value while @@fetch_status = 0 begin insert into table2([id], [value]) values(@id, @value) fetch next from cur_del into @id, @value end close cur_del deallocate cur_del end
  xian zai dui table1 zhi xing delete yu ju , fa xian suo you bei shan chu de ji lu dou ji lu zai zai table2 zhong le
  delete from table1【原文】【汉音对照
 
 
 
 
 
 
 
 
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zeng jing yi wei SQL SERVER de chu fa qi zhi neng chu fa dan xing , ye jiu shi shuo ru guo yi ge delete chu fa qi , ru guo tong shi shan chu duo xing shi , zhi hui dui di yi tiao ji lu chu fa , hou lai fa xian le bu shi ren jia SQL SERVER bu zhi chi , er shi ou nao zi ben mei fa xian 。 qi shi inserted he deleted liang zhang nei bu biao cun fang le suo you yao cha ru huo yao shan chu de ji lu , ke yi yong cursor zhu ci fang wen li mian de mei tiao ji lu , xia mian shi yi ge shi li , gai chu fa qi jiang yao shan chu de ji lu zhuan yi dao ling yi zhang biao zhong : di yi bu , chuang jian zhe liang zhang biao create table table1([id] int primary key, [value] varchar(100))create table table2([id] int primary key, [value] varchar(100)) di er bu , cha ru ce shi shu ju declare @i intset @i = 1while @i <= 100begin insert into table1([id], [value]) values(@i, cast(@i as varchar)) set @i = @i + 1end chuang jian table1 de delete chu fa qi create trigger tr_d_table1 on table1 for deleteasbegin declare @id int, @value varchar(100) declare cur_del cursor local forward_only for select [id], [value] from deleted open cur_del fetch next from cur_del into @id, @value while @@fetch_status = 0 begin insert into table2([id], [value]) values(@id, @value) fetch next from cur_del into @id, @value end close cur_del deallocate cur_del end xian zai dui table1 zhi xing delete yu ju , fa xian suo you bei shan chu de ji lu dou ji lu zai zai table2 zhong le delete from table1
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