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数据库存储过程替换text,ntext列中的字符串

时间:2007-11-09  来源:不详  作者:迈克DB
/*
author:amjn
date:2003-03-28
version:1.0
function:替换text,ntext列中的字符串(不支持中文)
*/
declare @ptr varbinary(16)
declare @amjnId int
declare @Position int,@len int
set @len=datalength('ILOVEHJL')  
declare wux_Cursor scroll Cursor
for
select textptr([Name]),[amjnId] from USA201
for read only
open wux_Cursor
fetch next from wux_Cursor into @ptr,@amjnId
while @@fetch_status=0
begin
  select @Position=patindex('%ILOVEHJL%',[Name]) from USA201 where [amjnId]=@amjnId
  while @Position>0
  begin
    set @Position=@Position-1
    updatetext USA201.[Name] @ptr @Position @len 'i love hjl'
    select @Position=patindex('%ILOVEHJL%',[Name]) from USA201 where [amjnId]=@amjnId
  end
  fetch next from wux_Cursor into @ptr,@amjnId
end
close wux_cursor
deallocate wux_cursor
go

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