假设你在改换数据库的内定字符串或字符,我们必要利用sql字符替换,然而对于非常的大容积的数码替换大家兴许要用到sql存储进度替换
物,因为存款和储蓄进程效率超越大家自个儿写的交替函数哦。

假诺您在轮番数据库教程的钦点字符串或字符,我们要求接纳sql字符替换,不过对于很大容积的多寡替换大家或许要用到sql存款和储蓄进度替换
物,因为存款和储蓄进度效能超越大家和煦写的轮流函数哦。

update 数据表 set 字段=replace(字段,’.’,”)

上边看一款查询结果字符替换

–select * from sjz_dlfzb

–select replace (substring(tbrq,2,len(tbrq)-2),’$’,’-‘) from
sjz_dlfzb

update sjz_dlfzb set tbrq=replace
(substring(tbrq,2,len(tbrq)-2),’$’,’-‘)

update sjz_hpzb set wdm=replace (substring(wdm,2,len(wdm)-2),’$’,’-‘)
where hp_id !=’130121010001’

update sjz_hpzb set dxslx=replace
(substring(dxslx,2,len(dxslx)-2),’$’,’-‘)

select * from sjz_nslzb

update sjz_nslzb set tbrq=replace
(substring(tbrq,2,len(tbrq)),’$’,’-‘) where nsl_id=’130131030061’

select * from sjz_nslzb where nsl_id=’130131030061′

select * from sjz_nslzb where nsl_id=’130132030033’update
sjz_nslzb set tbrq=replace (tbrq,’$’,’-‘) where
nsl_id=’130132030033’sjz_xpzb

update sjz_xpzb set wd=replace (substring(wd,2,len(wd)),’$’,’-‘)

利用存储进度替换字符

create table hello(id int identity(1,1),content text) insert into
hello select ‘img align=baseline alt= border=0 src=/_p1.jpgbr’ union
all select ‘img align=baseline alt= border=0 src=_p1.jpgbr’
–定义替换/删除的字符串 declare @s_str varchar(8000),@d_str
varchar(8000) select @s_str=” –要替换的字符串 ,@d_str=”
–替换到的字符串 –定义游标,循环处理多少 declare @id int declare #tb
cursor for select id from hello open #tb fetch next from #tb into
@id while @@fetch_status=0 begin –字符串替换管理 declare @p
varbinary(16卡塔尔,@postion int,@rplen int select
@p=textptr(content卡塔尔(قطر‎,@rplen=len(@s_str),@postion=charindex(@s_str,content)-1
from hello where id=@id while @postion0 begin updatetext hello.content
@p @postion @rplen @d_str select
@postion=charindex(@s_str,content)-1 from hello where id=@id end
fetch next from #tb into @id end close #tb deallocate #tb
–彰显结果 select * from hello –删除数据测量试验意况 drop table hello

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