--如果是第一次执行则先创建存储过程
--如果不是第一次执行则直接修改 就可以。或者直接调用
create proc Full_Search(@string nvarchar(500),@string2 nvarchar(500))
--alter proc dbo.Full_Search(@string nvarchar(500),@string2 nvarchar(500))
as
begin
declare @tbname varchar(500)
declare tbroy cursor for select name from sysobjects
where xtype= 'u ' --第一个游标遍历所有的表
open tbroy
fetch next from tbroy into @tbname
while @@fetch_status=0
begin
declare @colname varchar(50)
declare colroy cursor for select name from syscolumns
where id=object_id(@tbname) and xtype in (
select xtype from systypes
where name in ( 'varchar ', 'nvarchar ', 'char ', 'nchar ') --数据类型为字符型的字段
--where name in ('nvarchar ' ) --数据类型为字符型的字段
) --第二个游标是第一个游标的嵌套游标，遍历某个表的所有字段
open colroy
fetch next from colroy into @colname
while @@fetch_status=0
begin
declare @sql nvarchar(1000),@j int
exec( 'UPDATE ' +@tbname + ' SET '+@colname+' = replace('+@colname+','+ ''''+@string+ ''', '+ ''''+@string2+ ''');')
--print( 'UPDATE ' +@tbname + ' SET '+@colname+' = replace('+@colname+','+ ''''+@string+ ''', '+ ''''+@string2+ ''');')
-- exec( 'select distinct '+@colname+' from ' +@tbname + ' where '+ @colname+ ' like '+ '''%'+@string+ '%''')
fetch next from colroy into @colname
end
close colroy
deallocate colroy
fetch next from tbroy into @tbname
end
close tbroy
deallocate tbroy
end
go
--exec Full_Search 'mm','' 整库替换函数 第一个参数是 被替换的数据 ，第二个参数是替换后的数据
go