sqlserver查找所有表中是否包含字符并替换

declare @str varchar(100),@replaceStr varchar(100)
--设置要模糊搜索的字符串
set @str='苏州工业园区'
--设置替换的字符串
set @replaceStr=''
declare @s varchar(8000)
declare tb cursor local for
select s='if exists(select 1 from ['+b.name+'] where ['+a.name+'] like ''%'+@str+'%'') 
  update ['+b.name+'] set ['+a.name+'] =REPLACE(['+a.name+'],'''+@str+''','''+@replaceStr+''')
  '  
from syscolumns a join sysobjects b on a.id=b.id
where b.xtype='U' and a.status>=0 and a.xusertype in(175,239,231,167)
open tb
fetch next from tb into @s
while @@fetch_status=0
begin
exec(@s)
fetch next from tb into @s
end
close tb
deallocate TB