sqleserver 将数据库中所有表的，特定值更换为新值的T-SQL语句

declare @t varchar(255),@c varchar(255) 

declare table_cursor cursor for 

select a.name,b.name from sysobjects a,syscolumns b ,systypes c 

where a.id=b.id and a.xtype='u' and c.name in (--这里是要替换的类型 

'char', 'nchar', 'nvarchar', 'varchar','text','ntext' --这里如果你的text(ntext)类型没有超过8000(4000)长度，才可以使用

) 

declare @str varchar(500),@str2 varchar(500) 

--这里是你要替换的原字符 

set @str='6F07180D0F390525B06C0A810D4991B0' 

--这里是你要替换的新字符 

set @str2='7204070A3009073C175C0A815AC2D123'

open table_cursor fetch next from table_cursor into @t,@c 

while(@@fetch_status=0) 

begin 

    exec('update [' + @t + '] set [' + @c + ']=replace(cast([' + @c + '] as varchar(8000)),'''+@str+''','''+ @str2 +''')') 

    fetch next from table_cursor into @t,@c 

end 

close table_cursor 

deallocate table_cursor;