Re: [Sqlrelay-discussion] UTF8 string become "Question mark" with mysql ?

[lee a. <an...@gm...>]

Dear david
I had found the same problem as your suppose.
Your early reply would be highly appreciated.
Thks for ur help ^__^


2011/12/29 David Muse <dav...@fi...>

>  Hello,
>
> The most likely cause of this is that someone has run a "set names
> 'ascii'" query or something similar.
>
> The default mysql client character set supports utf-8 characters, but if
> the character set is manually changed to something that does not, such as
> ascii, then utf-8 characters will be returned as ?'s.  For example:
>
> [dmuse@db ~]$ mysql -utestuser -ptestpassword testdb
> Reading table information for completion of table and column names
> You can turn off this feature to get a quicker startup with -A
>
> Welcome to the MySQL monitor.  Commands end with ; or \g.
> Your MySQL connection id is 9173
> Server version: 5.1.58 Source distribution
>
> Copyright (c) 2000, 2010, Oracle and/or its affiliates. All rights
> reserved.
> This software comes with ABSOLUTELY NO WARRANTY. This is free software,
> and you are welcome to modify and redistribute it under the GPL v2 license
>
> Type 'help;' or '\h' for help. Type '\c' to clear the current input
> statement.
>
> mysql> select * from testutf8;
> +--------+
> | col1   |
> +--------+
> | Falló |
> +--------+
> 1 row in set (0.00 sec)
>
> mysql> set names 'ascii';
> Query OK, 0 rows affected (0.00 sec)
>
> mysql> select * from testutf8;
> +--------+
> | col1   |
> +--------+
> | Fall?? |
> +--------+
> 1 row in set (0.00 sec)
>
> mysql>
>
>
> The character set is reset to the default every time you log out of mysql
> and back in.
>
> The problem is that sql relay never logs out or back in.  So, if someone
> runs a "set names" query (or similar) then it will persist until someone
> runs a query to reset the character set or restarts sqlrelay.
>
> For the next release, I'm working on a way to reset various things at
> session-end, including the character set.  An interim solution though would
> be to find the app that changes the character set and add a query to reset
> it when it closes the connection.
>
> I hope this helps.  Let me know if this is a workable solution for you or
> not.
>
> David Muse
> dav...@fi...
>
>
> On 12/21/2011 02:11 AM, lee angus wrote:
>
> Dear all
>   We are using sqlrely with mysql.
>   The beginnng,querey UTF8 string retun correctlly on our production
> machine.
>   After a few days,UFT8 string become "??????".
>   Then,we restart sqlrelay daemond,and UTF8 string retun correctlly again.
>   When the problem occured,we tried to use sqlrsh to execute query,the
> UTF8 string has become "???????".
>
>
>  My env as below
>  Sqlrelay 0.43
>  rudiments 0.34
>  Mysql client 5.1.59
>  MariaDB 5.1.53
>
>  Any suggestion will be very appreciated !!
>
>
>
>
>
>
>
>
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