Are you using the strict SQL mode? Check your my.cnf file.
Peter
> Date: Fri, 4 Feb 2011 14:08:01 -0800
> From: awall...@ihouseweb.com
> To: mysql@lists.mysql.com
> Subject: Question about database value checking
>
> So, a problem popped up today that has caused us no end of hair-pulling, and
> it brought to mind a similar issue that I found very, well, wrong.
>
> If you have a table defined:
>
> CREATE TABLE `tester_table` (
> `acnt` varchar(20) NOT NULL DEFAULT '',
> `method` varchar(10) NOT NULL DEFAULT '',
> `card_num` varchar(100) NOT NULL DEFAULT '',
> PRIMARY KEY (`acnt`)
> ) ENGINE=MyISAM DEFAULT CHARSET=latin1
>
> And try this:
>
> INSERT INTO tester_table (acnt, method, card_num)
> VALUES ('test1', 'push', NULL);
>
> That fails. and gives a nice error. But:
>
> INSERT INTO tester_table (acnt, method, card_num)
> VALUES ('test1', 'push', 'A12345');
>
> UPDATE tester_table set card_num = NULL WHERE acnt = 'test1';
>
> That succeeds, but it puts an empty string into the card_num column. I
> would have thought (hoped) that an error would be thrown in that case as
> well. On a similar note, the following table:
>
> CREATE TABLE `tester_table2` (
> `acnt` varchar(20) NOT NULL,
> `required` enum('NO','DETAILS','RESULTS') NOT NULL,
> PRIMARY KEY (`acnt`)
> ) ENGINE=InnoDB DEFAULT CHARSET=utf8
>
> Lets you insert:
>
> INSERT INTO tester_table2 (acnt, required) VALUES ('A123456', 'THIS IS NOT
> REAL');
>
> Though it just puts an empty string into the "required" column.
>
> Is there a setting for mysql to return errors in these cases? It seems silly
> to set
> up an enum column, or a not null column, and not have the possible values
> enforced?
>
> thanks,
> andy
>
>
> --
> Andy Wallace
> iHOUSEweb, Inc.
> awall...@ihouseweb.com
> (866) 645-7700 ext 219
> --
> There are two ways to build software:
> Make it so simple that there are obviously no bugs,
> or make it so complex that there are no obvious bugs.
>
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