Hi, I have this structure: ----------------------------------------------- CREATE TABLE tabla ( id int(10) unsigned NOT NULL auto_increment, nombre varchar(100) NOT NULL default '', PRIMARY KEY (id), UNIQUE KEY nombre (nombre), UNIQUE KEY id (id) ) ENGINE=MyISAM;
SELECT * FROM tabla +++++++++++++++++++++++++++++++++ + id + nombre + +++++++++++++++++++++++++++++++++ + 1 + marcos + +++++++++++++++++++++++++++++++++ Now, I make a update: --------------------------------- UPDATE tabla SET nombre = NULL WHERE id = 1; --------------------------------- MySQL responds: "Query OK, 0 rows affected (0,01 sec)". Again I do select: SELECT * FROM tabla +++++++++++++++++++++++++++++++++ + id + nombre + +++++++++++++++++++++++++++++++++ + 1 + + +++++++++++++++++++++++++++++++++ MySQL Server change the NULL value by '', Why?, this is a bug?. Thanks for any answer....... Marcelo Sosa -- MySQL General Mailing List For list archives: http://lists.mysql.com/mysql To unsubscribe: http://lists.mysql.com/[EMAIL PROTECTED]