Hi, Further to defining two columns you can use select statement to get the value in the format you want, eg. select concat(characters,'-',numbers) from example ; here characters and numbers are the two columns Hope this helps -- Regards, Abhishek jain ----- Original Message ---- From: Ruben Nijveld <mail@xxxxxxxxxxxx> To: php-objects@xxxxxxxxxxxxxxx Sent: Sunday, January 6, 2008 5:25:12 PM Subject: Re: question about SQL Rasha Abdo wrote: > Hi, > how can i define data type of filed like this: > > 3 characters and 6 auto increment numbers (example: "DLL - 123456") > > thanks. You cannot, you will have to use two columns. Furthermore, numbers aren't of a certain length. You might want to create the two colums like this: CREATE TABLE example ( characters CHAR(3) NOT NULL, number INT(10) NOT NULL auto_increment ); ~ Ruben ____________________________________________________________________________________ Looking for last minute shopping deals? Find them fast with Yahoo! Search. http://tools.search.yahoo.com/newsearch/category.php?category=shopping [Non-text portions of this message have been removed]