On Friday 04 April 2003 15:37, Grégoire Dubois wrote: > In the following table, I declare ID as a PRIMARY KEY. Is it then > necessary to add the parameters NOT NULL AUTO_INCREMENT? > > CREATE TABLE company ( > ID INT NOT NULL AUTO_INCREMENT, > > name VARCHAR(30), > > admin_ID INT, > > PRIMARY KEY ID, > INDEX admin_ID, > ); > > Or can I just declare the table like that? Does creating a primary key > on an int immediatly involve this one to be not null, and to > auto-incrИment?
NOT NULL - yes, but if you want to have AUTO_INCREMENT column you should declare it as AUTO_INCREMENT. -- For technical support contracts, goto https://order.mysql.com/?ref=ensita This email is sponsored by Ensita.net http://www.ensita.net/ __ ___ ___ ____ __ / |/ /_ __/ __/ __ \/ / Victoria Reznichenko / /|_/ / // /\ \/ /_/ / /__ [EMAIL PROTECTED] /_/ /_/\_, /___/\___\_\___/ MySQL AB / Ensita.net <___/ www.mysql.com -- MySQL General Mailing List For list archives: http://lists.mysql.com/mysql To unsubscribe: http://lists.mysql.com/[EMAIL PROTECTED]
