Check out the MySQL website for altering table structure: http://www.mysql.com/doc/A/L/ALTER_TABLE.html
You could use MODIFY to change the columns definition in your tables. Note that specifying NOT NULL on a column will not affect existing rows where that field already contains a NULL value. Regards, Al > -----Original Message----- > From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]] > Sent: Monday, March 04, 2002 6:00 AM > To: [EMAIL PROTECTED] > Subject: change column to not null in MySQL > > > Is there any way in mysql to change a column that contains data > from null = yes to be not null. > > I want to enforce users to enter some value in column_x that was > not a required field until now, by setting the column to not accept > any record where column_x is null, is there any way to do this > without distorting current data (I guess I will have to give some > bogus value for all the data field's that are now null before I can > change this).? > > If the column type cannot be changed what's the recommended > way of doing something like this. > > Thanks > > Shia > Shia Meisels > B&H Photo Video > 212-239-7500 Ext. 2158 > http://www.bhphotovideo.com > > > --------------------------------------------------------------------- > Before posting, please check: > http://www.mysql.com/manual.php (the manual) > http://lists.mysql.com/ (the list archive) > > To request this thread, e-mail <[EMAIL PROTECTED]> > To unsubscribe, e-mail > <[EMAIL PROTECTED]> > Trouble unsubscribing? Try: http://lists.mysql.com/php/unsubscribe.php _________________________________________________________ Do You Yahoo!? Get your free @yahoo.com address at http://mail.yahoo.com --------------------------------------------------------------------- Before posting, please check: http://www.mysql.com/manual.php (the manual) http://lists.mysql.com/ (the list archive) To request this thread, e-mail <[EMAIL PROTECTED]> To unsubscribe, e-mail <[EMAIL PROTECTED]> Trouble unsubscribing? Try: http://lists.mysql.com/php/unsubscribe.php
