Hello Nils and Jerry,

Thanks you for your quick reply!

IMO, using trigger looks cleaner and prettier than Excel-like
if(char_length) hack
so I will probably give triggers a try.
Searching on the net, I found some articles on check constraints in MySQL.

http://gilfster.blogspot.com/2005/11/check-constraints-in-mysql-50.html
http://db4free.blogspot.com/2006/01/emulating-check-constraints.html
http://db4free.blogspot.com/2006/01/emulating-check-constraints-with-views.html

regards.

On 2/13/07, Nils Meyer <[EMAIL PROTECTED]> wrote:
Hi Js,

js wrote:
> Is there any easy way to implement 'NOT EMPTY' constraint?
There currently is no support for CHECK Constraints in MySQL, at least
to my knowing. So you'd have to go with a trigger.

regards
Nils

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