thanks .. I am using now a '' (empty) default and it works On 8 juin, 16:20, Scott Ribe <[email protected]> wrote: > On Jun 8, 2012, at 8:04 AM, Erwin wrote: > > > when contents.state is NULL, then the record IS NOT selected > > when contents.state is'' ( empty ) then the record is selected > > ( obviously when set to any other value too..) > > Yes, it's how SQL works--NULL is 'unknown', so comparison with any value > returns null. You need a SQL primer, and look especially for three-valued > logic. > > -- > Scott Ribe > [email protected]http://www.elevated-dev.com/ > (303) 722-0567 voice
-- You received this message because you are subscribed to the Google Groups "Ruby on Rails: Talk" group. To post to this group, send email to [email protected]. To unsubscribe from this group, send email to [email protected]. For more options, visit this group at http://groups.google.com/group/rubyonrails-talk?hl=en.
