Talk:Integrity constraints

"The value of this attribute being mandatory indicates that the attribute can be NULL." Shouldn't it be "that the attribute cannot be NULL"?

Facuq (talk) 13:37, 14 September 2008 (UTC)

Uh, guys - you've said he thought up five integrity constraints, then list three. I don't know enough on the matter to fix it myself, but could someone with more knowledge do so? EmileVictor (talk) 04:49, 10 November 2009 (UTC)