Constraints

  • Britt Cluff (10/17/2011)


    Thanks for the question. I was pretty sure the check constraint would allow the NULL value.

    Ditto x 2. Just wanted to add that some Neanderthals (e.g. my favorite server :-)) are still running a version of SQL Server which won't accept type "date" (unless it's been defined by a fellow Nean.Man) -- could it hurt in these type of questions to write code which will work in older-than-latest versions (e.g. in this case, to use type "datetime")? Thanks.

  • The date datatype was added in SQL2008, so question might have been been better if it used the ubiquitous datetime datatype instead (i.e. viable on SQL2000, 2005 etc). No biggie!

  • Nice question, thanks.

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