On 5/31/05, Bryan Stevenson <[EMAIL PROTECTED]> wrote: > > What's the example of the situation you NULL issue -- a simple SQL > > example would help me figure out exactly what situation you're talking > > about. > > Simple...and there is no SQL behind it..the DB screwed the data > > Took over a project using MySQL 4.1.x. In trying to import the DB into > MS-SQL 2000 I found errors which related to NULL values being in NOT NULL > constrained columns. So MS-SQL correctly found the constraint and would not > allow the bad entries to be imported ;-)
There are scenarios where the same thing happens in MS-SQL. You can do just about anything to a column constraint if you add it *after* data is in the table using ALTER TABLE .... WITH NOCHECK for example. If the DBA is screwing up the data, there's not a lot *any* database can do to help -- a constraint only works if it's in effect when the data is being entered, which is definitely the case on a bulk import. MySQL wouldn't import that data by default either :) -- John Paul Ashenfelter CTO/Transitionpoint (blog) http://www.ashenfelter.com (email) [EMAIL PROTECTED] ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~| Logware (www.logware.us): a new and convenient web-based time tracking application. Start tracking and documenting hours spent on a project or with a client with Logware today. Try it for free with a 15 day trial account. http://www.houseoffusion.com/banners/view.cfm?bannerid=67 Message: http://www.houseoffusion.com/lists.cfm/link=i:4:208184 Archives: http://www.houseoffusion.com/cf_lists/threads.cfm/4 Subscription: http://www.houseoffusion.com/lists.cfm/link=s:4 Unsubscribe: http://www.houseoffusion.com/cf_lists/unsubscribe.cfm?user=11502.10531.4 Donations & Support: http://www.houseoffusion.com/tiny.cfm/54
