Comments on: SQL SERVER – Prevent Constraint to Allow NULL http://blog.sqlauthority.com/2011/04/21/sql-server-prevent-constraint-to-allow-null/ SQL, SQL Server, MySQL, Big Data and NoSQL Wed, 19 Jun 2013 21:45:15 +0000 hourly 1 http://wordpress.com/ By: SQL SERVER – Weekly Series – Memory Lane – #026 | SQL Server Journey with SQL Authority http://blog.sqlauthority.com/2011/04/21/sql-server-prevent-constraint-to-allow-null/#comment-464700 Sat, 27 Apr 2013 01:31:40 +0000 http://blog.sqlauthority.com/?p=12665#comment-464700 [...] Prevent Constraint to Allow NULL Here is a quick script which describes how to create a constraint which allows NULL. [...]

]]> By: madhivanan http://blog.sqlauthority.com/2011/04/21/sql-server-prevent-constraint-to-allow-null/#comment-421283 Wed, 13 Feb 2013 08:27:16 +0000 http://blog.sqlauthority.com/?p=12665#comment-421283 More on NULLs http://beyondrelational.com/modules/2/blogs/70/posts/14865/null-null-null-and-nothing-but-null.aspx

]]> By: Anup Nayak http://blog.sqlauthority.com/2011/04/21/sql-server-prevent-constraint-to-allow-null/#comment-419540 Fri, 08 Feb 2013 18:36:57 +0000 http://blog.sqlauthority.com/?p=12665#comment-419540 I rember you explaining in one of your sessions about NULL, you using your fingers to explain the concept of null, so in this case null would act as a value which can be greater than 0, but we do not know what the value is.

]]> By: SQL SERVER – Various Ways to Create Constraints – Quiz – Puzzle – 17 of 31 « SQL Server Journey with SQL Authority http://blog.sqlauthority.com/2011/04/21/sql-server-prevent-constraint-to-allow-null/#comment-239870 Wed, 18 Jan 2012 01:31:39 +0000 http://blog.sqlauthority.com/?p=12665#comment-239870 [...] Server Interview Questions and Answers ISBN: 1466405643 Page#137-139 Prevent Constraint to Allow NULL Create Default Constraint Over Table Column Create Primary Key with Specific Name when Creating [...]

]]> By: SQL SERVER – How to ALTER CONSTRAINT Journey to SQLAuthority http://blog.sqlauthority.com/2011/04/21/sql-server-prevent-constraint-to-allow-null/#comment-130778 Sun, 24 Apr 2011 01:31:00 +0000 http://blog.sqlauthority.com/?p=12665#comment-130778 [...] reading my earlier blog post SQL SERVER – Prevent Constraint to Allow NULL. I recently received question from user regarding how to alter the [...]

]]> By: Aditi http://blog.sqlauthority.com/2011/04/21/sql-server-prevent-constraint-to-allow-null/#comment-130362 Thu, 21 Apr 2011 13:09:39 +0000 http://blog.sqlauthority.com/?p=12665#comment-130362 Is it better to declare the col as not null or use check constraint? Performance is better in which scenario?

]]> By: chis http://blog.sqlauthority.com/2011/04/21/sql-server-prevent-constraint-to-allow-null/#comment-130328 Thu, 21 Apr 2011 07:40:02 +0000 http://blog.sqlauthority.com/?p=12665#comment-130328 the simple answer i would be saying to the error is null and 0 both are different for sql server. Null0.
instead of writing a day blog on this.

Hope coming article will be worth of reading.

]]> By: Manoj Sahoo http://blog.sqlauthority.com/2011/04/21/sql-server-prevent-constraint-to-allow-null/#comment-130290 Thu, 21 Apr 2011 03:58:34 +0000 http://blog.sqlauthority.com/?p=12665#comment-130290 Here u r using two constraints i.e first one is CHECK Constraint and the Second one is NOTNULL Constraint. How to implement all these in one single CHECK Constraint

]]> By: Michael Codanti http://blog.sqlauthority.com/2011/04/21/sql-server-prevent-constraint-to-allow-null/#comment-130284 Thu, 21 Apr 2011 03:40:44 +0000 http://blog.sqlauthority.com/?p=12665#comment-130284 Of course you could also declare, or alter, the column with NOT NULL so that you couldn’t store a NULL in the table even without the constraint.

]]> By: Imran Mohammed http://blog.sqlauthority.com/2011/04/21/sql-server-prevent-constraint-to-allow-null/#comment-130280 Thu, 21 Apr 2011 03:28:12 +0000 http://blog.sqlauthority.com/?p=12665#comment-130280 How about making Col2 a NOT NULL column and then adding the constraintto that column.

~ IM.

]]>