troubleshooting Question

SQL <>

Avatar of Mr_Shaw
Mr_Shaw asked on
Microsoft SQL Server 2005Microsoft SQL Server 2008SQL
10 Comments4 Solutions256 ViewsLast Modified:
I am trying to select records where the 3 and forth characters are not equal to N7

Here is my code.
WHERE (LEFT(RIGHT(_Code, 3), 2) <> 'N7'  OR LEFT(RIGHT(_Code, 3), 2)  <>'N8')

It does not work.

I tested
WHERE (LEFT(RIGHT(_Code, 3), 2) <> 'N7' ) and It works.

Why can I not put the N7 and N8 condition next to each other?

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