Question

I can’t find the answer since searching mysql NOT in google is a nightmare (even with the quotes).

I need to make a query like this:

SELECT * FROM table WHERE field=value AND field2!=value2 AND field3!=value3 

How it is done? Is it even possible?

Answer 1

SELECT * FROM table WHERE          ((field = value) AND           (field2 <> value2) AND          (field3 <> value3)) 

If you’re dealing with NULL, you have to do two things:

1. Use SET ANSI_NULLS ON
2. Declare NULL values to a dummy value.

SQL Cannot compare nulls.

To do that:

SET @value = ISNULL(@value, -1);