How to use the IN operator with an Expression List
In this video we’ll walk you though how to use the IN operator; we’ll show you why you would want to use the IN operator and how to avoid some pitfalls associated with NULL. The IN operator matches a column to a list. Once you’ve gone through this article, I would recommend watching our next […]
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What is a Database NULL Value?
What is a Null Value? In databases a common issue is what value or placeholder do you use to represent a missing values. In SQL, this is solved with null. It is used to signify missing or unknown values. The keyword NULL is used to indicate these values. NULL really isn’t a specific value as much as it […]
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