External Article

The Practical Problems of Determining Equality and Equivalence in SQL

In theory, it is easy to determine whether data is equal to, greater than or lesser than a value. Real-world data types can be surprisingly tricky, even for gauging data equivalence. Because SQL cannot remain aloof from any application's data types, you need to be aware of the ways and pitfalls of individual datatypes and how you can test for equality, equivalence, similarity, identity and all that jazz. Joe Celko discusses.

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Question of the Day

QUOTENAME Quote Parameters

When I use QUOTENAME(), I can optionally provide the character used to surround the string in the result. Can I use any character?

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