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SQL Queries for Mere Mortals: A Hands-On Guide to Data Manipulation in SQL, Fourth edition by John L. Viescas

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5Getting More Than Simple Columns

“Facts are stubborn things.”

—TOBIAS SMOLLETT GIL BLAS DE SANTILLANE

In Chapter 4, “Creating a Simple Query,” you learned how to use a SELECT statement to retrieve information from one or more columns in a table. This technique is useful if you’re posing only simple requests to the database for some basic facts. However, you’ll need to expand your SQL vocabulary when you begin working with complex requests. In ...

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