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SQL Queries for Mere Mortals: A Hands-On Guide to Data Manipulation in SQL, Second Edition by Michael J. Hernandez, John L. Viescas

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Sample Statements

You now know the mechanics of constructing queries using subqueries and have seen some of the types of requests you can answer with a subquery. Let’s take a look at a fairly robust set of samples, all of which use one or more subqueries. These examples come from each of the sample databases, and they illustrate the use of the subqueries to either generate an output column or act as a filter.

We’ve also included sample result sets that would be returned by these operations and placed them immediately after the SQL syntax line. The name that appears immediately above a result set is the name we gave each query in the sample data on the companion CD you’ll find bound into the back of the book. We stored each query in the appropriate ...

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