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Chapter 6. Subqueries

Chapter 6. Subqueries

All the queries you’ve seen so far in this book have contained just one SELECT statement. In this chapter, you will

  • Learn how to place a SELECT statement within an outer SELECT, UPDATE, or DELETE statement. The inner SELECT statement is known as a subquery.

  • Learn about the different types of subqueries and see how to use them.

  • See how subqueries allow you to build up very complex statements from simple components.


  

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