Sams Teach Yourself PHP, MySQL and Apache All in One (4th Edition)

The workshop is designed to help you anticipate possible questions, review what you've learned, and begin learning how to put your knowledge into practice.

Quiz

1.

What is a subquery?

2.

True or false: You can have only one level of subquery.

Answers

1.

A query that uses the result set of one query within a conditional statement of another.

2.

False. You can have as many as you want, as long as they are well-formed.

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