March 2000
Beginner
464 pages
9h 17m
English
Content preview from Sams Teach Yourself SQL in 24 Hours, Second Edition
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Hour 14, "Using Subqueries to Define Unknown Data"
Quiz Answers
| 1: | What is the function of a subquery when used with a SELECT statement? |
| A1: | The main function of a subquery when used with a SELECT statement is to return data that the main query can use to resolve the query. |
| 2: | Can you update more than one column when using the UPDATE statement in conjunction with a subquery? |
| A2: | Yes, you can update more than one column using the same UPDATE and subquery statement. |
| 3: | Are the following syntaxes correct? If not, what is the correct syntax?
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I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.