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Mini-Quiz: Retrieving Columns of Data with SQL

by Ron Kurtus (revised 17 March 2016)

Take this Mini-Quiz to check your understanding of the lesson material.

1. What does the "wildcard" symbol mean?

It means you should show nothing

It means that all items are included

It has no real meaning and is used to fill in space

2. What do you SELECT to retrieve a single column?

The name of the column

A listing of all items in the column

The name of the database table

3. How do you retrieve several columns?

SELECT list of desired columns, separated by semi-colons (;)

You cannot retrieve several columns in SQL

SELECT list of desired columns, separated by commas

If you got all three correct, you are on your way to becoming a Champion in Using SQL. If you had problems, you had better look over the material again.

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