Introduction to SQL
Which of the following is the original purpose of SQL?

All of these
To define the data structures
To specify the syntax and semantics of SQL manipulation language
To specify the syntax and semantics of SQL data definition language

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Introduction to SQL
The HAVING clause does which of the following?

Acts like a WHERE clause but is used for columns rather than groups.
Acts like a WHERE clause but is used for rows rather than columns.
Acts like a WHERE clause but is used for groups rather than rows.
Acts EXACTLY like a WHERE clause.

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Introduction to SQL
To define what columns should be displayed in an SQL SELECT statement:

use FROM to name the source table(s) and list the columns to be shown after SELECT.
use USING to name the source table(s) and list the columns to be shown after WHER
use USING to name the source table(s) and list the columns to be shown after SELECT.
use SELECT to name the source table(s) and list the columns to be shown after USING.

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