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Introduction to SQL

Introduction to SQL
Scalar aggregate are multiple values returned from an SQL query that includes an aggregate function.

False
True

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Introduction to SQL
'AS' clause is used in SQL for

Selection operation.
Rename operation.
Join operation.
Projection operation.

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Introduction to SQL
Which of the following is a SQL aggregate function?

LEFT
AVG
JOIN
LEN

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Introduction to SQL
In SQL, which command is used to change a table's storage characteristics?

CHANGE TABLE
MODIFY TABLE
ALTER TABLE
None of these

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Introduction to SQL
The SQL keyword GROUP BY instructs the DBMS to group together those rows that have the same value in a column.

False
True

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Introduction to SQL
________ was adopted as a national standard by ANSI in 1992.

SQL
Microsoft Access
Oracle
DBase

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