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Introduction to SQL

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

ALTER TABLE
MODIFY TABLE
CHANGE TABLE
All of these

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Introduction to SQL
Table employee has 10 records. It has a non-NULL SALARY column which is also UNIQUE.The SQL statementSELECT COUNT(*) FROM employee WHERE SALARY > ALL (SELECT SALARY FROM EMPLOYEE);prints

5
0
9
10

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Introduction to SQL
Which one of the following sorts rows in SQL?

SORT BY
ALIGN BY
ORDER BY
GROUP BY

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Introduction to SQL
The ADD command is used to enter one row of data or to add multiple rows as a result of a query.

True
False

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Introduction to SQL
The SQL keyword BETWEEN is used:

None of these
for ranges.
as a wildcard.
to limit the columns displayed.

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Introduction to SQL
The SELECT command, with its various clauses, allows users to query the data contained in the tables and ask many different questions or ad hoc queries.

True
False

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