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Introduction to SQL

Introduction to SQL
In SQL, which of the following is not a data definition language commands?

GRANT
RENAME
REVOKE
UPDATE

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Introduction to SQL
SQL is a data sublanguage.

False
True

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Introduction to SQL
SUM, AVG, MIN, and MAX can only be used with numeric columns.

True
False

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Introduction to SQL
The HAVING clause acts like a WHERE clause, but it identifies groups that meet a criterion, rather than rows.

False
True

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

CHANGE TABLE
MODIFY TABLE
All of these
ALTER TABLE

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Introduction to SQL
Each index consumes extra storage space and also requires overhead maintenance time whenever indexed data change value.

False
True

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