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Introduction to SQL

Introduction to SQL
To remove duplicate rows from the results of an SQL SELECT statement, the ________ qualifier specified must be included.

DISTINCT
SINGLE
ONLY
UNIQUE

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Introduction to SQL
DISTINCT and its counterpart, ALL, can be used more than once in a SELECT statement.

False
True

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Introduction to SQL
Which of the following is valid SQL for an Index?

CHANGE INDEX ID;
REMOVE INDEX ID;
ADD INDEX ID;
CREATE INDEX ID;

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Introduction to SQL
The rows of the result relation produced by a SELECT statement can be sorted, but only by one column.

True
False

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Introduction to SQL
The format SELECT-FROM-WHERE is the fundamental framework of SQL SELECT statements.

True
False

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Introduction to SQL
Which SQL keyword is used to retrieve a maximum value?

UPPER
TOP
MAX
MOST

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