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Introduction to SQL

Introduction to SQL
Which SQL keyword is used to retrieve only unique values?

DISTINCTIVE
DIFFERENT
UNIQUE
DISTINCT

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

ALIGN BY
SORT BY
ORDER BY
GROUP BY

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Introduction to SQL
You can add a row using SQL in a database with which of the following?

INSERT
MAKE
ADD
CREATE

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Introduction to SQL
The SQL statementSELECT ROUND(45.926, -1) FROM DUAL;

prints 50
prints 045.926
is illegal
prints garbage

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Introduction to SQL
Indexes can usually be created for both primary and secondary keys.

True
False

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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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