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Introduction to SQL

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

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

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Introduction to SQL
SQL provides five built-in functions: COUNT, SUM, AVG, MAX, MIN.

True
False

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Introduction to SQL
Which of the following is a valid SQL type?

All of these
CHARACTER
NUMERIC
FLOAT

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Introduction to SQL
The benefits of a standard relational language include which of the following?

Reduced training costs
All of these
Increased dependence on a single vendor
Applications are not needed

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

ALIGN BY
GROUP BY
SORT BY
ORDER BY

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Introduction to SQL
The qualifier DISTINCT must be used in an SQL statement when we want to eliminate duplicate rows.

False
True

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