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INTRODUCTION TO SQL

Introduction to SQL
............. joins two or more tables based on a specified column value not equaling a specified column value in another table.

NON-EQUIJOIN
OUTER JOIN
EQUIJOIN
NATURAL JOIN

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

CHANGE TABLE
ALTER TABLE
None of these
MODIFY TABLE

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

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

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Introduction to SQL
Count function in SQL returns the number of

distinct values.
values.
columns.
groups.

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

NUMERIC
CHARACTER
FLOAT
All of these

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