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Introduction to SQL

Introduction to SQL
What is the full form of SQL?

Structured Query Language
Simple Query Language
Structured Query List
None of these

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

OUTER JOIN
NATURAL JOIN
NON-EQUIJOIN
EQUIJOIN

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Introduction to SQL
A subquery in an SQL SELECT statement is enclosed in:

CAPITAL LETTERS.
brackets -- [...].
parenthesis -- (...) .
braces -- {...}.

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

True
False

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Introduction to SQL
Count function in SQL returns the number of

groups.
distinct values.
columns.
values.

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Introduction to SQL
Which operator performs pattern matching?

LIKE operator
BETWEEN operator
None of these
EXISTS operator

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