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Introduction to SQL

Introduction to SQL
Which of the following command makes the updates performed by the transaction permanent in the database?

ROLLBACK
TRUNCATE
DELETE
COMMIT

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Introduction to SQL
A SELECT statement within another SELECT statement and enclosed in square brackets ([...]) is called a subquery.

True
False

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

MODIFY TABLE
CHANGE TABLE
All of these
ALTER TABLE

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Introduction to SQL
SQL data definition commands make up a(n) ________ .

DML
XML
DDL
HTML

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Introduction to SQL
Which of the following join is also called as an 'inner-join'?

Non-Equijoin
Equijoin
Self-Join
None of these

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Introduction to SQL
Which of the following SQL commands is used to retrieve data?

DELETE
SELECT
JOIN
INSERT

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