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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?

TRUNCATE
ROLLBACK
DELETE
COMMIT

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Introduction to SQL
Which operator performs pattern matching?

LIKE operator
EXISTS operator
None of these
BETWEEN operator

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

INSERT
JOIN
SELECT
DELETE

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

ALTER TABLE
CHANGE TABLE
MODIFY TABLE
All of these

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Introduction to SQL
The ADD command is used to enter one row of data or to add multiple rows as a result of a query.

True
False

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Introduction to SQL
The SQL statement that queries or reads data from a table is ________ .

SELECT
QUERY
READ
None of these

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