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Introduction to SQL

Introduction to SQL
Most companies keep at least two versions of any database they are using.

True
False

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

ROLLBACK
TRUNCATE
COMMIT
DELETE

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Introduction to SQL
To establish a range of values, < and > can be used.

True
False

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

Self-Join
Non-Equijoin
Equijoin
None of these

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Introduction to SQL
Which of the following is valid SQL for an Index?

REMOVE INDEX ID;
CHANGE INDEX ID;
ADD INDEX ID;
CREATE INDEX ID;

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

QUERY
SELECT
READ
None of these

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