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Introduction to SQL

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

CHANGE TABLE
MODIFY TABLE
None of these
ALTER TABLE

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Introduction to SQL
Which SQL statement is used to delete data FROM a database?

DELETE
REMOVE
ALTER
COLLAPSE

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Introduction to SQL
The SELECT statement SELECT 'Hi' FROM DUAL WHERE NULL = NULL; Outputs

FLASE
Nothing
Hi
TRUE

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Introduction to SQL
How to select all data from student table starting the name from letter 'r'?

SELECT * FROM student WHERE name LIKE 'r%';
SELECT * FROM student WHERE name LIKE '%r%';
SELECT * FROM student WHERE name LIKE '_r%';
SELECT * FROM student WHERE name LIKE '%r';

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Introduction to SQL
Which one of the following sorts rows in SQL?

ALIGN BY
GROUP BY
ORDER BY
SORT BY

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Introduction to SQL
Indexes may be created or dropped at any time.

False
True

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