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Introduction to SQL

Introduction to SQL
Which SQL keyword is used to retrieve a maximum value?

TOP
MOST
UPPER
MAX

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Introduction to SQL
COUNT(field_name) tallies only those rows that contain a value; it ignores all null values.

False
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
SQL provides the AS keyword, which can be used to assign meaningful column names to the results of queries using the SQL built-in functions.

True
False

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Introduction to SQL
Which of the following SQL commands can be used to add data to a database table?

INSERT
ADD
UPDATE
APPEND

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

False
True

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