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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 is valid SQL for an Index?

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

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Introduction to SQL
The SQL keyword BETWEEN is used:

as a wildcard.
None of these
to limit the columns displayed.
for ranges.

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Introduction to SQL
Table Employee has 10 records. It has a non-NULL SALARY column which is also UNIQUE.The SQL statementSELECT COUNT(*) FROM Employee WHERE SALARY > ANY (SELECT SALARY FROM EMPLOYEE);prints

0
9
5
10

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Introduction to SQL
Which of the following is the correct order of keywords for SQL SELECT statements?

WHERE, FROM,SELECT
FROM, WHERE, SELECT
SELECT,WHERE,FROM
SELECT, FROM, WHERE

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Introduction to SQL
SQL is a programming language.

False
True

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