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Introduction to SQL

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

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

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

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

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Introduction to SQL
Which of the following is the original purpose of SQL?

To specify the syntax and semantics of SQL manipulation language
All of these
To define the data structures
To specify the syntax and semantics of SQL data definition language

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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

10
5
0
9

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Introduction to SQL
If you are going to use a combination of three or more AND and OR conditions, it is often easier to use the NOT and NOT IN operators.

True
False

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Introduction to SQL
What is the meaning of LIKE '%0%0%'

Feature has more than two 0's
Feature ends with two 0's
Feature has two 0's in it, at any position
Feature begins with two 0's

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