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Introduction to SQL

Introduction to SQL
Microsoft Access has become ubiquitous, and being able to program in Access is a critical skill.

True
False

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

False
True

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

APPEND
UPDATE
INSERT
ADD

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Introduction to SQL
The SQL statement: SELECT Name, COUNT(*) FROM NAME_TABLE; counts the number of name rows and displays this total in a table with a single row and a single column.

False
True

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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

9
10
0
5

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Introduction to SQL
Which command undo all the updates performed by the SQL in the transaction?

DELETE
TRUNCATE
COMMIT
ROLLBACK

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