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Introduction to SQL

Introduction to SQL
Which of the following command makes the updates performed by the transaction permanent in the database?

ROLLBACK
DELETE
TRUNCATE
COMMIT

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Introduction to SQL
The Microsoft Access wildcards are ____ and ____ .

question mark (?); asterisk (*)
underscore(_); question mark (?)
asterisk (*); percent sign (%)
percent sign (%); underscore (_)

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Introduction to SQL
In SQL, which of the following is not a data definition language commands?

GRANT
RENAME
REVOKE
UPDATE

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

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Introduction to SQL
Let the statementSELECT column1 FROM myTable;return 10 rows. The statementSELECT ALL column1 FROM myTable;will return

None of these
exactly 10 rows
more than 10 rows
less than 10 rows

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Introduction to SQL
DISTINCT and its counterpart, ALL, can be used more than once in a SELECT statement.

True
False

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