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Introduction to SQL

Introduction to SQL
Which SQL statement is used to delete data FROM a database?

COLLAPSE
DELETE
ALTER
REMOVE

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Introduction to SQL
To sort the results of a query use:

ORDER BY.
None of these
GROUP BY.
SORT BY.

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Introduction to SQL
SQL can be used to:

modify database data only.
create database structures only.
query database data only.
All of these

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Introduction to SQL
Which operator performs pattern matching?

EXISTS operator
BETWEEN operator
None of these
LIKE operator

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Introduction to SQL
The ADD command is used to enter one row of data or to add multiple rows as a result of a query.

True
False

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Introduction to SQL
A subquery in an SQL SELECT statement:

can always be duplicated by a join.
has a distinct form that cannot be duplicated by a join.
can only be used with two tables.
cannot have its results sorted using ORDER BY.

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