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Introduction to SQL

Introduction to SQL
'AS' clause is used in SQL for

Join operation.
Rename operation.
Projection operation.
Selection operation.

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

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

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Introduction to SQL
The command to eliminate a table from a database is:

REMOVE TABLE CUSTOMER;
DELETE TABLE CUSTOMER;
UPDATE TABLE CUSTOMER;
DROP TABLE CUSTOMER;

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Introduction to SQL
There is an equivalent join expression that can be substituted for all subquery expressions.

False
True

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Introduction to SQL
The SQL -92 wildcards are ____ and ____ .

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

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

GRANT
RENAME
UPDATE
REVOKE

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