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Introduction to SQL

Introduction to SQL
The SQL keyword BETWEEN is used:

to limit the columns displayed.
None of these
for ranges.
as a wildcard.

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Introduction to SQL
The SELECT command, with its various clauses, allows users to query the data contained in the tables and ask many different questions or ad hoc queries.

False
True

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Introduction to SQL
Which of the following SQL query is correct for selecting the name of staffs from 'staffinfo' table where salary is 10,000 or 25,000?

SELECT name FROM staffinfo WHERE salary BETWEEN 10000 AND 25000;
Both A and B
SELECT name FROM staffinfo WHERE salary IN (10000, 25000);
None of these

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

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Introduction to SQL
In SQL, which command(s) is(are) used to change a table's storage characteristics?

All of these
CHANGE TABLE
MODIFY TABLE
ALTER TABLE

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

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

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