Practice Introduction To SQL Multiple Choice Questions Quiz-1

Q.1

SQL is a data sublanguage.

True
False

Q.2

The qualifier DISTINCT must be used in an SQL statement when we want to eliminate duplicate rows.

True
False

Q.3

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

True
False

Q.4

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

True
False

Q.5

A dynamic view is one whose contents materialize when referenced.

True
False

Q.6

SQL is a programming language.

True
False

Q.7

SELECT DISTINCT is used if a user wishes to see duplicate columns in a query.

True
False

Q.8

Indexes can usually be created for both primary and secondary keys.

True
False

Q.9

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

True
False

Q.10

SQL provides the AS keyword, which can be used to assign meaningful column names to the results of queries using the SQL built-in functions.

True
False

Q.11

The SQL keyword BETWEEN is used:

for ranges.
to limit the columns displayed.
as a wildcard.
None of the above is correct.

Q.12

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.

True
False

Q.13

A SELECT statement within another SELECT statement and enclosed in square brackets ([...]) is called a subquery.

True
False

Q.14

A subquery in an SQL SELECT statement:

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

Q.15

________ was adopted as a national standard by ANSI in 1992.

Oracle
SQL
Microsoft Access
DBase

Q.16

The rows of the result relation produced by a SELECT statement can be sorted, but only by one column.

True
False

Q.17

SQL is:

a programming language.
an operating system.
a data sublanguage.
a DBMS.

Q.18

The condition in a WHERE clause can refer to only one value.

True
False

Q.19

Which one of the following sorts rows in SQL?

SORT BY
ALIGN BY
ORDER BY
GROUP BY

Q.20

To sort the results of a query use:

SORT BY.
GROUP BY.
ORDER BY.
None of the above is correct.

SQL is a data sublanguage.

The qualifier DISTINCT must be used in an SQL statement when we want to eliminate duplicate rows.

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

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

A dynamic view is one whose contents materialize when referenced.

SQL is a programming language.

SELECT DISTINCT is used if a user wishes to see duplicate columns in a query.

Indexes can usually be created for both primary and secondary keys.

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

SQL provides the AS keyword, which can be used to assign meaningful column names to the results of queries using the SQL built-in functions.

The SQL keyword BETWEEN is used:

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.

A SELECT statement within another SELECT statement and enclosed in square brackets ([...]) is called a subquery.

A subquery in an SQL SELECT statement:

________ was adopted as a national standard by ANSI in 1992.

The rows of the result relation produced by a SELECT statement can be sorted, but only by one column.

SQL is:

The condition in a WHERE clause can refer to only one value.

Which one of the following sorts rows in SQL?

To sort the results of a query use:

0 h : 0 m : 1 s

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