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Free download in PDF SQL Server Objective Type Questions and Answers for competitive exams. These short objective type questions with answers are very important for Board exams as well as competitive exams. These short solved questions or quizzes are provided by Gkseries.
(21)
To remove duplicate rows from the results of an SQL SELECT statement, the ________ qualifier specified must be included.
[A]
DISTINCT
[B]
SINGLE
[C]
ONLY
[D]
UNIQUE
(22)
The HAVING clause does which of the following?
[A]
It is good at handling geographical concepts.
[B]
Acts EXACTLY like a WHERE clause.
[C]
Acts like a WHERE clause but is used for rows rather than columns.
[D]
Acts like a WHERE clause but is used for columns rather than groups.
Answer: Acts like a WHERE clause but is used for groups rather than rows.
(23)
The result of a SQL SELECT statement is a(n) ________ .
[A]
table
[B]
file
[C]
report
[D]
form
(24)
Which of the following is the correct order of keywords for SQL SELECT statements?
[A]
SELECT, FROM, WHERE
[B]
SELECT,WHERE,FROM
[C]
FROM, WHERE, SELECT
[D]
WHERE, FROM,SELECT
Answer: SELECT, FROM, WHERE
(25)
The SQL keyword(s) ________ is used with wildcards.
[A]
LIKE only
[B]
IN only
[C]
NOT IN only
[D]
IN and NOT IN
(26)
Which of the following is valid SQL for an Index?
[A]
CHANGE INDEX ID;
[B]
REMOVE INDEX ID;
[C]
CREATE INDEX ID;
[D]
ADD INDEX ID;
(27)
SQL data definition commands make up a(n) ________ .
[A]
XML
[B]
DDL
[C]
DML
[D]
HTML
(28)
The command to eliminate a table from a database is:
[A]
DROP TABLE CUSTOMER;
[B]
UPDATE TABLE CUSTOMER;
[C]
REMOVE TABLE CUSTOMER;
[D]
DELETE TABLE CUSTOMER;
Answer: DROP TABLE CUSTOMER;
(29)
A view is which of the following?
[A]
A virtual table that can be accessed via SQL commands
[B]
A base table that cannot be accessed via SQL commands
[C]
A virtual table that cannot be accessed via SQL commands
[D]
A base table that can be accessed via SQL commands
Answer: A virtual table that can be accessed via SQL commands
(30)
The wildcard in a WHERE clause is useful when?
[A]
An exact match is not possible in a SELECT statement.
[B]
An exact match is not possible in a CREATE statement.
[C]
An exact match is necessary in a CREATE statement.
[D]
An exact match is necessary in a SELECT statement.
Answer: An exact match is not possible in a SELECT statement.
31
Which of the following is the original purpose of SQL?
[A]
To define the data structures
[B]
To specify the syntax and semantics of SQL manipulation language
[C]
To specify the syntax and semantics of SQL data definition language
[D]
All of the above
32
The SQL WHERE clause:
[A]
limits the column data that are returned.
[B]
limits the row data are returned.
[C]
Both A and B are correct.
[D]
Neither A nor B are correct.
Answer: limits the row data are returned.
33
The command to remove rows from a table 'CUSTOMER' is:
[A]
DELETE FROM CUSTOMER WHERE ...
[B]
UPDATE FROM CUSTOMER ...
[C]
DROP FROM CUSTOMER ...
[D]
REMOVE FROM CUSTOMER ...
Answer: DELETE FROM CUSTOMER WHERE ...
34
You can add a row using SQL in a database with which of the following?
[A]
INSERT
[B]
MAKE
[C]
ADD
[D]
CREATE
35
Which of the following are features of the object-oriented approach to databases?
[A]
The ability to develop more realistic models of the real world.
[B]
The ability to develop databases using natural language approaches.
[C]
The ability to develop database models based on location rather than state and behaviour.
[D]
The ability to represent the world in a non-geometric way.
Answer: The ability to develop more realistic models of the real world.
36
Which of the following are issues to be considered by users of large corporate GIS databases?
[A]
The need for multiple views or different windows into the same databases.
[B]
The need for concurrent access and multi-user update.
[C]
The need for manual transfer of records to paper.
[D]
The need for multiple copies of the same data and subsequent merging after separate updates.
Answer: The need for multiple views or different windows into the same databases.
37
What is a 'tuple'?
[A]
A row or record in a database table.
[B]
Another name for the key linking different tables in a database.
[C]
An attribute attached to a record.
[D]
Another name for a table in an RDBMS.
Answer: A row or record in a database table.
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