2011 PAT Questions- DBMS

ILP PAT Test:   DBMS

1)      The DBMS acts as an interface between what two components of an enterprise-class database system?
A.    Database application and the database
B.     Data and the database
C.     The user and the database application
D.    Database application and SQL
            Ans: A

2)      SQL stands for ________ .
A.    Structured Query Language
B.     Sequential Query Language
C.     Structured Question Language
D.    Sequential Question Language
            Ans: A

3)      Because it contains a description of its own structure, a database is considered to be ________ .
A.    Described
B.     metadata compatible
C.     self-describing
D.    an application program
            Ans: C

4)      You can add a row using SQL in a database with which of the following?
A.    ADD B.
B.     CREATE
C.     INSERT
D.    MAKE
            Ans: C

5)      The wildcard in a SELECT statement is which of the following?
A.    %
B.     &
C.     ∗
D.    #
            Ans: C

6)      The command to eliminate a row from a table is:
A.    REMOVE FROM CUSTOMER
B.     DROP FROM CUSTOMER
C.     DELETE FROM CUSTOMER
D.    UPDATE FROM CUSTOMER
            Ans: C

7)      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.
            Ans: B

8)      Which of the following is the original purpose of SQL?
A.    To specify the syntax
and semantics of SQL data definition language
B.     To specify the syntax
and semantics of SQL manipulation language
C.     To define the data
structures
D.    All of the above.
            Ans:-D

9)      The wildcard in a WHERE clause is useful when?
A.    An exact match is necessary in a SELECT statement.
B.     An exact match is not possible in a SELECT statement.
C.     An exact match is necessary in a CREATE statement.
D.    An exact match is not possible in a CREATE statement.
            Ans: B

10)  A view is which of the following?
A.    A virtual table that can be accessed via SQL commands
B.     A virtual table that cannot be accessed via SQL commands
C.     A base table that can be accessed via SQL commands
D.    A base table that cannot be accessed via SQL commands
            Ans: A

11)  The command to eliminate a table from a database is:
A.    REMOVE TABLE CUSTOMER;
B.     DROP TABLE CUSTOMER;
C.     DELETE TABLE CUSTOMER;
D.    UPDATE TABLE CUSTOMER;
            Ans: B

12)  ON UPDATE CASCADE ensures which of the following?
A.    Normalization
B.     Data Integrity
C.     Materialized Views
D.    All of the above.
            Ans: B

13)  SQL data definition commands make up a(n) ________ .
A.    DDL
B.     DML
C.     HTML
D.    XML
            Ans: A

14)  The SQL keyword(s) ________ is used with wildcards.
A.    LIKE only
B.     IN only
C.     NOT IN only
D.    IN and NOT IN
            Ans: A

15)  Which of the following is the correct order of keywords for SQL SELECT statements?
A.    SELECT, FROM, WHERE
B.     FROM, WHERE, SELECT
C.     WHERE, FROM,SELECT
D.    SELECT,WHERE,FROM
            Ans: A

16)  A subquery in an SQL SELECT statement is enclosed in:
A.    braces — {…}.
B.     CAPITAL LETTERS.
C.     parenthesis — (…).
D.    brackets — [...].
            Ans: C

17)  The result of a SQL SELECT statement is a(n) ________ .
A.    report
B.     form
C.     file
D.    table
            Ans: D

18)  Which one is not the command of DDL
A.    create
B.     alter
C.     delete
D.    drop
            Ans: C

19)  Grant & Revoke are the commands ___________.
A.    DDL
B.     DML
C.     DCL
D.    TCL
            Ans: C

20)  Commands of TCL are ?
A.    COMMIT & ROLLBACK
B.     DROP & TRUNCATE
C.     UPDATE & DELETE
D.    NONE OF THESE
            Ans: A

21)  Which of the following are the five built-in functions provided by SQL?
A.    COUNT, SUM, AVG, MAX, MIN
B.     SUM, AVG, MIN, MAX, MULT
C.     SUM, AVG, MULT, DIV, MIN
D.    SUM, AVG, MIN, MAX, NAME
            Ans: A