Explore topic-wise MCQs in Structured Query Language (SQL).

This section includes 9 Mcqs, each offering curated multiple-choice questions to sharpen your Structured Query Language (SQL) knowledge and support exam preparation. Choose a topic below to get started.

1.

WHICH_AMONG_THE_FOLLOWING_HAVE_THE_MAXIMUM_BYTES??$

A. Varchar
B. Char
C. Text type
D. Both Varchar and Char
Answer» D. Both Varchar and Char
Discussion
2.

Which “text type” has the maximum number of bytes?#

A. Tiny text
B. Text
C. Medium text
D. Long text
Answer» E.
Discussion
3.

Which one is the correct declaration for choosing the character set other than default?

A. Varchar(20) character set utf8;
B. Varchar(20);
C. Varchar(20) character set;
D. None of the mentioned
Answer» B. Varchar(20);
Discussion
4.

Mysql support different character sets, which command is used to display all character sets?

A. SHOW CHARACTER SET;
B. SHOW;
C. CHARACTER SET;
D. None of the mentioned
Answer» B. SHOW;
Discussion
5.

In oracle database variable length column is declared by

A. Varchar
B. Varchar 3
C. Varchar2
D. None of the mentioned
Answer» D. None of the mentioned
Discussion
6.

The maximum length of the char columns is

A. 255 bytes
B. 65, 535 bytes
C. 256 bytes
D. None of the mentioned
Answer» B. 65, 535 bytes
Discussion
7.

Which declaration doesn’t use the same number of bytes and consumption of bytes depends on the input data?$

A. Varchar
B. Char
C. Both Varchar and Char
D. None of the mentioned
Answer» B. Char
Discussion
8.

Which declaration represents that “character data will consume the same number of bytes as declared and is right padded”?$

A. Char
B. Varchar
C. Both Char and Varchar
D. None of the mentioned
Answer» B. Varchar
Discussion
9.

Character data can be stored as

A. Fixed length string
B. Variable length string
C. Either Fixed or Variable length string
D. None of the mentioned
Answer» D. None of the mentioned
Discussion