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

This section includes 12 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.

The column attribute provides unique numbers for identification is ______________

A. AUTO_INCREMENT
B. UNSIGNED
C. IDENTIFY
D. DESCRIBE
Answer» B. UNSIGNED
Discussion
2.

Illegal values converted to the appropriate ‘zero’ value for ______________

A. Numeric
B. String
C. ENUM
D. TIME
Answer» E.
Discussion
3.

The function returning reference to array of row values is ______________

A. fetchrow_array()
B. fetchrow_arrayref()
C. fetch()
D. fetchrow_hashref()
Answer» C. fetch()
Discussion
4.

fetchrow_hashref() returns reference to hash of row values keyed by ______________

A. row name
B. column name
C. table name
D. database name
Answer» C. table name
Discussion
5.

The function returning reference to hash of row values is ______________

A. fetchrow_array()
B. fetchrow_arrayref()
C. fetch()
D. fetchrow_hashref()
Answer» E.
Discussion
6.

The function returning an array of row values is ______________

A. fetchrow_array()
B. fetchrow_arrayref()
C. fetch()
D. fetchrow_hashref()
Answer» B. fetchrow_arrayref()
Discussion
7.

ILLEGAL_VALUES_CONVERTED_TO_THE_APPROPRIATE_‚ÄÖ√Ñ√∂‚ÀÖ√Ë‚Àւ§ZERO‚ÄÖ√Ñ√∂‚ÀÖ√Ë‚ÀÖ¬•_VALUE_FOR_______________?$#

A. Numeric
B. String
C. ENUM
D. TIME
Answer» E.
Discussion
8.

The_column_attribute_provides_unique_numbers_for_identification_is_______________$

A. AUTO_INCREMENT
B. UNSIGNED
C. IDENTIFY
D. DESCRIBE
Answer» B. UNSIGNED
Discussion
9.

By default, MySQL does not clip out of range numeric values to the nearest fit value?

A. True
B. False
Answer» C.
Discussion
10.

What is the maximum non zero values for DOUBLE?

A. ±1.7976931348623157E+307
B. ±1.7976931348623157E+308
C. ±1.7976931348623157E+306
D. ±1.7976931348623157E+305
Answer» C. ¬¨¬®¬¨¬±1.7976931348623157E+306
Discussion
11.

What is the maximum non zero value for FLOAT?

A. 3.402823466E+38
B. 3.402823466E+37
C. 3.402823466E+39
D. 3.402823466E+35
Answer» B. 3.402823466E+37
Discussion
12.

RTF refers to ______________

A. Rich Text Format
B. Right Text Format
C. Rich Text Function
D. Right Text Function
Answer» B. Right Text Format
Discussion