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Software Development Exam  >  Software Development Tests  >  Test: SQL Functions - 1 - Software Development MCQ

Test: SQL Functions - 1 - Software Development MCQ


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15 Questions MCQ Test - Test: SQL Functions - 1

Test: SQL Functions - 1 for Software Development 2025 is part of Software Development preparation. The Test: SQL Functions - 1 questions and answers have been prepared according to the Software Development exam syllabus.The Test: SQL Functions - 1 MCQs are made for Software Development 2025 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for Test: SQL Functions - 1 below.
Solutions of Test: SQL Functions - 1 questions in English are available as part of our course for Software Development & Test: SQL Functions - 1 solutions in Hindi for Software Development course. Download more important topics, notes, lectures and mock test series for Software Development Exam by signing up for free. Attempt Test: SQL Functions - 1 | 15 questions in 30 minutes | Mock test for Software Development preparation | Free important questions MCQ to study for Software Development Exam | Download free PDF with solutions
Test: SQL Functions - 1 - Question 1
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Which of the following best describes SQL functions?

Detailed Solution for Test: SQL Functions - 1 - Question 1

SQL functions are used to perform various operations on data in the database, such as manipulating strings, performing calculations, extracting substrings, and more.

Test: SQL Functions - 1 - Question 2
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Which SQL function is used to convert a string to uppercase letters?

Detailed Solution for Test: SQL Functions - 1 - Question 2

The UPPER() function is used to convert a string to uppercase letters. It takes a string as input and returns the string with all characters converted to uppercase.

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Test: SQL Functions - 1 - Question 3
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What is the purpose of the SQL function INSTR()?

Detailed Solution for Test: SQL Functions - 1 - Question 3

The INSTR() function is used to search for a substring within a string and returns the position of the first occurrence of the substring within the string.

Test: SQL Functions - 1 - Question 4
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Which SQL function is used to extract a substring from a string?
Detailed Solution for Test: SQL Functions - 1 - Question 4

The SUBSTR() function is used to extract a substring from a string. It takes a string and the starting position as input and returns the substring starting from the specified position.

Test: SQL Functions - 1 - Question 5
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What is the purpose of the SQL function CONCAT()?
Detailed Solution for Test: SQL Functions - 1 - Question 5

The CONCAT() function is used to concatenate two or more strings together. It takes multiple string arguments and returns a single string by combining them.

Test: SQL Functions - 1 - Question 6
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Consider the following SQL code:

SELECT UPPER('Hello World') AS Result;

What will be the output of the above code?
Detailed Solution for Test: SQL Functions - 1 - Question 6

The UPPER() function converts the string 'Hello World' to uppercase, resulting in the output "HELLO WORLD".

Test: SQL Functions - 1 - Question 7
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Consider the following SQL code:

SELECT LOWER('Hello World') AS Result;
What will be the output of the above code?
Detailed Solution for Test: SQL Functions - 1 - Question 7

The LOWER() function converts the string 'Hello World' to lowercase, resulting in the output "hello world".

Test: SQL Functions - 1 - Question 8
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Consider the following SQL code:

SELECT LENGTH('Hello World') AS Result;
What will be the output of the above code?
Detailed Solution for Test: SQL Functions - 1 - Question 8

The LENGTH() function returns the length of the string 'Hello World', which is 11 characters.

Test: SQL Functions - 1 - Question 9
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Consider the following SQL code:

Consider the following SQL code:

What will be the output of the above code?
Detailed Solution for Test: SQL Functions - 1 - Question 9

The INSTR() function searches for the first occurrence of the letter 'o' in the string 'Hello World' and returns its position, which is 7.

Test: SQL Functions - 1 - Question 10
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Consider the following SQL code:

SELECT SUBSTR('Hello World', 7) AS Result;
What will be the output of the above code?
Detailed Solution for Test: SQL Functions - 1 - Question 10

The SUBSTR() function extracts the substring starting from position 7 in the string 'Hello World', resulting in the output "World".

Test: SQL Functions - 1 - Question 11
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Consider the following SQL code:

SELECT CONCAT('Hello', ' ', 'World') AS Result;
What will be the output of the above code?
Detailed Solution for Test: SQL Functions - 1 - Question 11

The CONCAT() function combines the strings 'Hello', ' ', and 'World', resulting in the output "Hello World".

Test: SQL Functions - 1 - Question 12
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Consider the following SQL code:

SELECT UPPER(SUBSTR('Hello World', 3, 4)) AS Result;

What will be the output of the above code?
Detailed Solution for Test: SQL Functions - 1 - Question 12

The SUBSTR() function extracts the substring starting from position 3 and with a length of 4 from the string 'Hello World'. The resulting output is "ELL".

Test: SQL Functions - 1 - Question 13
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Consider the following SQL code:

SELECT CONCAT('Hello', SUBSTR(' World', 2)) AS Result;
What will be the output of the above code?
Detailed Solution for Test: SQL Functions - 1 - Question 13

The CONCAT() function combines the strings 'Hello' and ' World' after removing leading and trailing spaces. The resulting output is "HelloWorld ".

Test: SQL Functions - 1 - Question 14
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Consider the following SQL code:

SELECT INSTR(CONCAT('Hello World', 'Hello'), 'o') AS Result;

What will be the output of the above code?
Detailed Solution for Test: SQL Functions - 1 - Question 14

The INSTR() function searches for the first occurrence of the letter 'o' in the concatenated string 'Hello WorldHello' and returns its position, which is 7.

Test: SQL Functions - 1 - Question 15
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Consider the following SQL code:

SELECT LENGTH(CONCAT('Hello', ' ', 'World')) AS Result;

What will be the output of the above code?
Detailed Solution for Test: SQL Functions - 1 - Question 15

The LENGTH() function returns the length of the concatenated string 'Hello World', which is 10 characters.

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SQL Functions - 1 MCQs with Answers

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