Software Development Exam > Software Development Questions > Consider the following SQL query:SELECT AVG(A...
Start Learning for Free
Consider the following SQL query:
SELECT AVG(Age) FROM Students;
What does the query return?
What does the query return?
- a)The average age of all students in the Students table.
- b)The sum of ages of all students in the Students table.
- c)The maximum age of all students in the Students table.
- d)The minimum age of all students in the Students table.
Correct answer is option 'A'. Can you explain this answer?
Verified Answer
Consider the following SQL query:SELECT AVG(Age) FROM Students;What do...
The SQL query 'SELECT AVG(Age) FROM Students'; calculates the average (mean) of the 'Age' column in the 'Students' table.
Most Upvoted Answer
Consider the following SQL query:SELECT AVG(Age) FROM Students;What do...
Answer:
This SQL query returns the average age of all students in the Students table. Let's break down the query and understand it in detail.
SELECT AVG(Age) FROM Students;
- SELECT: This keyword is used to retrieve data from the database.
- AVG: This is an aggregate function that calculates the average of a given column.
- (Age): This specifies the column for which we want to calculate the average.
Meaning of the query:
The query is asking the database to calculate the average of the "Age" column from the "Students" table.
Explanation:
1. The query starts with the keyword "SELECT", which indicates that we want to retrieve some data from the database.
2. Next, we use the aggregate function "AVG" to calculate the average of a specific column.
3. Inside the "AVG" function, we specify the column "Age" for which we want to calculate the average.
4. After that, we specify the table "Students" from which we want to retrieve the data.
5. The query ends with a semicolon (;), indicating the end of the statement.
Result:
The query returns the average age of all students in the Students table. It calculates the sum of all ages and divides it by the total number of students.
Conclusion:
In summary, the given SQL query calculates and returns the average age of all students in the Students table. It provides a useful way to analyze and understand the age distribution of the students in the database.
This SQL query returns the average age of all students in the Students table. Let's break down the query and understand it in detail.
SELECT AVG(Age) FROM Students;
- SELECT: This keyword is used to retrieve data from the database.
- AVG: This is an aggregate function that calculates the average of a given column.
- (Age): This specifies the column for which we want to calculate the average.
Meaning of the query:
The query is asking the database to calculate the average of the "Age" column from the "Students" table.
Explanation:
1. The query starts with the keyword "SELECT", which indicates that we want to retrieve some data from the database.
2. Next, we use the aggregate function "AVG" to calculate the average of a specific column.
3. Inside the "AVG" function, we specify the column "Age" for which we want to calculate the average.
4. After that, we specify the table "Students" from which we want to retrieve the data.
5. The query ends with a semicolon (;), indicating the end of the statement.
Result:
The query returns the average age of all students in the Students table. It calculates the sum of all ages and divides it by the total number of students.
Conclusion:
In summary, the given SQL query calculates and returns the average age of all students in the Students table. It provides a useful way to analyze and understand the age distribution of the students in the database.
|
Explore Courses for Software Development exam
|
|
Top Courses for Software DevelopmentView all
Question Description
Consider the following SQL query:SELECT AVG(Age) FROM Students;What does the query return?a)The average age of all students in the Students table.b)The sum of ages of all students in the Students table.c)The maximum age of all students in the Students table.d)The minimum age of all students in the Students table.Correct answer is option 'A'. Can you explain this answer? for Software Development 2025 is part of Software Development preparation. The Question and answers have been prepared according to the Software Development exam syllabus. Information about Consider the following SQL query:SELECT AVG(Age) FROM Students;What does the query return?a)The average age of all students in the Students table.b)The sum of ages of all students in the Students table.c)The maximum age of all students in the Students table.d)The minimum age of all students in the Students table.Correct answer is option 'A'. Can you explain this answer? covers all topics & solutions for Software Development 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Consider the following SQL query:SELECT AVG(Age) FROM Students;What does the query return?a)The average age of all students in the Students table.b)The sum of ages of all students in the Students table.c)The maximum age of all students in the Students table.d)The minimum age of all students in the Students table.Correct answer is option 'A'. Can you explain this answer?.
Consider the following SQL query:SELECT AVG(Age) FROM Students;What does the query return?a)The average age of all students in the Students table.b)The sum of ages of all students in the Students table.c)The maximum age of all students in the Students table.d)The minimum age of all students in the Students table.Correct answer is option 'A'. Can you explain this answer? for Software Development 2025 is part of Software Development preparation. The Question and answers have been prepared according to the Software Development exam syllabus. Information about Consider the following SQL query:SELECT AVG(Age) FROM Students;What does the query return?a)The average age of all students in the Students table.b)The sum of ages of all students in the Students table.c)The maximum age of all students in the Students table.d)The minimum age of all students in the Students table.Correct answer is option 'A'. Can you explain this answer? covers all topics & solutions for Software Development 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Consider the following SQL query:SELECT AVG(Age) FROM Students;What does the query return?a)The average age of all students in the Students table.b)The sum of ages of all students in the Students table.c)The maximum age of all students in the Students table.d)The minimum age of all students in the Students table.Correct answer is option 'A'. Can you explain this answer?.
Solutions for Consider the following SQL query:SELECT AVG(Age) FROM Students;What does the query return?a)The average age of all students in the Students table.b)The sum of ages of all students in the Students table.c)The maximum age of all students in the Students table.d)The minimum age of all students in the Students table.Correct answer is option 'A'. Can you explain this answer? in English & in Hindi are available as part of our courses for Software Development.
Download more important topics, notes, lectures and mock test series for Software Development Exam by signing up for free.
Here you can find the meaning of Consider the following SQL query:SELECT AVG(Age) FROM Students;What does the query return?a)The average age of all students in the Students table.b)The sum of ages of all students in the Students table.c)The maximum age of all students in the Students table.d)The minimum age of all students in the Students table.Correct answer is option 'A'. Can you explain this answer? defined & explained in the simplest way possible. Besides giving the explanation of
Consider the following SQL query:SELECT AVG(Age) FROM Students;What does the query return?a)The average age of all students in the Students table.b)The sum of ages of all students in the Students table.c)The maximum age of all students in the Students table.d)The minimum age of all students in the Students table.Correct answer is option 'A'. Can you explain this answer?, a detailed solution for Consider the following SQL query:SELECT AVG(Age) FROM Students;What does the query return?a)The average age of all students in the Students table.b)The sum of ages of all students in the Students table.c)The maximum age of all students in the Students table.d)The minimum age of all students in the Students table.Correct answer is option 'A'. Can you explain this answer? has been provided alongside types of Consider the following SQL query:SELECT AVG(Age) FROM Students;What does the query return?a)The average age of all students in the Students table.b)The sum of ages of all students in the Students table.c)The maximum age of all students in the Students table.d)The minimum age of all students in the Students table.Correct answer is option 'A'. Can you explain this answer? theory, EduRev gives you an
ample number of questions to practice Consider the following SQL query:SELECT AVG(Age) FROM Students;What does the query return?a)The average age of all students in the Students table.b)The sum of ages of all students in the Students table.c)The maximum age of all students in the Students table.d)The minimum age of all students in the Students table.Correct answer is option 'A'. Can you explain this answer? tests, examples and also practice Software Development tests.
|
|
Explore Courses for Software Development exam
|
|
Signup for Free!
Signup to see your scores go up within 7 days! Learn & Practice with 1000+ FREE Notes, Videos & Tests.
|
© EduRev
|
Education Revolution
|
|
Signup on EduRev and stay on top of your study goals
10M+ students crushing their study goals daily