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24 interview questionsfor developers (2024)

Test your developer skills before an interview with 24 corrected questions on 80+ topics. Beginner, Intermediate or Expert level.

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24 questions
Easy
16 votes1484 runs0 comment

Write a SQL query to retrieve the list of employees with a salary greater than 5100.

Back-end developer
sql
select
where
Vincent Cotroat Mar 30, 2023
Easy
9 votes1466 runs0 comment

Select only distinct values in a column using SQL

Back-end developer
sql
distinct
Vincent Cotroat Mar 27, 2023
Easy
9 votes1430 runs1 comment

Update a column in an SQL table

Back-end developer
sql
update
Vincent Cotroat Nov 7, 2023
Easy
8 votes1460 runs0 comment

Which SQL keyword is used to sort the result of a SELECT statement?

Back-end developer
sql
order by
Vincent Cotroat Mar 27, 2023
Medium
8 votes1422 runs1 comment

Write the SQL query to delete a column from a table

Back-end developer
sql
table
column
Vincent Cotroat Mar 27, 2023
Easy
7 votes1471 runs0 comment

Write a SQL query to insert data into a table

Back-end developer
sql
insert
Vincent Cotroat Mar 27, 2023
Easy
4 votes1457 runs2 comments

Write an INNER JOIN query in SQL

Back-end developer
sql
join
Vincent Cotroat Mar 27, 2023
Easy
4 votes1066 runs0 comment

Write a SQL query to retrieve employees with a salary higher than the average salary.

Back-end developer
sql
average
select
Vincent Cotroat Mar 28, 2023
Easy
3 votes1415 runs0 comment

How to delete an SQL table?

Back-end developer
sql
tables
Vincent Cotroat Mar 27, 2023
Easy
3 votes1398 runs0 comment

Write a SQL query to retrieve the products with a price less than 1000 and sort the results in descending order of price.

Back-end developer
sql
order by
descending
Vincent Cotroat Mar 28, 2023
Easy
3 votes366 runs1 comment

Write a SQL query to retrieve the titles of books written by 'John Smith'.

Back-end developer
join
inner join
sql
Vincent Cotroat Sep 6, 2023
Easy
2 votes1396 runs0 comment

Write a SQL query to calculate the total quantities sold for each product_id.

Back-end developer
sql
sum
group by
Vincent Cotroat Mar 28, 2023
Easy
2 votes1377 runs0 comment

Write a SQL query to get the total sales quantity for each product.

Back-end developer
sql
sum
group by
Vincent Cotroat Mar 28, 2023
Medium
2 votes931 runs2 comments

Write a SQL query to get the order_id and total number of items for each order.

Back-end developer
sql
join
group by
Vincent Cotroat Jan 2, 2024
Easy
2 votes380 runs0 comment

Which SQL command allows you to define a constraint on the range of values of a column when creating a table?

Back-end developer
sql
constraints
Louis Prevosteauat May 15, 2023
Easy
1 vote1436 runs
3 comments

Which SQL keyword is used to filter the results of a SELECT statement based on a specified condition?

Back-end developer
sql
select
where
Vincent Cotroat Mar 27, 2023
Easy
1 vote1388 runs0 comment

Write a SQL query to increase the salary of all employees by 10%.

Back-end developer
sql
update
salary
Vincent Cotroat Mar 28, 2023
Easy
1 vote1372 runs0 comment

Write a SQL query to get the total order amount for each customer.

Back-end developer
sql
sum
group by
Vincent Cotroat Mar 28, 2023
Easy
1 vote1177 runs0 comment

Write a SQL query to retrieve the titles of the movies and the names of their directors.

Back-end developer
join
inner join
Vincent Cotroat Mar 28, 2023
Medium
1 vote566 runs2 comments

Write a SQL query to count the number of orders placed by customer 1001.

Back-end developer
sql
count
group by
Manuvaiat Sep 6, 2023