SQL 75+

SQL Practice Problems

Master SQL with our comprehensive collection of 75+ handpick practice problems

SELECT

15 problems

Basic and advanced SELECT statements

JOINS

18 problems

INNER JOIN, LEFT JOIN, RIGHT JOIN, FULL JOIN

Aggregation

15 problems

GROUP BY, HAVING, COUNT, SUM, AVG, MIN, MAX

Subqueries

11 problems

Nested queries, correlated subqueries

Window Functions

7 problems

ROW_NUMBER, RANK, DENSE_RANK, LEAD, LAG

Advanced SQL

10 problems

CASE, COALESCE, NULLIF, recursive CTEs

DML

4 problems

INSERT, UPDATE, DELETE

DDL

3 problems

CREATE, ALTER, DROP

Enhance your SQL proficiency through hands-on practice with real-world scenarios.

Prepare for technical interviews with problems commonly asked by top companies.

Understand SQL optimization techniques and database design principles.