HomeCoursesSQL Interview Preparation

AI-powered learning

Save

SQL Interview Preparation

The ultimate SQL interview guide with real-world questions from FAANG engineers. Practice CRUD, SQL functions, and challenging joins/subqueries to get interview-ready in just hours.

4.6

52 Lessons

Join 2.9 million developers at

LEARNING OBJECTIVES

An understanding of interview questions regarding SQL
Hands-on exercises to practice your skills
The ability to solve coding problems with different techniques
Familiarity with different SQL functions
A working knowledge of combining SQL queries

Learning Roadmap

52 Lessons36 Quizzes

Get Started

Get familiar with SQL interview questions and hone query writing skills through exercises.

Introduction

CRUD Operations

Unpack the core of inserting, updating, and deleting records in SQL.

Question: Insert a Record

Answer: Insert a Record

Question: Update a Value

Answer: Update a Value

Question: Delete a Record

Answer: Delete a Record

Aggregate Functions

8 Lessons

Examine SQL aggregate functions for summing, averaging, finding minimum/maximum values, and counting records.

Date and Time Functions

4 Lessons

Grasp the fundamentals of extracting, formatting, and calculating date and time values in SQL.

Filtering

4 Lessons

Solve problems in filtering SQL records using WHERE and LIKE clauses effectively.

Grouping

4 Lessons

Follow the process of grouping data using SQL GROUP BY with aggregate functions.

Sorting

4 Lessons

Practice using SQL sorting commands, filtering, aggregation, and handling NULL values.

Constraints

8 Lessons

Step through SQL constraints, ensuring data integrity with NOT NULL, UNIQUE, PRIMARY, and FOREIGN KEY constraints.

Working with JOINs

8 Lessons

Get started with mastering SQL JOIN operations to combine and retrieve data across multiple tables.

10.

Subquery

4 Lessons

Break apart essential subquery techniques and calculations for effective SQL querying.

11.

Final Remarks

Grasp the fundamentals of SQL interviews, key topics, and advanced database concepts.

Conclusion

Certificate of Completion

Showcase your accomplishment by sharing your certificate of completion.

Developed by MAANG Engineers

Every Educative lesson is designed by a team of ex-MAANG software engineers and PhD computer science educators, and developed in consultation with developers and data scientists working at Meta, Google, and more. Our mission is to get you hands-on with the necessary skills to stay ahead in a constantly changing industry. No video, no fluff. Just interactive, project-based learning with personalized feedback that adapts to your goals and experience.

ABOUT THIS COURSE

This course will help you prepare for your next SQL coding interview. Various problem statements have been provided to evaluate your knowledge and learn to write perfect queries quickly. The course starts with interview questions on basic CRUD queries. Afterward, interview questions involving different SQL functions, including aggregate and date and time functions, are posed. Then, questions related to data grouping and sorting are presented. Toward the end of the course, more challenging questions related to joins and subqueries are provided. After completing this course, you will approach your SQL interview with boosted confidence and the ability to address the interview questions with clarity and precision.

Trusted by 2.9 million developers working at companies

These are high-quality courses. Trust me the price is worth it for the content quality. Educative came at the right time in my career. I'm understanding topics better than with any book or online video tutorial I've done. Truly made for developers. Thanks

Anthony Walker

@_webarchitect_

Just finished my first full #ML course: Machine learning for Software Engineers from Educative, Inc. ... Highly recommend!

Evan Dunbar

ML Engineer

You guys are the gold standard of crash-courses... Narrow enough that it doesn't need years of study or a full blown book to get the gist, but broad enough that an afternoon of Googling doesn't cut it.

Software Developer

Carlos Matias La Borde

I spend my days and nights on Educative. It is indispensable. It is such a unique and reader-friendly site

Souvik Kundu

Front-end Developer

Your courses are simply awesome, the depth they go into and the breadth of coverage is so good that I don't have to refer to 10 different websites looking for interview topics and content.

Vinay Krishnaiah

Software Developer

Course

SQL Antipatterns: Avoiding the Pitfalls of Database Programming

Discover common SQL antipatterns, their pitfalls, and solutions. Gain insights into logical, physical, query, and application antipatterns. Learn about effective, risk-free database practices.

6 h 45 m

beginner

Course

The Art of PostgreSQL

Gain insights into PostgreSQL's robust features and high performance. Learn about SQL integration, data types, and extensions with hands-on code examples for practical application.

65 h

advanced

Course

Learn SQL from Scratch

Gain insights into SQL, explore fundamental and advanced keywords, and learn to manage tables, building a solid foundation through hands-on projects without complex programming.

10 h

beginner

Course

An Introductory Guide to SQL

Gain insights into SQL by exploring database creation, data manipulation, and advanced queries. Learn about practical applications and practice for SQL interviews to build confidence and readiness.

13 h

beginner

Course

Getting Started with SQL and Relational Databases

Gain insights into relational databases and SQL. Learn about creating, managing, and editing tables using MySQL. Explore complex queries, indexes, and join functions for efficient data handling.

9 h 40 m

beginner

Course

SQL Antipatterns: Avoiding the Pitfalls of Database Programming

beginner

6 hour 45 min

Course

The Art of PostgreSQL

advanced

65 hour

Course

Learn SQL from Scratch