
This course includes our updated coding exercises so you can practice your skills as you learn.
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Maximize this course by engaging with concept videos and exercises. Practice SQL across SQLite, Postgres, MySQL, and SQL Server via scripts, local setups, or onecompiler.
Master the SQL order of execution by following from, where, join, group by, having, select, order by, and limit steps, illustrated with employee and department tables.
Pivot rows to columns and unpivot columns to rows in SQL using sum with case statements and union all. This practical pattern aids interview prep and data reshaping tasks.
Master practical sql interview topics by learning to find and delete duplicates, compare union and union all, use rank, row_number, and dense_rank, and apply joins and case when updates.
Explore how count star, count 1, count 0, count minus 1, and count on a column behave, with null handling and distinct values illustrated using a department name column across twelve rows.
Preparing for SQL interviews but don’t have weeks to revise everything again?
This course is designed exactly for that situation.
Last Minute SQL Interview Prep Kit is a fast-paced, focused revision course where you go through the most important SQL concepts, patterns, and interview questions in just a few hours. Instead of teaching from scratch, this course helps you refresh what you already know and sharpen your problem-solving skills.
Each section is structured in a practical way:
Quick concept revision to reinforce fundamentals
Common SQL patterns used in interviews
Followed by quizzes and coding exercises to test your understanding
This is not about memorizing queries. It is about building the ability to identify patterns, think logically, and write solutions with confidence under time pressure.
This course is perfect for:
Anyone preparing for SQL interviews in a short time
Professionals who want a quick refresher before interviews
Students who already know basics but struggle with problem-solving
By the end of this course, you will feel more confident, faster in writing queries, and better prepared to tackle real interview questions.
If you are looking for a quick, effective revision instead of a long course, this will help you get interview-ready in the most efficient way.