Master SQL step-by-step with our comprehensive curriculum. Filter by difficulty and topic to find the perfect lesson for your skill level.
Begin your journey with our beginner-friendly introduction to SQL fundamentals.
Showing 18 lessons
Learn the foundation of SQL queries by retrieving data from single tables.
Start LearningMaster the WHERE clause to filter query results based on specific conditions.
Start LearningControl data display using ORDER BY and LIMIT clauses for organized results.
Start LearningUnderstand how to handle NULL values using IS NULL and COALESCE functions.
Coming SoonSearch for patterns in text data using wildcards and the LIKE operator.
Coming SoonLearn UPPER, LOWER, CONCAT, and SUBSTRING to manipulate text data.
Coming SoonMaster INSERT statements to add new records to database tables efficiently.
Coming SoonLearn to modify existing data safely using UPDATE statements and conditions.
Coming SoonUnderstand DELETE operations and strategies to prevent accidental data loss.
Coming SoonUse COUNT, SUM, AVG, MIN, and MAX to perform calculations on data.
Coming SoonOrganize data into categories and perform aggregate calculations on groups.
Coming SoonFilter grouped results using HAVING clause and understand WHERE vs HAVING.
Coming SoonLearn about primary keys, foreign keys, and how tables connect in databases.
Coming SoonMaster INNER JOIN to combine matching records from multiple tables.
Coming SoonExplore outer joins to include unmatched records in query results.
Coming SoonLearn to embed queries within queries for complex data retrieval scenarios.
Coming SoonUnderstand database views as virtual tables to simplify complex queries.
Coming SoonLearn optimization techniques, indexes, and best practices for efficient queries.
Coming SoonApply what you've learned in our interactive SQL practice environment
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