SQL Compiler for Higher Secondary Students

Quick Tips for Beginners

• Try basic commands: SELECT * FROM Students; or SELECT Name, Marks FROM Students WHERE Marks > 80;
• Use ORDER BY Marks DESC to sort results, and GROUP BY City with aggregate functions like COUNT(), AVG().
• Practice joins: SELECT s.Name, sub.Subject, sub.Score FROM Students s JOIN Subjects sub ON s.RollNo = sub.RollNo;
• You can also run INSERT, UPDATE, and DELETE statements — changes apply to the in-browser database only.
• Click Run Query to execute. Errors (like typos in column names) will appear in the output panel.