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20. Practice - Single-Line Comments

Exercise: Add Comments

Add a comment to explain this query:

Solution

sql
1-- Select students with high marks (above 85)
2SELECT name, marks
3FROM students
4WHERE marks > 85;

More Examples

sql
1-- Filter by course
2SELECT * FROM students WHERE course = 'JavaScript';
3
4-- Get student count
5SELECT COUNT(*) FROM students; -- Total students