Aabha AI
Articles
Practical explanations with worked examples and questions to try.
3 articles in SQL.
· SQL · Worked guide
SQL window functions and GROUP BY with running totals
Keep each reading session visible while calculating a separate running total for every student.
· SQL · Worked guide
SQL NULL and COUNT explained with a club survey
Five reading-club responses show why counting rows, answers and different values produces different results.
· SQL · Worked guide
WHERE and HAVING answer different questions
Eight fictional lessons show why filtering a lesson differs from filtering a subject total.