progress.md

📊 SQL Practice Progress Tracker

Use this file to track your learning journey. Mark topics as you complete them.

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✅ Basics

• SELECT — Retrieving data from tables
• WHERE — Filtering rows
• ORDER BY — Sorting results
• LIMIT — Restricting number of rows
• DISTINCT — Removing duplicates

✅ Filtering

• LIKE — Pattern matching
• BETWEEN — Range filtering
• IN — Matching a set of values
• NULL — Handling null values

✅ Sorting & Grouping

• GROUP BY — Grouping rows
• HAVING — Filtering groups
• Aggregate Functions — COUNT, SUM, AVG, MIN, MAX

✅ Joins

• INNER JOIN
• LEFT JOIN
• RIGHT JOIN
• FULL JOIN
• SELF JOIN

✅ Advanced

• Subqueries
• CTEs (Common Table Expressions)
• Window Functions
• CASE Expressions
• Views

✅ Interview Questions

• Practice problems

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📝 Notes & Key Learnings

Date	Topic	Notes