SQL నేర్చుకోవడం Start చేయాలంటే ఏమి కావాలి?
SQL నేర్చడం కోసం మీరు కనీసం ఈ మూడు items అవసరం:
- Database Engine (example: MySQL, SQL Server, PostgreSQL)
- Query Editor (SQL queries రాయడానికి)
- Practice Data/Table Structure (ఉదాహరణ tables & records)
Tools Required:
| Tool | Description | Free? |
|---|---|---|
| MySQL | Popular open-source RDBMS | ✅ |
| SQL Server Express | Microsoft version | ✅ |
| SQLite | Lightweight DB for local use | ✅ |
| DBeaver | Universal DB Client | ✅ |
Practice SQL Without Installation (Online Editors)
| Platform | URL |
| W3Schools SQL | https://www.w3schools.com/sql/trysql.asp |
| SQLBolt | https://sqlbolt.com |
| LeetCode SQL | https://leetcode.com/problemset/database/ |
| HackerRank | https://www.hackerrank.com/domains/sql |
| Mode SQL Tutorial | https://mode.com/sql-tutorial |
Advantage: Practice directly in browser → No setup needed!
Download Sample Data to Practice
- https://github.com/datacharmer/test_db (MySQL)
- https://mode.com/sql-tutorial/ (Built-in data)
Tips for Beginners
- ఎప్పుడు SELECT query తో start చేయండి
LIMITcommand ఉపయోగించి small dataset పై practice చేయండి- Error వస్తే English message ను google లో search చేయండి
- Practise daily for 30 minutes – consistency is key
FAQs – SQL Practise ఎలా మెరుగుపరచాలి?
Q1: Installation లేకుండా నేర్చుకోవచ్చా? ➡️ అవును, browser లో practice చేసేవాటితో easy గా నేర్చుకోవచ్చు.
Q2: SQL Practise కోసం best site ఏది? ➡️ W3Schools, SQLBolt, LeetCode, HackerRank
Q3: Daily ఎంత practise చేయాలి? ➡️ 20–30 mins/day is enough to master in 30–45 days.
Q4: SQL ని నేర్చుకోవడానికి real data కావాలా? ➡️ Yes, Sample data will help to understand real-time concepts like JOINs, GROUP BY etc.
