SQL Practice - Learn SQL
এপত কৰা ক্ৰয়
সকলো
info
৫+
ডাউনল’ড
সকলো
অধিক জানক
এই এপ্টোৰ বিষয়ে
Learn SQL by actually writing it. Every exercise runs on a real SQLite database inside your phone, so you type real queries, see real result tables and get instant feedback, with no internet connection needed.
A REAL SQL ENGINE IN YOUR POCKET
• Real SQLite runs on your device: SELECT, JOIN, GROUP BY, subqueries, CTEs, window functions, INSERT, UPDATE and DELETE
• Four practice databases (company, shop, movies, school) to explore freely
• Code editor with keyword and table/column suggestion chips
• Your result is compared with the expected answer row by row, so you see exactly what is different
• Plain-English explanations for common errors such as "no such column" or "ambiguous column name"
• Schema drawer and table diagram so you always know which columns exist
60 LESSONS IN 10 UNITS
Short concept cards with worked examples, followed by hands-on exercises:
• Selecting and filtering data (WHERE, IN, BETWEEN, LIKE, NULL)
• Sorting and pagination (ORDER BY, LIMIT, OFFSET)
• Aggregates and grouping (COUNT, SUM, AVG, GROUP BY, HAVING)
• Joins of every kind, self joins and multi-table queries
• Subqueries, CTEs and CASE expressions
• Window functions (ROW_NUMBER, RANK, running totals)
• Changing data and creating tables
150 CHALLENGES + A DAILY PUZZLE
• 50 easy, 50 medium and 50 hard challenges
• A new daily challenge every day
• Hard challenges unlock with a short optional video or with Pro
SQL INTERVIEW PREP
• 120 interview questions with clear answers
• Timed mock interview to practise answering under pressure
• Bookmark the questions you want to review again
20 PORTFOLIO PROJECTS
Multi-step projects on realistic business data, such as revenue analysis and salary benchmarking, unlocked after Unit 5 or with Pro.
BUILD A DAILY HABIT
• Pick a daily goal of lessons or challenges
• Streaks with streak freezes so one busy day does not reset your progress
• Optional daily reminder at the time you choose
PRIVATE AND OFFLINE
Your queries and progress stay on your device. No account needed.
Free with ads. A one-time Pro purchase removes ads and unlocks all hard challenges and projects. No subscription.
A REAL SQL ENGINE IN YOUR POCKET
• Real SQLite runs on your device: SELECT, JOIN, GROUP BY, subqueries, CTEs, window functions, INSERT, UPDATE and DELETE
• Four practice databases (company, shop, movies, school) to explore freely
• Code editor with keyword and table/column suggestion chips
• Your result is compared with the expected answer row by row, so you see exactly what is different
• Plain-English explanations for common errors such as "no such column" or "ambiguous column name"
• Schema drawer and table diagram so you always know which columns exist
60 LESSONS IN 10 UNITS
Short concept cards with worked examples, followed by hands-on exercises:
• Selecting and filtering data (WHERE, IN, BETWEEN, LIKE, NULL)
• Sorting and pagination (ORDER BY, LIMIT, OFFSET)
• Aggregates and grouping (COUNT, SUM, AVG, GROUP BY, HAVING)
• Joins of every kind, self joins and multi-table queries
• Subqueries, CTEs and CASE expressions
• Window functions (ROW_NUMBER, RANK, running totals)
• Changing data and creating tables
150 CHALLENGES + A DAILY PUZZLE
• 50 easy, 50 medium and 50 hard challenges
• A new daily challenge every day
• Hard challenges unlock with a short optional video or with Pro
SQL INTERVIEW PREP
• 120 interview questions with clear answers
• Timed mock interview to practise answering under pressure
• Bookmark the questions you want to review again
20 PORTFOLIO PROJECTS
Multi-step projects on realistic business data, such as revenue analysis and salary benchmarking, unlocked after Unit 5 or with Pro.
BUILD A DAILY HABIT
• Pick a daily goal of lessons or challenges
• Streaks with streak freezes so one busy day does not reset your progress
• Optional daily reminder at the time you choose
PRIVATE AND OFFLINE
Your queries and progress stay on your device. No account needed.
Free with ads. A one-time Pro purchase removes ads and unlocks all hard challenges and projects. No subscription.
Learn SQL by writing real queries offline: 60 lessons and 150 challenges
আপডে’ট কৰা তাৰিখ
বিকাশকৰ্তাসকলে আপোনাৰ ডেটা কেনেকৈ সংগ্ৰহ আৰু শ্বেয়াৰ কৰে সেয়া বুজি পোৱাৰ জৰিয়তে সুৰক্ষা আৰম্ভ হয়। ডেটাৰ গোপনীয়তা আৰু সুৰক্ষা প্ৰণালী আপোনাৰ ব্যৱহাৰ, অঞ্চল আৰু বয়সৰ ওপৰত ভিত্তি কৰি ভিন্ন হ’ব পাৰে। বিকাশকৰ্তাগৰাকীয়ে এই তথ্যখিনি প্ৰদান কৰিছে আৰু সময়ৰ লগে লগে এয়া আপডে’ট কৰিব পাৰে।
সকলো
অধিক জানকএপৰ সমৰ্থন
বিকাশকৰ্তাৰ বিষয়ে
PT HALIM BOX
halimbox026@gmail.com
Jl Kemuning 83 Rt 001/11
Kota Administrasi Jakarta Barat
DKI Jakarta 11830
Indonesia
+62 896-7357-4131
