SQL
SQL EXERCISES
1) Sqlcourse2 (Theory&Exercises)
Views: 45781
- Beginner
- 30 Exercises: agregate functions, order, group by, having , boolean, joins.
2) Ram Keden
Views: 12481
- Beginner
- 14 Exercises: select, filtering, scalar functions, group by, joins, subquery, tables, DDL.
3) W3resource
Views: 10089
- Beginner – Intermediate
- 400 Exercises: sql queries, filtering, sorting, multiple tables, joins, subqueries.
4) W3Resource (PostgreSQL)
Views: 5853
- Beginner – Intermediate
- 140 Exercises
5) Stanford University
Views: 10205
- Beginner – Intermediate
- 40 Exercises: select, variables, subqueries, joins, aggregation, data modification.
6) Pgexercises (PostgreSQL)
Views: 3681
- Beginner – Intermediate
- 100 Exercises
7) SQLZoo (Theory&Quiz)
Views: 4619
- Beginner – Intermediate
- 20 Exercises: select, sum, count, joins, nulls.
8) Programmr (Login required)
Views: 1471
- Beginner – Intermediate
- 20 Exercises/projects/challenges
9) Wikibooks
Views: 3397
- Intermediate
- 60 Exercises: multiple tables queries.
10) Teach Beamers
Views: 4138
- Intermediate
- 50 Exercises
12) AMIS Tech blog
Views: 2089
- Intermediate
- 1 Challenge: Football World Cup 2014
13) Hassan Khosravi
Views: 1985
- Intermediate
- 27 Practice exams: databases
14) Techgig (Login required)
Views: 1073
- Intermediate
- 16 Skills evaluation tests
15) Burleson Consulting
Views: 1190
- Intermediate
- 7 Evaluation questions
16) Toptal
Views: 2525
- Intermediate
- 45 Interview questions
17) Vertabelo Academy
Views: 1703
- Intermediate
- 20 Interview questions. 10 Exercises
18) InterviewBit
Views: 2442
- Intermediate
- 4 Exercises & Mock interview questions: joins and sub queries.
19) Guru99
Views: 2085
- Intermediate
- 50 Theory questions
20) Pearson
Views: 945
- Intermediate
- 15 Theory questions: MySQL certification
22) ORACLE (Login Required)
Views: 887
- Intermediate
- Challenge & Quiz
23) Wonko
Views: 1264
- Intermediate – Advanced
- 50 Exercises: multiple table queries
25) MIT
Views: 1873
- Advanced
- 10 Exercises: subqueries, joins.
27) WiseOwl (ZIP download)
Views: 1507
- Beginner – Intermediate – Advanced
- 190 Exercises
28) Database System Concepts. Yale University
Views: 1558
- Beginner – Intermediate – Advanced
- 30 Exercises/Labs
29) Hacker Rank
Views: 2206
- Beginner – Intermediate – Advanced
- 20 Challenges
30) Mssqltips
Views: 1515
- Beginner – Intermediate – Advanced
- 12 SQL Server Developer questions.