SQL
01. Basic Select
- Revising the Select Query I | Problem | Solution | Score: 10
- Revising the Select Query II | Problem | Solution | Score: 10
- Select All | Problem | Solution | Score: 10
- Select By ID | Problem | Solution | Score: 10
- Japanese Cities' Attributes | Problem | Solution | Score: 10
- Japanese Cities' Names | Problem | Solution | Score: 10
- Weather Observation Station 1 | Problem | Solution | Score: 15
- Weather Observation Station 3 | Problem | Solution | Score: 10
- Weather Observation Station 4 | Problem | Solution | Score: 10
- Weather Observation Station 5 | Problem | Solution | Score: 30
- Weather Observation Station 6 | Problem | Solution | Score: 10
- Weather Observation Station 7 | Problem | Solution | Score: 10
- Weather Observation Station 8 | Problem | Solution | Score: 15
- Weather Observation Station 9 | Problem | Solution | Score: 10
- Weather Observation Station 10 | Problem | Solution | Score: 10
- Weather Observation Station 11 | Problem | Solution | Score: 15
- Weather Observation Station 12 | Problem | Solution | Score: 15
- Higher Than 75 Marks | Problem | Solution | Score: 15
- Employee Names | Problem | Solution | Score: 10
- Employee Salaries | Problem | Solution | Score: 10
02. Advanced Select
- Type of Triangle | Problem | Solution | Score: 20
- The PADS | Problem | Solution | Score: 30
- Binary Tree Nodes | Problem | Solution | Score: 30
03. Aggregation
- Revising Aggregations - The Count Function | Problem | Solution | Score: 10
- Revising Aggregations - The Sum Function | Problem | Solution | Score: 10
- Revising Aggregations - Averages | Problem | Solution | Score: 10
- Average Population | Problem | Solution | Score: 10
- Japan Population | Problem | Solution | Score: 10
- Population Density Difference | Problem | Solution | Score: 10
- The Blunder | Problem | Solution | Score: 15
- Top Earners | Problem | Solution | Score: 20
- Weather Observation Station 2 | Problem | Solution | Score: 15
- Weather Observation Station 13 | Problem | Solution | Score: 10
- Weather Observation Station 14 | Problem | Solution | Score: 10
- Weather Observation Station 15 | Problem | Solution | Score: 15
- Weather Observation Station 16 | Problem | Solution | Score: 10
- Weather Observation Station 17 | Problem | Solution | Score: 15
- Weather Observation Station 18 | Problem | Solution | Score: 25
- Weather Observation Station 19 | Problem | Solution | Score: 30
- Weather Observation Station 20 | Problem | Solution | Score: 40
04. Basic Join
- Asian Population | Problem | Solution | Score: 10
- African Cities | Problem | Solution | Score: 10
- Average Population of Each Continent | Problem | Solution | Score: 10
- The Report | Problem | Solution | Score: 20
Tutorials
01. 10 Days of Statistics
- Day 0 - Mean, Median, and Mode | Problem | Solution | Score: 30
- Day 0 - Weighted Mean | Problem | Solution | Score: 30
- Day 1 - Quartiles | Problem | Solution | Score: 30
- Day 1 - Interquartile Range | Problem | Solution | Score: 30
- Day 1 - Standard Deviation | Problem | Solution | Score: 30
- Day 4 - Binomial Distribution I | Problem | Solution | Score: 30
- Day 4 - Binomial Distribution II | Problem | Solution | Score: 30
- Day 4 - Geometric Distribution I | Problem | Solution | Score: 30
- Day 4 - Geometric Distribution II | Problem | Solution | Score: 30
- Day 5 - Poisson Distribution I | Problem | Solution | Score: 30
- Day 5 - Poisson Distribution II | Problem | Solution | Score: 30
- Day 5 - Normal Distribution I | Problem | Solution | Score: 30
- Day 5 - Normal Distribution II | Problem | Solution | Score: 30
- Day 6 - The Central Limit Theorem I | Problem | Solution | Score: 30
- Day 6 - The Central Limit Theorem II | Problem | Solution | Score: 30
- Day 6 - The Central Limit Theorem III | Problem | Solution | Score: 30
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