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Sql joins
Problem Score Companies Time Status
Performance Improvement 50
31:02
Minimum GPA 50
38:12
Number of offers 50
35:19
Neutral Reviewers 100
25:02
Movie Character 100
35:17
Short Films 100
31:43
Sql sub queries
Problem Score Companies Time Status
Study Selection 50
9:31
Study Update 50
18:20
Study Deletion 50
12:26
Job Offers 2.0 50
26:08
Actors and their Movies 100
38:58
Basic select
Problem Score Companies Time Status
Town Selection 50
8:29
Town Queries 50
5:29
Student Query 50
8:12
Country Filtration 50
6:08
Information Selector 50
3:56
Town Of Threes 50
8:32
Aggregation
Problem Score Companies Time Status
Firefighter's Average 50
10:46
Firefighter's Sum 50
6:27
Largest Difference 50
13:46
Distance Maximizer 50
16:20
Euclid's Distance 50
18:18
Big Salary 50
21:10
5'th Highest Marks 50
23:36
Famous Books 50
27:37
Chess Tournament 50
31:47
NULL sorting 50
26:08
I hate Vowels 50
27:05
Birthdays 50
21:33
Class Average 50
20:58
Tournament 2.0 50
25:48
Job Offer 50
24:49
Next And Previous 50
21:57
Advanced select
Problem Score Companies Time Status
Conditional Work 50
22:12
Role Ordering 50
28:54
Role Player 50
16:10
Role Counter 50
16:59
Vowel Country 50
15:06
Basic join
Problem Score Companies Time Status
Engineers Joined 50
25:23
Many Tables 50
21:34
Top Performer 50
30:22
Low and High Grades 50
23:52
Same Countries 50
23:42