Ad
5 kyu
Counting overlapping events
1,155qgppl
Completed Languages:
8 kyu
Return Negative
370,982Deantwo
Completed Languages:
5 kyu
SQL Basics: Simple VIEW
4,099matt c
Completed Languages:
6 kyu
SQL Basics: Simple WITH
9,259matt c
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5 kyu
SQL Basics: Group By Day
7,595jhoffner
Completed Languages:
5 kyu
SQL Statistics: MIN, MEDIAN, MAX
6,023matt c
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4 kyu
Dealing With Messy Data
1,291danicat
Completed Languages:
5 kyu
Relational division: Find all movies two actors cast in together
7,787pmatseykanets
Completed Languages:
6 kyu
SQL Basics: Simple UNION ALL
12,408matt c
Completed Languages:
6 kyu
SQL Basics: Simple IN
13,183matt c
Completed Languages:
6 kyu
SQL Basics: Simple NULL handling
8,485matt c
Completed Languages:
7 kyu
SQL: Concatenating Columns
13,926PG1
Completed Languages:
7 kyu
Easy SQL: Absolute Value and Log to Base
7,225PG1
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5 kyu
SQL Basics: Simple Hierarchical structure
2,937matt c
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6 kyu
SQL Basics: Simple PIVOTING data WITHOUT CROSSTAB
3,442marko-bekhta
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