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5 kyu
Calculating Running Total
4,579pmatseykanets
Completed Languages:
4 kyu
Calculating Month-Over-Month Percentage Growth Rate
2,333pmatseykanets
Completed Languages:
6 kyu
Present XML data the SQL way
485FArekkusu
Completed Languages:
8 kyu
Is it even?
72,593JoniWeiss
Completed Languages:
8 kyu
DNA to RNA Conversion
146,554torret
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8 kyu
Area of a Square
19,732romerojp
Completed Languages:
4 kyu
Challenge: Two actors who cast together the most
3,273pmatseykanets
Completed Languages:
5 kyu
Count IP Addresses
28,320xDranik
Completed Languages:
5 kyu
Restoring from history
103FArekkusu
Completed Languages:
6 kyu
Subqueries master
1,639Javatlacati
Completed Languages:
6 kyu
SQL Basics: Simple PIVOTING data WITHOUT CROSSTAB
3,333marko-bekhta
Completed Languages:
5 kyu
SQL Basics: Simple PIVOTING data
2,777matt c
Completed Languages:
6 kyu
Calculating Batting Average
5,451AdamRFSwayze
Completed Languages:
6 kyu
Analyzing the sales by product and date
2,105FArekkusu
Completed Languages:
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SELECT prime numbers
2,524sq6jnx
Completed Languages:
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