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5 kyu
SQL Basics: Simple Hierarchical structure
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SQL Basics: Group By Day
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4 kyu
Calculating Month-Over-Month Percentage Growth Rate
2,359pmatseykanets
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5 kyu
SQL Basics: Simple PIVOTING data
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Using LATERAL JOIN To Get Top N per Group
2,009pmatseykanets
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SQL Statistics: MIN, MEDIAN, MAX
5,871matt c
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6 kyu
SQL Basics: Simple NULL handling
8,239matt c
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6 kyu
SQL Basics: Simple table totaling.
10,207matt c
Completed Languages:
6 kyu
Analyzing the sales by product and date
2,116FArekkusu
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8 kyu
Adults only (SQL for Beginners #1)
33,555MaikelNabil
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6 kyu
SQL Basics: Top 10 customers by total payments amount
13,532jhoffner
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6 kyu
Subqueries master
1,652Javatlacati
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6 kyu
Conditional Count
7,370pmatseykanets
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6 kyu
SQL Basics: Simple WITH
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SQL Basics: Simple IN
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