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5 kyu
SQL Basics: Simple Hierarchical structure
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5 kyu
SQL Basics: Group By Day
7,289jhoffner
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4 kyu
Calculating Month-Over-Month Percentage Growth Rate
2,309pmatseykanets
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5 kyu
SQL Basics: Simple PIVOTING data
2,756matt c
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5 kyu
Using LATERAL JOIN To Get Top N per Group
1,966pmatseykanets
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SQL Statistics: MIN, MEDIAN, MAX
5,770matt c
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6 kyu
SQL Basics: Simple NULL handling
8,061matt c
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6 kyu
SQL Basics: Simple table totaling.
9,980matt c
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6 kyu
Analyzing the sales by product and date
2,091FArekkusu
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8 kyu
Adults only (SQL for Beginners #1)
32,520MaikelNabil
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6 kyu
SQL Basics: Top 10 customers by total payments amount
13,248jhoffner
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6 kyu
Subqueries master
1,629Javatlacati
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6 kyu
Conditional Count
7,200pmatseykanets
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6 kyu
SQL Basics: Simple WITH
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SQL Basics: Simple IN
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