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7 kyu
SQL: Regex Replace
5,569PG1
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SQL Basics: Simple GROUP BY
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Count Weekdays
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4 kyu
Dealing With Messy Data
1,244danicat
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Calculating Month-Over-Month Percentage Growth Rate
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SQL Basics: Simple VIEW
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5 kyu
SQL Tuning: Function Calls
1,887danicat
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5 kyu
Using Window Functions To Get Top N per Group
2,877pmatseykanets
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5 kyu
SQL Basics: Simple Hierarchical structure
2,841matt c
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5 kyu
Relational division: Find all movies two actors cast in together
7,544pmatseykanets
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6 kyu
SQL Basics: Simple PIVOTING data WITHOUT CROSSTAB
3,358marko-bekhta
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5 kyu
SQL Basics: Simple PIVOTING data
2,801matt c
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Using LATERAL JOIN To Get Top N per Group
1,997pmatseykanets
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GROCERY STORE: Inventory
10,527baaart
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SQL Basics: Mod
16,300PG1
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