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7 kyu
Sales Analysis for the Previous Week
222bornForThis
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7 kyu
Top-Scoring Students Across All Subjects
162bornForThis
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Top-Scoring Students for Each Subject
253bornForThis
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Easy SQL: Counting and Grouping
15,365PG1
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SQL Basics: Simple JOIN with COUNT
19,966matt c
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SQL Basics: Simple GROUP BY
22,444matt c
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SQL Basics: Simple JOIN
22,023jhoffner
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All Star Code Challenge #18
75,408shaddyjr
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Valid Parentheses
8,567Kacarott
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1. Find all active students
14,528raymartxx
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SQL Basics: Simple MIN / MAX
21,106matt c
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SQL Grasshopper: Select Columns
19,669MorganJr
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Easy SQL: LowerCase
15,752PG1
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SQL Basics: Simple DISTINCT
22,378matt c
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Easy SQL: Convert to Hexadecimal
9,730PG1
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