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Rakshitgupta9 / Leetcode-SQL-50 Public

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Leetcode-SQL-50
Sorting_and_Grouping

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Number_of_Unique_Subjects_Taught_by_Each_Teacher.sql

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6 lines (3 loc) · 116 Bytes

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Leetcode-SQL-50
Sorting_and_Grouping

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Number_of_Unique_Subjects_Taught_by_Each_Teacher.sql

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6 lines (3 loc) · 116 Bytes

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select teacher_id , count( distinct subject_id) as cnt from teacher

group by teacher_id;

--Rakshit Gupta

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