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SQL GROUP BY Clause: Single and Multiple Columns | T-SQL Course Part 8

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SQL GROUP BY Clause: Single and Multiple Columns | T-SQL Course Part 8

Learn how to transform raw, detailed data into meaningful summary reports using the SQL GROUP BY clause. In this practical tutorial, we use an Insurance Table scenario to master how to aggregate data by one or more categories. In this video, we cover: Detailed vs. Summary Data: Understanding the logic of grouping. GROUP BY with Single Column ...

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i_simplify on Instagram: "Using GROUP BY, we can divide data into groups based on the values in a column and perform calculations on each group. For example – finding the average marks of boys and girls separately! 😎 🧠 Topic Notes: Topic: SQL GROUP BY The GROUP BY keyword divides data into separate groups based on the values in a specific column. We use aggregation functions like AVG, SUM, COUNT, MAX, and MIN to perform calculations on each group. Syntax: SELECT column_name, aggregate_function

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