All database users know about regular aggregate functions which operate on an entire table and are used with a GROUP BY clause.
But very few people use window functions in SQL. These operate on a set of rows and return a single aggregate rate for each row. Reading: How to use Window functions in SQL … https://thefartiste.com/what-are-window-functions-in-sql-server-1649974437
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All database users know about regular aggregate functions which operate on an entire table and are used with a GROUP BY clause.
But very few people use window functions in SQL. These operate on a set of rows and return a single aggregate rate for each row. Reading: How to use Window functions in SQL …
https://thefartiste.com/what-are-window-functions-in-sql-server-1649974437