A window function can access data from multiple ... Window functions in SQL, unlike aggregate functions, operate over a defined set of rows related to the current row, allowing for complex ...

What is an SQL Window Function? A window is a set of rows or ... A window is defined using the OVER() clause in SQL. Functions are predefined in SQL and you use them to perform operations on ...

How to make existing aggregate functions work as window function How to handle duplicate sort key (field values in ORDER BY, will elaborate shortly) For the first problem, a wrapper class ...