<p>In the SQL database query language, window functions allow access to data in the records right before and after the current record. A window function defines a frame or window of rows with a given length around the current row, and performs a calculation across the set of data in the window</p>

In the SQL database query language, window functions allow access to data in the records right before and after the current record. A window function defines a frame or window of rows with a given length around the current row, and performs a calculation across the set of data in the window

SQL Window Functions (OVER, PARTITION BY)

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SQL Window Functions (OVER, PARTITION BY)

SQL Window Functions (OVER, PARTITION BY)