Frame Specifications

Concepts: sqlWindowFrame

Frame specifications define exactly which rows participate in a window calculation. Every window function operates on a frame, and understanding frames is the key to unlocking the full power of window functions. Up to this point, you have been relying on the default frame, which extends from the beginning of the partition to the current row. That default works for running totals but fails for many other patterns. To build moving averages, trailing windows, and centered calculations, you need to take explicit control of the frame boundaries. Frame Syntax and Types Frame clauses follow a consistent syntax pattern that gives you fine-grained control over exactly which rows are included in each calculation. ROWS BETWEEN Syntax ROWS vs RANGE Common Frame Patterns Real-World Frame Patterns Movin