lead

LEAD is a window function in SQL that provides access to a row at a specified offset after the current row within a partition. It's the counterpart to the LAG function, allowing you to look ahead in your dataset rather than behind. LEAD is useful for comparing current values with future values, calculating forward-looking metrics, or analyzing trends in sequential data. Like LAG, it takes arguments for the column to offset, the number of rows to look ahead (default is 1), and an optional default value when the offset exceeds the partition's boundary.

Visit the following resources to learn more:

• @article@SQL LEAD
• @video@LAG and LEAD Window Functions in SQL