Master LAG and LEAD functions for accessing previous and next row values

Calculate period-over-period changes and growth rates efficiently

Handle NULL values properly with default parameters

Implement time-series analysis patterns without complex self-joins

Use offset parameters to look multiple rows back or forward

Optimize offset function queries with proper indexing strategies

Master LAG and LEAD functions for accessing previous and next row values

Calculate period-over-period changes and growth rates efficiently

Handle NULL values properly with default parameters

Implement time-series analysis patterns without complex self-joins

Use offset parameters to look multiple rows back or forward

Optimize offset function queries with proper indexing strategies