LEAD, LAG, FIRST_VALUE, LAST_VALUE: Overview

Master all four offset functions: LAG, LEAD, FIRST_VALUE, and LAST_VALUE

Understand window frame specifications and their impact on results

Compare current values to first and last values in partitions

Implement baseline analysis and boundary comparisons

Handle complex time-series patterns with multiple offset functions

Optimize queries using proper frame specifications and indexing

Master all four offset functions: LAG, LEAD, FIRST_VALUE, and LAST_VALUE

Understand window frame specifications and their impact on results

Compare current values to first and last values in partitions

Implement baseline analysis and boundary comparisons

Handle complex time-series patterns with multiple offset functions

Optimize queries using proper frame specifications and indexing