#lead Clear
Tags #php #kotlin #bash #go #sql #rust #typescript #html #java #python #files #utils #strings #http #concurrency #async #json #arrays #security #types #crypto #database #dates #format
SQL LAG / LEAD — Previous and Next Row
Access the row before (`LAG`) or after (`LEAD`) the current one, in the window's order. Perfect for "delta from previous reading", session boundaries, etc.