Advanced SQL
Window functions, CTEs, subqueries, recursive queries, lateral joins, pivot/unpivot, pagination patterns, EXPLAIN, and advanced SQL for senior engineers.
Window functions, CTEs, subqueries, recursive queries, lateral joins, pivot/unpivot, pagination patterns, EXPLAIN, and advanced SQL for senior engineers.
Deep dive into database indexing mechanisms — covering disk I/O, B-Trees, hash indexes, composite index design, geospatial indexing, inverted indexes, EXPLAIN analysis, and Spring/JPA performance.