Pagination Optimization: Keyset vs Offset
Traditional OFFSET/LIMIT pagination scales linearly, turning deep page requests into database performance killers. Learn exactly why the database engine scans millions of rows before returning a single page. This video provides the system analyst's guide to mandating Keyset (cursor-based) pagination, achieving O(log N) complexity regardless of depth. We detail the required composite indexing strategies, the specific SQL syntax using compound WHERE clauses, and how to handle multi-column sorting stability. We also cover the necessary steps for encoding opaque cursors to prevent user tampering and maintain data integrity in high-traffic APIs.
00:00: Offset Pagination Performance Trap
00:41: OFFSET LIMIT Internal Mechanics
01:16: Keyset Pagination Definition
01:47: Keyset Implementation Prerequisites
02:19: Keyset SQL Syntax Example
02:56: Handling Multi-Column Sorting
03:33: Keyset Trade-offs and Limits
04:02: Cursor Security and Integrity
04:33: Mandating Keyset Implementation
##KeysetPagination ##DatabaseOptimization ##SQLPerformance ##CursorPagination ##IndexingStrategy ##SystemDesign ##ScalableAPIs