NoSQL & MongoDB — Complete Guide
What MongoDB is, why to use it, core concepts, data modelling, CRUD, aggregation, indexes, advanced architecture, and schema patterns. Covers beginner through senior depth.
What MongoDB is, why to use it, core concepts, data modelling, CRUD, aggregation, indexes, advanced architecture, and schema patterns. Covers beginner through senior depth.
Principal engineering guide to OpenSearch schema design (nested vs flat_object, keyword vs numeric IDs), zero-downtime Alias + sliced _reindex migrations, high-throughput Java 21 BulkIngester, multi-tenant shard _routing, and Day-2 operational runbooks.