https://blog.rajpoot.dev/tags/database/ Recent content in Database on Manvendra Rajpoot https://blog.rajpoot.dev/img/personal/cover.png https://blog.rajpoot.dev/img/personal/cover.png Hugo en Manvendra Rajpoot Sun, 17 May 2026 17:50:46 +0530 https://blog.rajpoot.dev/textbooks/sqlalchemy/01-introduction-core-vs-orm/ Thu, 07 May 2026 06:00:00 +0530 https://blog.rajpoot.dev/textbooks/sqlalchemy/01-introduction-core-vs-orm/ Chapter 1 — SQLAlchemy 2.0 fundamentals: the unified Core/ORM API, engine, connection, the 2.0 style query. https://blog.rajpoot.dev/posts/backend/database-migrations-2026/ Sun, 03 May 2026 07:20:00 +0530 https://blog.rajpoot.dev/posts/backend/database-migrations-2026/ Database migration patterns in 2026 — expand-contract, online schema changes, pg_repack, and the discipline that prevents downtime. https://blog.rajpoot.dev/posts/backend/database-migrations-zero-downtime-2026/ Fri, 01 May 2026 00:40:00 +0530 https://blog.rajpoot.dev/posts/backend/database-migrations-zero-downtime-2026/ How to do zero-downtime database migrations in 2026 — expand-and-contract pattern, examples for adding columns, renaming, dropping, with concrete steps. https://blog.rajpoot.dev/posts/python/python-async-database-drivers-2026/ Thu, 30 Apr 2026 23:50:00 +0530 https://blog.rajpoot.dev/posts/python/python-async-database-drivers-2026/ Async Python database drivers in 2026 — asyncpg vs psycopg async, MySQL options, SQLite (aiosqlite), and which to pick by use case. https://blog.rajpoot.dev/posts/python/sqlalchemy-2-deep-patterns-2026/ Thu, 30 Apr 2026 15:50:00 +0530 https://blog.rajpoot.dev/posts/python/sqlalchemy-2-deep-patterns-2026/ SQLAlchemy 2.0 production patterns in 2026 — Mapped types, async, sessions, hybrid properties, batching, and the patterns that scale. https://blog.rajpoot.dev/posts/postgresql/distributed-sql-cockroachdb-spanner-yugabyte-2026/ Thu, 30 Apr 2026 09:50:00 +0530 https://blog.rajpoot.dev/posts/postgresql/distributed-sql-cockroachdb-spanner-yugabyte-2026/ When to reach for distributed SQL in 2026 — CockroachDB, Spanner, Yugabyte, AlloyDB, TiDB — and when single-node Postgres is still the right call. https://blog.rajpoot.dev/posts/postgresql/postgresql-mvcc-isolation-locking/ Wed, 29 Apr 2026 10:30:00 +0530 https://blog.rajpoot.dev/posts/postgresql/postgresql-mvcc-isolation-locking/ PostgreSQL MVCC, isolation levels, and locking explained for backend developers — read committed vs repeatable read vs serializable, row locks, deadlocks, and the patterns that keep transactions correct. https://blog.rajpoot.dev/posts/typescript/drizzle-orm-deep-dive-typescript-2026/ Wed, 29 Apr 2026 10:10:00 +0530 https://blog.rajpoot.dev/posts/typescript/drizzle-orm-deep-dive-typescript-2026/ A deep dive on Drizzle ORM in 2026 — schema, type-safe queries, migrations, relations, transactions, and why it's the right TypeScript ORM for new backend projects. https://blog.rajpoot.dev/posts/backend/sqlite-edge-turso-litestream-d1-2026/ Wed, 29 Apr 2026 09:20:00 +0530 https://blog.rajpoot.dev/posts/backend/sqlite-edge-turso-litestream-d1-2026/ When SQLite at the edge beats Postgres in 2026 — Turso, libSQL, Litestream, Cloudflare D1, embedded replicas, microsecond latency, and the workloads where it actually wins. https://blog.rajpoot.dev/posts/postgresql/postgresql-18-features-developers-guide/ Wed, 29 Apr 2026 09:00:00 +0530 https://blog.rajpoot.dev/posts/postgresql/postgresql-18-features-developers-guide/ PostgreSQL 18's most important features for developers — async I/O for up to 3× read perf, native uuidv7(), virtual generated columns, OAuth auth, EXPLAIN buffers by default, and the upgrade gotchas. https://blog.rajpoot.dev/posts/postgresql/postgresql-indexing-and-explain/ Tue, 28 Apr 2026 14:00:00 +0530 https://blog.rajpoot.dev/posts/postgresql/postgresql-indexing-and-explain/ A practical, hands-on guide to PostgreSQL indexing and reading EXPLAIN plans — when to add indexes, what kinds to use, and how to debug slow queries. https://blog.rajpoot.dev/posts/postgresql/postgresql-fundamentals/ Tue, 28 Apr 2026 13:00:00 +0530 https://blog.rajpoot.dev/posts/postgresql/postgresql-fundamentals/ A practical primer on PostgreSQL — the data types, indexing, transactions, and JSONB features that backend developers reach for every day. https://blog.rajpoot.dev/posts/django/connect-postgresql-with-django/ Sun, 21 Jan 2024 22:14:54 +0530 https://blog.rajpoot.dev/posts/django/connect-postgresql-with-django/ A complete walkthrough for setting up PostgreSQL and wiring it up to a Django project, including environment variables, sensible defaults, and common pitfalls.