Tag: Database
5 posts
-
[2026] SQL Query Optimization Practical Complete Guide | Index & Execution Plan
Index design, EXPLAIN, and common bottlenecks in N+1, joins, and subqueries. Practical guide to reducing slow queries. Focused on SQL, query optimizatio...
-
[2026] PostgreSQL vs MySQL: Schema, Transactions, Queries & Operations | Practical Comparison
PostgreSQL vs MySQL compared for schema flexibility, ACID, SQL features, replication, and ops—plus Node.js–friendly criteria to pick the right RDBMS for...
-
[2026] Sequelize ORM Complete Guide for Node.js | PostgreSQL, Models & Migrations
Sequelize ORM with Node.js: models, associations, PostgreSQL and MySQL, connection pools, transactions, migrations, and Express REST patterns—plus raw S...
-
[2026] Node.js Database Integration: MongoDB, PostgreSQL, and MySQL
Connect Node.js to MongoDB (Mongoose), PostgreSQL (pg, Sequelize), and MySQL (mysql2): connection pools, CRUD, transactions, REST examples, indexes, N+1...
-
[2026] Python Databases | SQLite, PostgreSQL, and ORMs Explained
Work with databases in Python: sqlite3, SQLAlchemy models, CRUD, relationships, and a Flask + SQLAlchemy API example—SQLite vs PostgreSQL and ORM trade-...