Using Sequelize in Node.js provides a powerful Object-Relational Mapping solution for interacting with SQL databases through JavaScript objects and methods. As the creator of CoreUI with extensive Node.js experience since 2014, I’ve implemented Sequelize in numerous enterprise applications for robust database operations and data modeling. The most efficient approach involves configuring Sequelize with database connection settings, defining models with associations, and using built-in query methods for data manipulation. This method provides type-safe database interactions while maintaining clean, maintainable code architecture with automatic SQL generation and validation.

Connecting Node.js to PostgreSQL provides robust relational database capabilities for applications requiring ACID compliance and complex queries. As the creator of CoreUI with extensive Node.js development experience since 2014, I’ve integrated PostgreSQL with Node.js in numerous enterprise applications for financial data and user management systems. The most reliable approach uses the pg library with connection pooling for optimal performance and connection management. This method ensures secure, efficient database access while handling connection failures and maintaining data consistency.