It allows you to interact with a PostgreSQL database easily and efficiently. Node-Postgres is a popular PostgreSQL client library for Node.js. We'll also implement some important mechanisms like singleton, repository, query on two databases for read and write, and a reconnect mechanism when disconnected from the database. We'll apply it to a real project, making it easy to understand, flexible, and scalable. In this article, we'll walk you through a step-by-step guide on using node-postgres with Node.js Express. Table.Hi, I'm Tuan, a Full-stack Web Developer from Tokyo 😊.įollow my blog to not miss out on useful and interesting articles in the future. With the sql module we mustĭefine the user table using sql.define. This code accomplishes the same thing as the pg-format. ' use strict ' const pg = require ( ' pg ' ) const sql = require ( ' sql ' ) let usersToInsert = [ run () Using pg-format to insert multiple rows with Node Postgres

To introduce you to for inserting multiple rows in one query.

Parameterized queries that ship with node-postgres do not. So Postgres supports inserting multiple rows in one query. Node and Postgres both support streams they are a potent combo for Help copy large amounts of data into Postgres utilizing streams.

Brian Carlson, author + maintainer of node-pg, has a module to But eventually, this technique may strain both your node process and your Postgresĭatabase. Thousands of rows depending on how many columns you have. You may be wondering how many rows can you insert with one query?Īccording to the PostgreSQL 9.5 docs a query has about 1GB of memory to This query inserts two rows into the table users. INSERT INTO 'users' ( 'email' ) VALUES ( ), ( )

Node postgres