-- Disclaimer: This template is mainly made for self-hosted users who can reach CSV files in their file system. For Cloud users, just replace the first few nodes with your file system of choice, like Google Drive or Dropbox -- How to automatically import CSV files into postgres 1、project description This workflow demonstrates how CSV file can be automatically imported into existing PostgreSQL database. Before running the workflow please make sure you have a file on the server: /tmp/t1.csv The name of the test database is db01, and you can replace it. then create table t1 create table t1(id int,name varchar(10)); And the content of the file is the following: |id|name| |-|-|-| |1|a| |2|b| |3|c| 2、Other If you want to import a custom csv file, please refer to the following methods. 2.1、Create a table in the database SQL Commands: https://www.postgresql.org/docs/current/sql-createtable.html 2.2、Upload csv file Upload csv file to N8N server and make sure it can be read.
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This is Workflow 1 in the blog tutorial Database activity monitoring and alerting. Prerequisites A Postgres database set up and credentials. Basic knowledge of JavaScript and SQL. Nodes Cron node starts the workflow every minute. Function node generates sensor data (sensor id (preset), a randomly generated value, timestamp, and notification (preset as false) ) Postgres node inserts the data into a Postgres database. You can create the database for this workflow with the following SQL statement: CREATE TABLE n8n (id SERIAL, sensor_id VARCHAR, value INT, time_stamp TIMESTAMP, notification BOOLEAN);