Generate and insert data into a Postgres database

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Important notice

This workflow is provided as-is. Please review and test before using in production.

1. Workflow Overview

This is Workflow 1 in the blog tutorial Database activity monitoring and alerting. Prerequisites A Postgres database set up and [cr...

Best for

Engineering automation workflows
beginner n8n builders looking for reusable templates

Tools used

n8n-nodes-base.cron, n8n-nodes-base.function, n8n-nodes-base.postgres

Source and attribution

This workflow is cataloged by N8N Workflows and links back to its original n8n.io source page by tanaypant.

Original n8n.io source

1.1 Workflow description

Title: Generate and insert data into a Postgres database
Workflow name: Generate and insert data into a Postgres database

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);

1.2 Logical Blocks

This catalog entry is organized from the workflow JSON. The node-level section below shows the executable blocks available for review before importing the template.

2. Block-by-Block Analysis

Block 1 - Cron

Type / Role: n8n-nodes-base.cron - cron
Config choices: Version 1

Block 2 - Function

Type / Role: n8n-nodes-base.function - function
Config choices: Version 1

Block 3 - Postgres

Type / Role: n8n-nodes-base.postgres - postgres
Config choices: Version 1

3. Summary Table

Workflow	Generate and insert data into a Postgres database
Complexity	beginner
Nodes	3
Categories	Engineering
Author	tanaypant
Published	05 May 2020

4. Reproducing the Workflow from Scratch

1. Download the workflow JSON

Use the JSON export at /data/workflows/356/356.json as the source template for this automation.
2. Import the template into n8n

Open n8n, import the downloaded JSON, and review each node before activating the workflow.
3. Configure credentials and variables

Replace placeholder credentials, API keys, webhook URLs, account IDs, and environment-specific values with your own settings.
4. Test with sample data

Run the workflow manually or in a staging workspace, inspect node output, and confirm downstream systems receive the expected data.
5. Activate and monitor

Enable the workflow only after testing, then monitor executions, errors, and rate limits during the first production runs.

5. General Notes & Resources

Review imported nodes carefully before activation. This catalog entry is intended to help you inspect the workflow structure, understand required services, and find related templates faster.

Node names, credentials, schedules, webhook paths, and external service limits may need adjustment for your workspace.

Download workflow JSON Original n8n.io source Engineering workflows

Frequently asked questions

What does Generate and insert data into a Postgres database do?

This is Workflow 1 in the blog tutorial Database activity monitoring and alerting. Prerequisites A Postgres database set up and [cr...

What do I need before importing this workflow?

Review the workflow JSON, configure any required credentials in n8n, and test the automation in a safe workspace before using it in production.

Can I customize this workflow?

Yes. Use the block-by-block analysis and the downloadable JSON to inspect each node, then adjust credentials, prompts, schedules, filters, or destinations for your Engineering use case.

tanaypant

58 workflows

Nodes

n8n-nodes-base.cron n8n-nodes-base.function n8n-nodes-base.postgres

Complexity

beginner

Published 05 May 2020

Likes 0

View on n8n.io Download Workflow

Install path: /data/workflows/356/356.json

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Generate and insert data into a Postgres database

Workflow preview

Important notice

1. Workflow Overview

Best for

Tools used

Source and attribution

1.1 Workflow description

Prerequisites

Nodes

1.2 Logical Blocks

2. Block-by-Block Analysis

Block 1 - Cron

Block 2 - Function

Block 3 - Postgres

3. Summary Table

4. Reproducing the Workflow from Scratch

1. Download the workflow JSON

2. Import the template into n8n

3. Configure credentials and variables

4. Test with sample data

5. Activate and monitor

5. General Notes & Resources

Frequently asked questions