Queries guides
How-to guides for interacting with data sources.
Advanced query options
Learn how to use advanced query options.
Perform REST API requests
Learn how to connect and query REST APIs in Retool.
Insert CSV data into a database
Learn how to build an app that writes a CSV file to a database.
Send emails
Learn how to send emails using Retool Email or your own SMTP service.
Interact with files
Learn how to store and retrieve files on data stores.
Monitor performance
Learn about the best practices for writing performant queries.
Share queries
Learn how to reuse queries with the Query Library.
Use cases
9 items
Server-side pagination
Learn how to implement server-side pagination of data.
SQL
3 items
Transform data
Learn how to write JavaScript to manipulate data.
Edit in VS Code
Connect your local Visual Studio Code development environment to Retool.
Run a workflow
The Retool Workflows query resource enables you to run a workflow from an app. This is useful for reducing complexity as it enables you to: