Dec 11, 2022 · To access a MySQL or MariaDB database from within the JavaScript code of a Node-RED function node, you can use the node-red-node-mysql package. This package provides a Node-RED node that you can use to execute SQL queries and retrieve the results from within your JavaScript code.

Oct 12, 2019 · In essence I need a way to save / retrieve values from the database inside my function node (to access stored data, or update stored data). I've tried using node.send to dynamically generate the topic payload for the MySQL node (sent via a dedicated output), but it's way too quirky and complex generating the query strings.

Jun 23, 2018 · By executing a Query in a functional node of Node-Red, how can I refer the rusult of the Query inside the same node? We are attaching our node. Or objectives is to create an automatic library, with this problem, we can not insert more than one equal book, with different ID.

Dec 31, 2023 · 1. Drag the new MySQL node into the flow editor like the below screenshot. Configure the below things. Localhost, Port, Username, and password of a MySQL Database. 2.Drag function node. Configure function node to write SQL query. 3. Drag inject input node and Debug output node into flow editor and connect nodes like the below.

Make the functions of list tables and columns available without deploying the connection node. In the Query constructor, in case using an enum, transform the checkbox to radios for operations like "equal".

This Example shows how to use node-red-contrib-mssql to SELECT, UPDATE, and INSERT data into Microsoft SQL Server. Blog post and video walkthrough found at http://www.electronhacks.com/2017/04/using-microsoft-sql-server-with-node-red-and-mqtt/ Note: some third-party nodes may appear with blank styling, and …

Jan 18, 2023 · The better way to do a request is enter the SQL in the mssql node & use parameters Example.. SELECT * FROM [Dev].[dbo].[MQTTData] WHERE Timestamp BETWEEN (@startDate AND @endDate)

Sep 14, 2018 · edited I'm getting a string variable from a plc in node red via node "s7", the variable should be inserted into a MySQL DB, through the function node I tried to create a "insert into" query but in...

Jul 19, 2022 · Here two simple methods to inject sql query command in node red are illustrated. One is use the inject node and the other is to use the function node. The following shows inject node and mysql node.