Skip to content. Copy link crimsonhawk009 commented Dec 15, 2017. Using Node to export MySQL query results to a file as JSON - node-mysql2json.js. This tutorial will use the "mysql" module, downloaded from NPM. Install MySQL Driver. lusvelt changed the title Query typeof result is object instead of array Query result is array of RowDataPackets instead of array of objects Dec 13, 2017. lusvelt reopened this Dec 13, 2017. When executing a query, a result object is returned. To access a MySQL database with Node.js, you need a MySQL driver. To download and install the "mysql" module, open the Command Terminal and execute the following: This is a node.js driver for mysql. A pure node.js JavaScript Client implementing the MySQL protocol. In Node.js, async things like network tasks are done using callback, which means that standard statements like return do not function. node-mysql: A node.js module implementing the MySQL protocol. Example to insert multiple records is : connection.query("INSERT INTO TABLE (COLUMN1,COLUMN2) VALUES ? ", [RECORDS], CALLBACK_FUNCTION). - In this example we select all records with ID between 1 and 4 from the "friends"table, and display the return object: It is written in JavaScript, does not require compiling, and is 100% MIT licensed. Piping results with Streams. The result object contains information about how the query affected the table. - The Result Object - Output data from Select result in HTML Table Selecting From a MySQL Table To select data from a table in MySQL database, use the "SELECT" statement. The steps for querying data in the MySQL database from a node.js application are as follows: Establish a connection to the MySQL database server. The result object returned from the example above looks like this: { fieldCount: 0, affectedRows: 14, This is a standard part of Node.js and you may want to look up some good introductions on Node.js callback to get you started :) As an immediate example for you, you would do the following to access your results: Node.js MySQL INSERT INTO Query - Examples - In this tutorial, learn to insert one or more records into MySQL Table from NodeJS program, and to access the properties of Result Object. pool.getConnection(function(err, connection) { var newClass = req.body; var query = `INSERT INTO classes SET ? Node-mysql is probably one of the best modules used for working with MySQL database and the module is actively maintained. Execute a SELECT statement and process the result set. This is the result using console.log(results): [ RowDataPacket { first_name: } ] – user8405795 Aug 2 '17 at 18:12 It provides all most all connection/query from MySQL. Star 10 Fork 4 The result object returned from the example above looks like this: { fieldCount: 0, affectedRows: 1, Close the database connection. The result object contains information about how the query affected the table. Just like with the single columns you specify a column and its new value, then another set of column and values. In this Node.js Tutorial – Node.js MySQL – Node.js MySQL SELECT FROM query, we have learnt to fetch records of table from MySQL database, and to use result object and fields object. This is a node.js driver for mysql. Summary: in this tutorial, you will learn how to query data from a table in MySQL from a node.js application. Here is the syntax to update multiple values at once using UPDATE statement. The Result Object. karmadude / node-mysql2json.js. Once you have MySQL up and running on your computer, you can access it by using Node.js. Hello wrangler, thank you for your answer. node-mysql: A node.js module implementing the MySQL protocol. 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