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Query Teradata Data as a MySQL Database in Node.js

Execute MySQL queries against Teradata data from Node.js.

You can use the CData Cloud Hub to query Teradata data through a MySQL interface. Follow the procedure below to create a virtual database for Teradata in the Cloud Hub and start querying using Node.js.

The CData Cloud Hub provides a pure MySQL, cloud-to-cloud interface for Teradata, allowing you to easily query live Teradata data in Node.js — without replicating the data to a natively supported database. As you query data in Node.js, the CData Cloud Hub pushes all supported SQL operations (filters, JOINs, etc) directly to Teradata, leveraging server-side processing to quickly return Teradata data.

Create a Virtual MySQL Database for Teradata Data

CData Cloud Hub uses a straightforward, point-and-click interface to connect to data sources and generate APIs.

  1. Login to Cloud Hub and click Databases.
  2. Select "Teradata" from Available Data Sources.
  3. Enter the necessary authentication properties to connect to Teradata.

    To connect to Teradata, provide authentication information and specify the database server name.

    • User: Set this to the username of a Teradata user.
    • Password: Set this to the password of the Teradata user.
    • DataSource: Specify the Teradata server name, DBC Name, or TDPID.
    • Port: Specify the port the server is running on.
    • Database: Specify the database name. If not specified, the default database is used.
  4. Click Test Database.
  5. Click Privileges -> Add and add the new user (or an existing user) with the appropriate permissions.

With the virtual database created, you are ready to connect to Teradata data from any MySQL client.

Query Teradata from Node.js

The following example shows how to define a connection and execute queries to Teradata with the MySQL module. You will need the following information:

  • Host name, or address, and port: The address of your instance of the Cloud Hub (myinstance.cdatacloud.net) and the port (3306)
  • Username and password: The username and password of a user you authorized on the Cloud Hub
  • Database name: The database you configured for Teradata (teradatadb)

Connect to Teradata data and start executing queries with the code below:

var mysql      = require('mysql');
var fs         = require('fs');
var connection = mysql.createConnection({
  host     : 'myinstance.cdatacloud.net',
  database : 'teradatadb',
  port	   : '3306',
  user     : 'admin',
  password : 'password',
  ssl      : {
    ca : fs.readFileSync('C:/certs/myCA.pem')
  }
});
connection.connect();
connection.query('SELECT * FROM NorthwindProducts', function(err, rows, fields) {
  if (err) throw err;
  console.log(rows);
});

connection.end();