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Query SAP HANA Data as a MySQL Database in Node.js

Execute MySQL queries against SAP HANA data from Node.js.

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

The CData Cloud Hub provides a pure MySQL, cloud-to-cloud interface for SAP HANA, allowing you to easily query live SAP HANA 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 SAP HANA, leveraging server-side processing to quickly return SAP HANA data.

Create a Virtual MySQL Database for SAP HANA Data

You can use any MySQL client to connect to the CData Cloud Hub and create virtual databases.

  1. Connect to the CData Cloud Hub:
    mysql --host myinstance.cdatacloud.net --user admin --password
    
  2. Once authenticated, create the virtual database for SAP HANA:
    mysql> CREATE DATABASE saphanadb
        -> DRIVER = "SAPHANA",
        -> DBURL = "User=system;Password=mypassword;Server=localhost;Database=systemdb;";
    

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

Query SAP HANA from Node.js

The following example shows how to define a connection and execute queries to SAP HANA 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 SAP HANA (saphanadb)

Connect to SAP HANA 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 : 'saphanadb',
  port	   : '3306',
  user     : 'admin',
  password : 'password',
  ssl      : {
    ca : fs.readFileSync('C:/certs/myCA.pem')
  }
});
connection.connect();
connection.query('SELECT * FROM Buckets', function(err, rows, fields) {
  if (err) throw err;
  console.log(rows);
});

connection.end();