teradata

v0.1.1

Published

2 years ago

Simple node-jdbc wrapper for teradata with promisified functions

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gantrim

teradata database jdbc

node-teradata

Simple node-jdbc wrapper for teradata with promisified functions

NOTE: I do not claim ownership of, and will not support the teradata jdbc drivers. This package is in no way endorsed by teradata

A simple module to make working with teradata connections in node easier. Most of the work is done by the awesome node-jdbc module. I have simply provided a wrapper to save some time. It allows you to run queries against a teradata database. This wrapper returns bluebird promises to avoid nested callbacks. This module mostly follows the node-jdbc syntax for executing queries.

Setup

Add teradata jars to your Project:

Download Drivers
Create a directory named "jars" at the root of your project
Extract downloaded drivers
Copy "tdgssconfig.jar" and "terajdbc4.jar" into the newly created jars directory

** Alternatively you can make use of the teradataJarPath option and store your jars wherever you like

Install module

npm install teradata

NOTE: on OSX 10.10 with java 8.60 I had to set the CXX environment variable:

export CXX=gcc

then:

npm rebuild

Include module:

var Teradata = require("teradata");

Connect:

Teradata.connect('[url]' ,'[user]', '[password]')
    .then(function () {    
        // you are now connected
     });

You can also specify some options when connecting:

var options = {
    verbose: true,
    teradataJarPath: "[path-to-teradata-jdbc-drivers-directory]"
};
Teradata.connect('[url]' ,'[user]', '[password]')
    .then(function () {    
        // you are now connected
     });

verbose: turns on logging within the teradata package. can be useful for debugging

teradataJarPath: Allows you to store your downloaded Teradata JDBC jars somewhere other than the root of your project directory

Disconnect:

Teradata.disconnect()
    .then(function () {    
        // you are now disconnected
     });

Example Insert

Make sure to change the url, username, password, and insert query. Call .executeUpdate(query) for updates and inserts

    var Teradata = require("teradata");
        
    Teradata.connect('[url]' ,'[user]', '[password]')
        .then(function () {       
            return Teradata.executeUpdate("[insert query]");
        })
        .then(function (update count) {
            console.log("Updated %d records", updateCount);
            return Teradata.disconnect();
        });

Example Select

Make sure to change the url, username, password, and select query. You can also optionally set a limit by changing [limit]

     var Teradata = require("teradata");
         
     Teradata.connect('[url]' ,'[user]', '[password]')
         .then(function () {       
             return Teradata.executeQuery("[select query]", [limit]);
         })
         .then(function (update count) {
             console.log("Updated %d records", updateCount);
             return Teradata.disconnect();
        });