I am trying to connect to an Oracle database from Node.js in Windows 7. Is this possible? I have not found a plugin for Node.js which will do this for Windows. Are there any recommended work arounds for this? I am guessing there is at least one other person wanting to use Node.js on Windows and needs to connect to Oracle. I'm open to simple workarounds if that is necessary. Thanks for the help.
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A simple work around is using a C++ oracle driver and exposing access to it as a c++ extension to nodeRaynos– Raynos2012-04-04 19:19:27 +00:00Commented Apr 4, 2012 at 19:19
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Do you have any recommended resources for going about that? I am suspecting I'll have to do something like that but I'm looking for guidance. Thanks for the comment.Matthew Crews– Matthew Crews2012-04-04 19:25:08 +00:00Commented Apr 4, 2012 at 19:25
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Steal the source code of similar projectsRaynos– Raynos2012-04-04 19:27:00 +00:00Commented Apr 4, 2012 at 19:27
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I'm in a similar boat, did you have any luck with this?Danny C– Danny C2012-08-01 11:13:32 +00:00Commented Aug 1, 2012 at 11:13
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I'm sorry but I didn't. Ultimately what I had to do was have a Powershell script pull that data out of the database and dump it into a CSV. I then had NodeJS pull the data into MongoDB. I'm sorry I don't have better news for you.Matthew Crews– Matthew Crews2012-08-05 15:56:29 +00:00Commented Aug 5, 2012 at 15:56
5 Answers
Do you need to connect directly from Node.js to oracle? You could write your database transactions in another language and expose them to Node.js via a web service.
2 Comments
The state of database drivers for node.js on Windows seems somewhat immature compared to the robust and highly performant database drivers we have had available in ADO.NET for years.
I would seriously consider using Edge to call C# or a CLR assembly in-process to access your database. You could write a Repository style data access layer in C# and call it from node.js.
I have proven this works in a development context with C#, PetaPoco (optional), .NET 4.5 and the Oracle ODP driver (Oracle.DataAccess.dll). This should also work with any database that you can talk to in .NET.
Node (server.js) example to call .NET CLR function:
var edge = require('edge');
// define CLR function proxy
var getData = edge.func({
assemblyFile: '../Repositories/bin/Debug/Repositories.dll',
typeName: 'Repositories.TestRepository',
methodName: 'GetData' // This must be Func<object,Task<object>>
});
// call proxy function
getData({ myParam:1 }, function (error, result) {
if (error) throw error;
console.log(result);
});
GetData C# looks like this (note you need to put your connection string in node.exe.config in the folder that contains node.exe):
public async Task<object> GetData(object param)
{
using (var db = new Database("NameOfConnString"))
{
return db.Fetch<dynamic>("SELECT * FROM sometable");
}
}
(Note that Oracle.DataAccess.dll needs to be in the folder that contains node.exe.)
Comments
There is a driver made by Oracle oracledb http://www.oracle.com/technetwork/database/database-technologies/node_js/oracle-node-js-2399407.html
UPDATE:
Oracle has released a node-oracledb driver on GIT that will allow a nodejs application to connect to oracle DB on windows.
1 Comment
This driver works on Window: https://npmjs.org/package/oracle
A similar question as yours here on Stack Overflow: Connect Node.js with Oracle on Windows platform
Comments
http://github.com/mariano/node-db-oracle This project aims to add oracle support to nodejs
EDIT: There is now an office nodejs driver for Oracle, by Oracle called node-oracle
https://blogs.oracle.com/opal/entry/introducing_node_oracledb_a_node