We use ODBC to connect to DB2 for i from .NET apps. However, after connecting, we call DB2 SQL stored procedures instead of operating on DB2 tables directly. People feel differently about it, but we feel using a stored procedure is a little more secure. Your call based on your circumstances regarding the use of stored procedures.

It also matters whether or not you use .NET Core versus the old .NET Framework. If you look at the IBM support page for getting started with IBM Data Server Drivers (https://www.ibm.com/support/pages/getting-started-ibm-data-server-drivers) , you will see that some of the driver packages are for .NET Framework only--not for .NET Core. .NET Framework will still be around for a while. However, it is getting out of date. .NET Core has gone through three major revisions and is now at .NET Core 3. .NET Core 3 is being supplanted by .NET 5, which is based on .NET Core 3 and incorporates Mono and Xamarin from what I have read. .NET 5 previews have already been released. Microsoft recommends moving away from .NET Framework for new development. Again, though, your call based on your circumstances.

Thanks,

Kelly Cookson
Senior Software Engineer II
Dot Foods, Inc.
217-773-4486 ext. 12676
www.dotfoods.com

-----Original Message-----
From: OpenSource <opensource-bounces@xxxxxxxxxxxxxxxxxx> On Behalf Of Mark Waterbury
Sent: Thursday, July 23, 2020 7:49 PM
To: IBMi Open Source Roundtable <opensource@xxxxxxxxxxxxxxxxxx>
Subject: [EXTERNAL] Re: [IBMiOSS] C#.Net connection to DB2

I believe the older Client Access for Windows has an ADO.NET provider that works with ODBC.

And, I believe the newer Access Client Solutions for Windows also has an ODBC driver.

Hope that helps ...

I expect you should see a reply from Calvin soon ... :-)


On Thursday, July 23, 2020, 8:39:14 PM EDT, smith5646midrange@xxxxxxxxx <smith5646midrange@xxxxxxxxx> wrote:





This was originally posted to the technical list and it was suggested that I post to the open source list.



I am playing with a concept and I need to connect to an IBM i database with a C#.Net desktop program.  Pretty much everything I have found via Google is either 10 years old or involves configuration on the PC (something about db2cli writecfg).  Other databases such as MySQL have a .dll that allows connection without any PC config.  Does such a thing exist for the IBM i and I just haven't hit the right web page?  What is the preferred method of connecting from a C#.Net program?



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