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Our company just decided on Oracle as our new ERP solution. As the current in-house Developer of our WMS/ERP system (VB6/C#/ SQL/VFP) What skills, references, things to learn, words of wisdom you recommend to get a head of the curve for this supplementation.
By "Oracle is our new ERP system" do you mean you are migrating your custom code to an Oracle-database based system?
If that's the case, Oracle Database concepts guide is probably the first thing that you should get started with. There is obviously a big learning curve to this and it will take time, but as someone who understands the existing system, you are definitely at an advantage.
If you mean you are moving to a vendor based (oracle being the vendor) ERP system, there are many systems out there that Oracle has released into the market and each of them with a different technology framework and underlying components. Eg..If you are moving on to Oracle Apps 11i modules or E-Biz, Java and Oracle Database would be the underlying components that you need to concentrate on first. If the ERP system is the new Fusion Applications suite, Oracle's ADF Framework is the place to begin.
By the way, any specific reason why they have such a HUGE shift in the technology stack?
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Assuming you have a B2B marketplace where firms can buy and sell various sorts of metal (for further processing).
You want to connect your marketplace with the ERP systems of the firms so they can publish their warehouse inventory automatically.
Of course it is nearly a unlimited number of firms and they use different ERP software - many of them SAP and Oracle. Additionally there is no standard format for metal. No standard field names, no standard values among the firms. Each firm has their own format.
Do you think it is possible for your B2B marketplace startup to connect a majority of the firms to your marketplace in such a way?
What would be your approach:
Building a well documented API and hope that the firms will connect to it on their own?
Build a middleware for the most common ERP systems?
Cooperate with SAP-, Oracle- ,.., -consultancies that the firms can hire to connect them to your marketplace?
...something else?
Well, patrick15079... That is, to put it mildly, a very broad question!
If there truly is no standard format, your best bet is to create a middle-tier that does translate ERP input to some standard format you design. Then your B2B Marketplace can consume information from any system that has already been piped into your middle-tier. Quite likely someone in the industry has attempted to create a standard and you may be able to leverage off of that standard - adjusting it for your needs.
Then, for each different ERP system, you will also need to create the low-level translator that plugs into your middle-tier. Document all of this carefully and some of the ERP vendors (or consultants) could, in theory, build their own translators and be allowed to plug them into your system. What would be their motive for doing so? The classic 2-sided network conundrum.
How you go about this (your own team, consultants, etc.) depends on your overall business model and team size.
This is all very high level, but overall that would be the approach I would recommend.
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When migrating Oracle Forms and Reports, there are several options for that :
ADF
APEX
Yor suggestion ...
Which one do you think is the best in terms of business continuity and also ease of technological transition? Do you have experience in such migrations?
At the end, I would like to know if it would be necessary to migrate or just keep "Oracle Forms/Reports"
Regardless of what tool vendors might say, this is going to be an exercise in rewriting your application.
So the real questions is, why do you want to do this? Oracle are continuing to support Forms for some time yet. There are plenty of things we can do to modernize our Forms applications whilst retaining our investment in the existing software. I urge you to look at Mia Urman's presentation Give Your Forms a Facelift: Tips and Tricks for Forms UI Modernization which she gave at a UKOUG event I helped organise a couple of years ago.
If your mind is absolutely set on a re-write you'll find APEX is the easiest path for developers with a Forms/ PL/SQL background.
Update for 2018:
Oracle have been getting back behind Forms. The 12c release had over 100 new features. Okay, some are quite minor but it's a clear statement of intent. Find out more.
It's a big "it depends". ADF is a comparable alternative, while APEX is easier to learn and find resources to build.
The developer tools statement of direction is a great place to start and a while ago I provided my own commentary (http://www.grassroots-oracle.com/2012/03/on-oracles-statement-of-direction-for.html)
i think you should also check oracle JHeadStart , as mentioned in the documentation :
JHeadstart Forms2ADF Generator; creates ADF Business Components and a
JHeadstart Application Definition file based on Oracle Forms files
Hope that Helps .
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What are the advantages / disadvantages of the various Unit Testing frameworks for Oracle PL/SQL? For example:
utPLSQL
PL/Unit
Pluto
SqlDeveloper Unit Testing
any other options?
This type of question hasn't been asked in a long time so I'm looking for info that is up-to-date as of 2013.
The issue with first three is that they are not being supported by the community anymore.
If I would have to choose I would go with Steven's Feuerstein utPLSQL. His approach is always good.
Pluto - object oriented PL/SQL makes it hard to use. Guy that has written it is pretty smart but somehow the community was not interested and the project died.
Bottom line is: using files to create test cases makes it hard to maintain and share.
Oracle SQL Developer is the best what you can get for free. Easy to use interface plus the most important thing: repository. You can share your work with others and with other projects. Easy in configuration. Test cases can be create on the fly.
There is one more thing. Guys from the Oak table described Oracle SQL Developer unit testing in "Expert PL/SQL Practices". Even if it is sponsored they wouldn't describe it if it was absolute disaster.
My personal opinion.
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Are there reports or thesis about the performance of Google App Engine or other cloud platforms?
I'am writing an article about how to choose an appropriate cloud platform, and want to reference some test data.
A little work with Google may bring up some material that others have found. For instance the canonical resource for Azure benchmarking is here: http://azurescope.cloudapp.net/. However, there's not much comparative material as it really doesn't make sense.
Comparing cloud platforms solely on performance is like comparing apples with bananas with oranges. Each have their own qualities that make them appropriate for a particular kind of application.
For example, in broad terms, for multi-platform use where you have control of the underlying OS, go EC2; for a managed Windows application platform go Azure; or for a managed Java/Python platform choose App Engine. Once you've chosen the platform you can pretty much then pay for the performance you need.
Bear in mind too that "performance" means different things for different applications. The application I'm working on, for instance, relies heavily on SQL database performance. That will have a very different performance profile from (say) an application that uses a key-value pair storage system, or an application that's mostly static HTML.
So, in practice, there aren't much in the way of performance benchmarks out there because every application is different.
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Has anyone used Oracle Coherence? It looks very promising at the roadshows.
My concern is whether it's a stable and robust enough to implement mission-critical financial solutions.
I'd be grateful for any feedback on its performance, robustness and ease of maintenance.
I've had first hand experience with Oracle Coherence at two big investment banks and can say it's definitely stable. However, as with any complex piece of software it's not without it's quirks.
EDIT: Doh, just realised the question is over a year old. Oh well...
Coherence is in production at hundreds of companies. Many of the companies are large financial institutions and large consumer websites. For example, hotwire.com uses Coherence.
As with any technology, Coherence has the capability to meet your needs for performance and robustness. If you understand the technology and implement it correctly, then yes.
I've been using it for a few months now. So far, it's doing fine in production. We haven't gotten to the maintenance part yet.
Oracle Coherence is a mature product, but you need to make sure that you have the latest patches from Oracle. The point releases that are downloadable from the Oracle website have many bugs that are fixed in the patch releases.
As for development and maintenance, the learning curve is a little steeper than the documentation would suggest. I recommend the Oracle training course (or Alek Seovic's book).