I did some research on this and found many documents for planning and analysis of migration. Is there any document available which describes how to perform the migration? Is this something we can do ourselves as software programmers or do we need to hire a consultant?
You probably want to read this link before paying someone else :)
Related
I am using Oracle SQL Developer version 21.4.2.018.1706-x64 and I can't find the tool Data Generator.
I know that in older versions of SQL Developer it was in the Tools tab but in my version it's not... (like you can see on the picture)
In older versions the tools tab is like this:
If you know where it is, I will be very grateful.
Thank you for your time
Those are two different tools, PL/SQL Developer from Allround Automations is NOT Oracle SQL Developer.
Different products, different companies, even different user audiences. One's free, one's not. So they're similar in many ways, but not in many more.
Disclaimer: I'm the product manager for SQL Developer at Oracle.
Based on search in internet web sites, Whenever I tried to find a sample or advanced Task Flow based ADF Application created purely using Oracle Enterprise Pack for Eclipse and Glassfish I only end up with a blog entry 5 year old.
When I try to read any ebook, I end up with JDeveloper and weblogic.
When I try to read the tutorial videos from the official oracle website and oracle official YouTube channels I end up with JDeveloper and weblogic.
Does this means that there will be no support provided by oracle for OEPE and ADF Essentials?
Also the basic tutorial for OEPE is too old. Few basic Unbounded Task flow techniques are not working with OEPE and ADF Essentials.
Unfortunately the state of things is exactly as you described.
It looks like there's some sort of development occasionally going on the OEPE repository with the last change being made on 2016-12-19.
I think that some level of support will probably be provided, and frankly it's pretty much the same level of support that has been available for years - low.
Anyone that needs to make a choice (or has a choice for that matter) should take a long, hard look at the situation as it is.
At our company, we are looking at replacing a number of legacy systems that handle information from our customers into our company. Typical systems allow the user to drop an ftp file somewhere. This file will then be transformed by a number of programs and eventually end up in some kind of database. In total we have +30 different "systems" or applications that does this. And, it is more or less a mess.
We believe we lack a common system to manage these flows: triggered by upload or possible another event, register the data, create some sort of "job" (or process) from it, pass it through the variuos services/transformation programs it needs to go through, provide feedback to the customer, provide information about progress, etc to us, handle failures and so on. Sort of like Jenkins (/Hudson/CruiseControl/similar) but for information transformation jobs, rather than build jobs, and with a job beeing more of a "process instance" of a job, then the job itself (e.g. different data should trigger the job several times, running concurrently).
We are cabable of writing such software ourselves, but surely software as this exists(?) I have been googling around, and found that what we need ma possibly be "job scheduling" software or "business process management" software. However, these are all new domains for us, and I am quite uncertain to as what kind of software would fit our needs. It appears one could invest quite a deal of ressources into this type of software before
So, what I am looking for is pointers to what kind of software or systems that could solve the kind of needs we have. Preferably Open Source, Java based, running in a Java EE container or similar, but really, at this point, almost any pointer/hint will be welcomed :-)
Thanks in advance
P.S. I realise I may be out of scope for Stackexchange, but I have been unable to locate another forum where this kind of question might be answered, so I hope it is OK.
I know of the following products:
Redwood Cronacle (I worked with it 1994-1997 and it still runs). Purchase product. Oracle and C based. Strong in multiple server platforms. Embeddable.
Oracle E-business suite core. Purchase product. Oracle based. Strong for integration with the same ERP system. Weak for multiple server platforms.
Invantive Vision (I developed it :-). Purchase product. Oracle and Java based. Strong in integration with ETL (Pentaho open source). Weak for multiple server platforms. Embeddable.
Quartz Scheduler. Apache license. Java based. Worked with in 2004 or so. Strong focus on embedding.
Hi I don’t know if you will find that solution in open source or Java. It sounds like bespoke or custom software to me. I would advise you to search for a project management software developer with high level of IT and Data warehousing. Ask for bespoke and customized installations with a real time database. I think you will solve your problem with this.
I have requirements to establish a CMS system for enterprise and it has to be java based open source, I found out that liferay has CMS capabilities but I'm not able to find any detailed description of the features introduced on its CMS , also I found some people are talking about integrating Liferay with Alfresco ! does this mean that Liferay is not a complete CMS ? appreciate if anyone can guide me through this and provide me with any resources detailing liferay CMS features
Yes, Liferay has CMS features - coming from a portal background the CMS is only one of the many features delivered out of the box. A portal typically is an integration platform for any kind of application. If you ever only need CMS, it might be that "pure" CMS products offer a bit more of functionality, however, many people are very happy with the CMS functionality Liferay provides. And if you're not, it's typically easy to extend (this is the point of a portal).
Systems that start being a CMS and want to extend that with applications (who doesn't want that) typically have a different mindset - "everything is content" - and naturally your application feels a bit more like "content". The portlet standard, together with the additional APIs that you have available, is a nice way to start.
For CMSs the way to go is typically a proprietary API to extend it. In a portal, a CMS is one of the possible applications available.
Regarding Alfresco: Yes, you can combine it with Liferay. While Alfresco tends to come more from the Content-side, Liferay comes from the portal/integration side. I'd ask you to evaluate both first and see if you are missing vital features in any. Then evaluate which pain you'd like better: 1) Add the missing features you want in the system you decide for, or 2) integrate both systems and run them both. Of course, the optimum result is if only one of the two is sufficient for your requirements. Then project into the future and try to find out what you'll miss first.
There is no correct answer to this question, it all depends on your requirements, experience and ability to learn and administrate one or both of the systems.
Disclaimer: See my profile to detect my implicit bias - I hope to not stress it too much in this answer.
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Closed 10 years ago.
I'm developing a small application with C# in .NET and I want to have a small light weight database which does not use much resources.
Could you please list some of the best known light weight database softwares.
14/06/2016 Yep... still getting upvotes :-/
17/03/2014 I'm still receiving upvotes for this, be mindful of the date this was originally answered. Though the main three items listed are still entirely viable, the list will tend towards becoming stale. There are further database technologies available that are not listed.
You have a couple of immediately recognisable and free options:
SQL Server Express LocalDB
SQL Server Compact Edition
SQLite
The SQL Server Compact download comes with the ADO.NET provider that you will need to reference in code. The SQLite download might not have it so here is a link:
http://sqlite.phxsoftware.com/
All three use SQL, though likely with a few limitations / quirks. Management Studio works with Compact and LocalDB, whereas with SQLite you will need another UI tool such as SQLite Administrator:
http://sqliteadmin.orbmu2k.de/
There are NoSQL alternatives, such as:
Sterling
RavenDb
Personally I would avoid using MS Access in the face of other free options. You cannot go wrong with LocalDB, Compact, or SQLite. They are all lovely small databases that run relatively quickly in little RAM - personal preference as to the religious aspects about liking a Microsoft product I suppose :-)
I use Sterling for Windows Phone programming as it is built to use Isolated Storage. I have only seen articles on RavenDb, but I can tell you that it is a JSON based document storage framework.
Not to confuse the situation (go with SQLite, SQL Server Express LocalDB, or SQL Server Compact Edition), but there are other embedded / local databases out there, some are relational others are object-oriented:
Embedded Firebird
db4o
VistaDb
SharpHSQL
Berkeley DB
Eloquera
SiaqoDb
Not all of these are free. SQL / LINQ / in-proc support differs across them all. This list is just for curiosity.
There is now also Karvonite, however the code gallery link is broken. When it's live again I'll be looking into this one for WP7 development.
I'd recommend SQLite. We are using it for almost all of the apps we develop where I work.
It's small and compact. It does require a DLL to be in the app directory, but you don't have to have other software installed like Access or SQL Server. Also, as stated by danielkza below, "SQLite is public domain, so you don't have to worry at all about licensing." That can really make a big difference.
You can use System.Data.SQLite or csharp-sqlite to access it in a C# app using the same methods as that of SQL or OleDB.
You will also need an application to edit/manage the database. The best one in my opinion is SQLite Studio. Here are a couple more:
SQLite Admin
SQLite 2009 Pro (bottom of the page)
Update - 7/25/11 - More SQLite apps (question here on SO)
Here's more on SQLite:
SQLite on Wikipedia
Companies that use SQLite
Custom Functions:
As an addition, if you are looking in the SQLite Core Functions and don't see one you like, you can create your own custom functions. Here are a couple of examples:
From SOAnoter example
Firebird embedded can be a good choice
The embedded version is an amazing variation of the server. It is a
fully featured Firebird server packed in just a few files. It is very
easy to deploy, since there is no need to install the server.
There is some very good dot net drivers
SQL Server Compact if you want to use the official microsoft solution. This has the advantage of being able to use replication with SQL server if you need that sort of thing.
SQLite if you want to somthing very simple small and free. This is what android uses for it's internal databases so it is very well supported and there are very good .NET bindings available.
One distinct advantage of SQLite is that it is cross-platform. So if you wanted to port your application to Mono.NET then you wouldn't have any modifications to make to the database implementation.
I do not like MS Access for this solution but a lot of people have included it in their answer. It is limited due to the proprietary format and platform dependence. It does have it's advantages though. You can manipulate data easily if you have a copy of MS Access, you can build queries graphically and create macros. You can easily integrate it with the rest of MS Office.
Out of all these SQLite would be my recommendation due to it being so compact, well documented and supported by a growing army of fellow developers regardless of platform.
EDIT
I realized that there is another option that everybody here forgot to mention
So long as you don't need relational tables you could use CSV file read as a dataset via ADO.NET. (More of a lulz suggestion than anything else but would be suitable in some cases and doesn't require additional libraries for a MS deployment.
If you are building a project with .NET 4.0.2 or greater and want embedded database support, consider SQL Server Express LocalDB.
It's a relatively new addition to the Express family that features a smaller installation footprint and reduced management overhead (when compared to other editions of Express), yet it maintains the programmability aspects of SQL Server. That is, unlike Compact Edition, LocalDB does not require the installation of a separate ADO.NET provider to communicate with SQL.
See the following for more details:
SQL Express v LocalDB v SQL Compact Edition (MSDN Blogs)
SQL LocalDB vs SQL Server CE (Stack Overflow)
what about http://en.wikipedia.org/wiki/NoSQL_(RDBMS) ?
in particular MongoDB for .Net
http://www.mongodb.org/display/DOCS/Home
You could use Sql Server Express Edition as its free and is equally powerful until and unless you want functionality like mirroring etc. Have a look at this.
I've used db4o with success.
File based, large community, simple to use.
http://www.db4o.com/
Licensing Details
Free General Public License db4o is licensed under the GPL by default.
The GPL license is ideal if you plan to use db4o in house or you plan
to develop and distribute your own derivative work as free software
under the GPL as well.
Commercial License A commercial license is required if you want to
embed db4o in a commercial non-GPL product. Commercial licensees gain
access to premium services and support.
An alternative that hasn't been mentioned if you don't require it to be a free database is VistaDB. It's all managed code, provides tons of features for an embedded database, and offers pretty good performance. A pretty good bridge between SQL CE and SQL Server Express since the majority of your VistaDB stored procedures will run without modification in SQL Server Express. I've been pretty pleased with customer service at this point as well. I've been using it at work. No services to start. An empty DB is around 1MB and the DLL is pretty lightweight too. Has ADO.NET providers and such things. I liked it a good bit.
VistaDB
SQL server Compact Edition best as it is free and Light in Size and integrates Well
SQL Server Express or MS Access