I want to develop small-medium size web applications.
I wanna to use Oracle apex but I am not sure that whether apex is supporting other databases( MsSql, MySql,Sqlite)
web applications will have different properties.
Developing these web applications with ASP .NET can take long time. Because you should work on UI Design, you should write stabile and flexible data access layer.
As I know in Oracle Apex,designing is more faster and easier. There are some templates so deveopers who do not have strong design knowledge can design web pages. As I know by Oracle Apex, web pages can be prepared faster than .Net.
Are there any alternative tools for other databases rather than oracle?
And do you think that oracle apex is being stabile and have a good support in OTN or other platforms?
Thanks&Regards
Oracle Application Express (APEX) runs inside an Oracle database. You can create database links from Oracle to a non-Oracle database using Heterogeneous Connectivity so that your APEX application can manipulate data stored in a non-Oracle database. But you need to have the Oracle database in place in order for APEX to run.
APEX is certainly pretty stable-- Oracle has released a number of different versions (4.0 most recently). And the underlying project has been around for a decade (it was previously HTML DB). It's got a strong development team and a very strong developer community in and around OTN. I've personally used it for a number of years and found it very productive.
There are, of course, other RAD development tools and frameworks that are not tied to the Oracle database. Ruby on Rails and PHP with one of the various PHP frameworks, for example, both have relatively strong developer communities and are not focused on Oracle. Of course, you probably won't find the most vibrant communities for these products on OTN.
Related
Is it possible to use a Microsoft Access database (.accdb) as the back-end for a Django application?
It might be possible, at least under Windows. The Django documentation contains a link to django-pyodbc, a third-party ODBC back-end that is based on pyodbc, so perhaps you could try using that with the Access ODBC driver for Windows. However, django-pyodbc appears to be coded specifically for Microsoft SQL Server, and the SQL dialects for SQL Server ("T-SQL") and Access ("Access SQL") are similar but not identical, so compatibility with Access SQL may be somewhat limited.
Also, the question remains as to whether it is a good idea to use an Access database as a back-end for a Django application. The answer to that question is "Probably not.". An Access database is generally not a good choice of back-end for a web application. In fact, Microsoft strongly recommends against using Access in web applications.
My question is if it is possible to create an interface using C++ (for windows) for accessing and inserting data into an Oracle database created with Oracle Database Express Edition. Somebody recommended me to use Java instead because "it is much simpler", or even .NET C#. But I know very little about Java. So, I would like to use C++ and some Windows API.
I read this: Creating a simple user interface to access an Oracle database but I have to mention that for this project I'm not allowed to use APEX from Oracle. It must be an web application.
Thank you very much in advance.
I am working on creating a dashboard which would access Redmine project data. This dashboard will be a consolidation of project data (delivery date, manager, start date, total issues, open issues, closed issues, bug count etc.) for all projects in the Redmine database.
Any ideas on how to do this? An SQL query to achieve this would be a good start. I have Redmine setup on my local system and can access the Redmine database.
I plan on creating an HTML5 .Net based web application. Once I figure out the queries to be used, I would write an IIS (or REST) service to fetch the desired data from the Redmine production database.
Any help/pointers would be deeply appreciated.
Regards,
Pranjal
You have basically three options:
use the REST API
develop a redmine plug-in
do some custom SQL stuff
REST API
The best you could do is to use the redmine REST API. Using it, you can fetch the data directly from redmine without any SQL queries or manipulating the server. It should even work when the redmine server is updated.
Redmine Plug-in
The next best thing is probably to develop a redmine plug-in. Your plug-in can access redmine classes (Project, User, etc.). For example, you could do something like Projects.all.map {|p| [p.id, p.identifier]} to get the id and identifier of all projects in an array. This approach is way more powerful than using the REST API, but you have to modify the redmine server (install and maintain your plug-in). A plug-in is probably more fragile when redmine changes internal structures, than the REST API.
Custom SQL stuff
I do not recommend developing custom SQL solutions, but it is an option. Such a solution is harder to develop, more fragile, harder to set up, but might offer better performance.
You can see the the redmine database structure listed in db/schema.rb. Having the right schema, you could develop your custom SQL queries and return them to your dashboard.
Think about security
Apart from the usual security stuff (which you should consider too :)), remember that redmine has a rich permission system. Consider which object you make (publicly) available. This is most important for the last two options. When using the plug-in approach, you should have a look at the User#allowed_to method.
With the little information I have about your requirements, I have the feeling that you should go for the REST API.
My company has created multiple enterprise applications over the past 15 years that now needs to gradually migrate to the web. I've created a pilot app using Django showcasing it's powers and how each legacy app can be converted.
For now the MVC architecture was the best solution proposed. Among the other architectures was a full Java stack that made use of JBPM for it's workflow management which my boss needed and asked if we could somehow make use of JBPM and preferably not some other BPM - 'cuase of it's powers.
The idea is to create multiple Django powered applications that each work on their own and then use JBPM to connect some of the Django services/views together in a workflow manner.
The question is can this be done?
I don't see why not:
Django can interact with webservices -- which is what you could use in order to interact with jBPM from the Django applications, and vice versa. A quick google implied that web services were easy enough to implement in order to interact with a Django frontend (from jBPM in this case).
I work at a company with a large SAP investment, and we also have dozens of large .Net systems (mostly internally for engineering systems), and Java platforms (mostly for external web applications). As such, we have large development shops on ABAP, C#, and Java EE.
We have decent standards for which platform to use in which domain, but we don't have a lot of clarity around when to use web UIs and when to use desktop UIs.
I've seen some excellent research on this topic in the past (like this), but I'd like something a little more structured
I'd like to build a decision tree based on best practices to help with this question.
Some of the criteria I've seen in the past include:
Is the application targeted to users
with different OS configurations?
Does the application require OS-type
functionality for sorting and editing
data? (I know that AJAX /
asynchronous JS has made possible
much richer desktop-like
functionality to web applications,
but some would argue the desktop is
still king in this area)
Will a web application be able to
provide the availability,
responsiveness, clarity, and utility
that can be delivered with a desktop
application?
I think we are seeing the separation between Web and desktop applications softened quite a bit. Rich internet applications (with Flex, Silverlight, Ajax) started this trend, and WPF with XBAP is taking the user experience of browser-based applications to another level.
It is becoming a bit more involved to have this argument, because there are now more flavors in the spectrum between Web and desktop apps.
Some more questions to ask:
What is the primary objective of the app - data manipulation, or data viewing?
What is the number of data points/records that need to be viewed/edited together on one screen?
What is the organization's IT infrastructure look like? Will they be able to accomodate new deployment models?
Will users work with a central database from remote locations?
Does the organization have a VPN infrastructure of off-site users, and how do users authenticate?
Are there existing applications that the same user group is working with, and how are these applications deployed?
Does the application need offline capabilities?
Given that they are so different, what is the skill set of the development team for web and desktop APIs?