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I am looking for a Odbc library for Fortran (gFortran/Win). There was one product available by the name f90SQL but its now discontinued. I don't want write my own API wrapper for Odbc that would take alot of time is there any opensource or even a product that would provide that service.
A quick google came up with several options:
ForDBC
flibs/odbc
windtracer ODBC Intercation
I don't know if any of these are suitable, but some are open source and you should be able to adapt to your needs.
I know I'm excavating an old question but it pops up in google search.
It is only flibs/odbc that is free software among those Oded mentioned. It lacks some nice features like column binding and it generally enforces its own API. I took an effort to generate Fortran 2003 C bindings directly from ODBC headers. fodbc is far from being complete. But simple example with sqlite3 works for me so far. It looks like tests with MS Access reading and MS Excel writing do well.
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Is there any resource of how mysql's source code (https://github.com/mysql/mysql-server) works?
Any flow diagrams related to code's folders and files.
The official docs includes a section called MySQL Internals. There are sections included about navigating the source tree and what is where.
If you can look past his blatant towing of the company line (e.g. his apparent claims that the "real" MySQL will always be better and more awesome than MariaDB or Percona, because... Oracle!) and that he seems to imply that if you make any change to the source, you have to give those changes to Oracle and should probably send them a bunch of money, too... then there is some good material to be found in a book called Expert MySQL, which includes a decent low-level view of how it works and code snippets walking you through some source code tweaks to add new functionality.
But, there is a large amount of in-line documentation embedded in the code itself.
how "source code works"? it is in sources i guess
https://en.wikipedia.org/wiki/C_(programming_language)
https://en.wikipedia.org/wiki/C%2B%2B
https://www.google.ru/search?q=flow+diagram+mysql&newwindow=1&safe=off&espv=2&biw=1600&bih=852&tbm=isch&tbo=u&source=univ&sa=X&ved=0CBsQsARqFQoTCPXHzsTD88cCFcYlcgodYHME-w&dpr=0.9#imgrc=MrlmbXUK6VPJjM%3A
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I am writing a database application in C linux. Currently I work on mysql but later we might migrate to postgres. Therefore my boss has asked my to prepare the application to be able to use either of the databases(mysql or postgres).
Is there a free api which I can use for this purpose? Or any suggestion on how best I can do this?
The official answer to that is ODBC.
If you don't like that (and let's face it, no one really does), Qt has a database access module, QtSql. Obviously, this will require you to make heavy use of Qt in your application.
If you can find drivers for your platform, ODBC was supposedly meant to provide exactly this: a platform-independent way to talk to databases.
(I say supposedly because in my experience, ODBC is such a mess that hooking up to an ODBC driver once turned out to be more difficult than just writing the code three times for three different databases.)
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I've been looking into setting up and trying out Neo4j on Amazon EC2 however I seem to have hit a road block with finding documentation that I can use.
For example, this page mentions "Clustering, High Availability and Online Backup are add-on components that manage distribution and consistency over several live or offline node spaces." However, I haven't been able to find any more information on these add-ons.
http://wiki.neo4j.org/content/Neo4j_in_the_Cloud
This seemingly key wiki page describing how to set up Neo4j seems to be missing some very information.
http://wiki.neo4j.org/content/Neo4j_Setup_HowTo
Is anyone else using this and referencing better documentation, or am I completely missing something?
You can find some related info at this link, although the setup might depend a bit your requirements. The HA support is currently in beta, we will be able to let you test it as soon as Neo4j 1.0 is out of the door, which is before end of Jan 2010.
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I am in the process of trying to graphically represent all of our server racks. So when we receive a new server we can decide where this should be put and where a specific servers currently resides.
Are there any existing software packages that stores this kind of data already? I'd prefer open source ones if there are any but anything would be helpful.
If you use nagios as monitoring application you could use NagVis to create custom status maps e.g. a rackview of your servers.
Example Screenshot
RackMonkey seems to fit your requirements too.
I had a look around at this and the solutions suggested (thanks Node) and at the moment my feeling are using one of the following:
NVentory though I'm not sure my company will want to use ruby and rails as this would be our first product using this
Rackview
Or more likely just MS Office Visio 2007 Add-in for Rack Server Virtualization however this looks like it only links to excel and hopefully I can use excel to query a database.
I will update when I have played about with these tools and see what they can provide.
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I'm using an in-house code generator in which we supply all the metadata regarding our objects, and it generates our database, and object model including validation logic. Once we load all the data in the database, we use classic ASP <% %> to build our templates. I would like to know what open-source frameworks similar to this that are out there.
Thanks!
You can also check openArchitectureWare (http://www.openarchitectureware.org/) which is Eclipse-based.
Have you looked at mygeneration? It's not exactly open source but it's free, and the scripts are totally open. The most common usage is to generate the data layer given a database schema, but you can be more creative than that.
There's also Cog, which allows you to run Python scripts inside of source files. The included Cog module allows printing into the file that it's currently working on. Cog is licensed under MIT.
Check out Star UML it's open source and has some decent code generation capabilities.
I'd also look into Eclipse Plug-in options, I'm sure they're available I just haven't worked with any.
MyGeneration Code Generator is now Open Source.