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Database package

5,372 bytes removed, 10:15, 21 March 2014
don't know who profits from the mailinglist extract?
== SQLite ==
<!-- Posted on the mailing list by Paul Dreik <> --> <pre>On 22 December 2011 20:53, Paul Dreik <> wrote:> 2011-12-21 13:02, dirk skrev:>> On Wed, 2011-12-21 at 09:34 +0100, Paul Dreik wrote:>>> 2011-12-20 23:37, skrev:>>>> Hi all ->>>> Couldn't make the database package work, and after a reasonable amount>>>> of googling I concluded I was not the only one.>>>> As a solution I made my own .oct file that queries SQLite & returns a>>>> cell array of the results; kudos to SQLite's "amalgamation" file and>>>> Octave's "mkoctfile.">>>>>>>> - is this the right forum to ask the next 2 questions?>>>> - is anyone interested in connecting SQLite to octave?>>>> - what's my next reasonable step (if any): make a package, post code>>>> somewhere (here?), or... ?>>>>>>>> thanks,>>>> dirk mayhew>>>> ps and thank you also to Xavier Delacour - I would use your code if I could>>>>>>> Hi, no you are certainly not the only one!>>> I have also made an sqlite octave package, but only for private use. I>>> think it is wise to discuss on how to implement the interface to such a>>> toolbox.>>> * should one mimic the c interface?>>> * should one mimic the perl dbi interface?>>> * mimic the matlab database interface?>>> * make a new one?>>> What is your opinion?>>>>>> This is the right place to discuss and send code suggestions.>>>>>> Paul Dreik>>>>> Thanks, Paul - those are good questions.>>>> I assume by "c interface" you mean ODBC? I believe that would be best,>> but requires more work... I suspect this is the direction Xavier took>> with his database package.>>>> Given a choice between perl, Matlab and "create your own," the community>> would probably prefer a solution that "looks like Matlab." That is,>> without a GUI and no Matlab-specific I/O, I assume.>>>> What do you think?>>> No, I mean the sqlite c interface described in> http[https://sqlitegithub.orgcom/c3refmarkuman/intro.html>> Using odbc seems to be yet another method to connect. It seems like> there is an odbc driver for sqlite.>> I know the matlab database toolbox can connect through odbc, that is how> I used it a few years ago.>>> I assembled the list below with my comments and links to documentation.>> I think the matlab database toolbox is a bit messy. It is also quite> big, so users expecting to use octave database as a dropin replacement> will probably never be satisfied unless they only use a very basic> subset. It handles multiple databases, which is good.> The documentation is at>>> I like the relatively clean interface of the sqlite c interface. This is> how I built my toolbox. (It was a while ago, so I do not remember how> closely I followed the c interface). Obviously this only supports> sqlite, so It may be a poor choise for octave database toolbox unless it> is an octave sqlite toolbox.> Documentation for api introduction is at>> I also like the perl dbi interface. It handles multiple databases, so it> may be a good example on how to make an octave interface.> An easy to read introduction exists at>>> I have never worked directly to odbc. Looking at the introductory> material on>> I say lets stick to any other method...> The good thing is that it handles multiple databases and it is cross> platform.>> The existing octave database package seems to offer both a generic> interface and wrap the database specific apis. I do not know how well it> performs. Installation failed for me two years ago or so, and it still> fails now (octave 3.4.2 from macports. See attached errors). I assume I> do not have all dependencies installed, but the errors seem to point to> other problems. Have not looked deeper into it.> I do not know if there are any plans for it or what the current status> is. Last update on> (linked to from> was 2008, but the package was released 2009.> The swig operations seem like black magic to me.>> I do not currently have the time or need to work on this now, but I am> willing to share my octave package (sqlite c interface wrapped, more or> less).  On 23 December 2011 13:42, dirk <> wrote:> On Wed, 2011-12-21 at 19:56 +0000, Carnë Draug wrote:>> Are you able to indetify what's broken in the current package?>> I am not calling it broken, but "difficult to install" or "not> self-contained" would be fair descriptions.   On 29 December 2011 16:21, dirk <> wrote:> Unfortunately the file size limit prevented me uploading the required> ] – simple sqlite3wrapper as one .c source m file; it is available via>>> The resulting .oct acts like a dedicated database server.> Functionally it mimics the existing database "sql" function, but> *without* the pre-requirements of SWIG & an additional external database> server oprogram.>> Can anyone can point me to a "beginner's guide to package creation?"> mkoctfile worked fine for me on Ubuntu and Win7, but I'd guess a tar.gz> supporting pkg install would be better/cleaner/more useful.</pre>
== redis ==
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