Re: [Haskell-cafe] The state of database libraries

2008-07-06 Thread Don Stewart
prb:
> 
> On Jul 4, 2008, at 7:54 AM, Chris Eidhof wrote:
> 
> >1. hdbc. I'd like to connect to MySQL, so I need the ODBC backend. I  
> >couldn't get this to work under OS X, while I installed myodbc,  
> >which seems to be broken.
> 
> FWIW, I've had good luck with the SQLite3 bindings for HDBC on MacOS  
> X.  I had a bit of a hiccup with Linux, but that was only because the  
> version of SQLite on the Linux box was a bit too old.  (3.2.x versus  
> 3.4.x on the MacOS box.)  With 3.5.9 on the Linux box, everything  
> worked swimmingly.
> 
> I haven't tried the MySQL support, but I don't need it.
> 
> The timestamps on the other packages were old enough (~2007 IIRC) that  
> I didn't even try 'em.
> 
> Depending on what your application is, you might get more mileage out  
> of a binding to CouchDB or some other post-relational storage system.

The YHC guys have a simple CouchDB binding too. I was thinking this
might be a nice project to actually polish up into a comprehensive
system.

-- Don
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Re: [Haskell-cafe] The state of database libraries

2008-07-06 Thread Paul Brown


On Jul 4, 2008, at 7:54 AM, Chris Eidhof wrote:

1. hdbc. I'd like to connect to MySQL, so I need the ODBC backend. I  
couldn't get this to work under OS X, while I installed myodbc,  
which seems to be broken.


FWIW, I've had good luck with the SQLite3 bindings for HDBC on MacOS  
X.  I had a bit of a hiccup with Linux, but that was only because the  
version of SQLite on the Linux box was a bit too old.  (3.2.x versus  
3.4.x on the MacOS box.)  With 3.5.9 on the Linux box, everything  
worked swimmingly.


I haven't tried the MySQL support, but I don't need it.

The timestamps on the other packages were old enough (~2007 IIRC) that  
I didn't even try 'em.


Depending on what your application is, you might get more mileage out  
of a binding to CouchDB or some other post-relational storage system.


-- Paul
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Re: [Haskell-cafe] The state of database libraries

2008-07-05 Thread Paul Visschers
Hey Chris,

I've been fiddling around with the database stuff myself and I had the
same problems (on Linux). I eventually got both HaskellDB and HSQL to
work, and am now using HSQL because HaskellDB had very poor
documentation. I don't exactly know how I eventually got HSQL-MySQL to
work, but I think it might be the case that you need to install a MySQL
dev package first, as the haskell package only contains bindings to it.

Good Luck, Paul

P.S. It's nice to see I'm not the only one going into a Haskell frenzy
after the exams.

Chris Eidhof wrote:
> Hey everyone,
> 
> I'm figuring out how to do databases in Haskell (on OS X). So far, I've
> tried the following approaches:
> 
> 1. hdbc. I'd like to connect to MySQL, so I need the ODBC backend. I
> couldn't get this to work under OS X, while I installed myodbc, which
> seems to be broken.
> 
> 2. hsql. The packages on hackage don't compile, so I grabbed the darcs
> version. hqsl itself installed perfectly, but when I try to compile
> hsql-mysql, it does not recognize that hsql is already installed and
> tries to recompile. Compiling fails, so I generated a .tar.gz of hsql
> using cabal sdist, put it in the .cabal/packages directory in the right
> place, and finally, it does compile. Now hsql-mysql starts compiling,
> but it finally fails with:
> 
> MySQL.hsc:270:0:
>  error: ‘MYSQL_NO_DATA’ undeclared (first use in this function)
> 
> MySQL.hsc:270:0:
>  error: (Each undeclared identifier is reported only once
> 
> MySQL.hsc:270:0:  error: for each function it appears in.)
> 
> So what is the state of hsql? And haskelldb? Are they actively maintained?
> 
> Thanks,
> -chris___
> Haskell-Cafe mailing list
> Haskell-Cafe@haskell.org
> http://www.haskell.org/mailman/listinfo/haskell-cafe
> 
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Re: [Haskell-cafe] The state of database libraries

2008-07-04 Thread Alistair Bayley
2008/7/4 Chris Eidhof <[EMAIL PROTECTED]>:
>
> I'm figuring out how to do databases in Haskell (on OS X). So far, I've tried 
> the following approaches:
>
> 1. hdbc. I'd like to connect to MySQL, so I need the ODBC backend. I couldn't 
> get this to work under OS X, while I installed myodbc, which seems to be 
> broken.
>
> 2. hsql. The packages on hackage don't compile, so I grabbed the darcs 
> version.

Bummer, dude.

The only database library that directly supports MySQL is HSQL. If you
want to use another library, you'll have to get the ODBC MySQL backend
working.

Alistair
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[Haskell-cafe] The state of database libraries

2008-07-04 Thread Chris Eidhof

Hey everyone,

I'm figuring out how to do databases in Haskell (on OS X). So far,  
I've tried the following approaches:


1. hdbc. I'd like to connect to MySQL, so I need the ODBC backend. I  
couldn't get this to work under OS X, while I installed myodbc, which  
seems to be broken.


2. hsql. The packages on hackage don't compile, so I grabbed the darcs  
version. hqsl itself installed perfectly, but when I try to compile  
hsql-mysql, it does not recognize that hsql is already installed and  
tries to recompile. Compiling fails, so I generated a .tar.gz of hsql  
using cabal sdist, put it in the .cabal/packages directory in the  
right place, and finally, it does compile. Now hsql-mysql starts  
compiling, but it finally fails with:


MySQL.hsc:270:0:
 error: ‘MYSQL_NO_DATA’ undeclared (first use in this function)

MySQL.hsc:270:0:
 error: (Each undeclared identifier is reported only once

MySQL.hsc:270:0:  error: for each function it appears in.)

So what is the state of hsql? And haskelldb? Are they actively  
maintained?


Thanks,
-chris___
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