[Haskell-cafe] Access to Oracle database from Haskell

Lanny Ripple lanny at cisco.com
Sat Jun 21 01:42:25 EDT 2008

I had luck with this the other day using Database.HDBC.ODBC.  For
Ubuntu's Hardy I found that Oracle's worked best.
( and 11 seemed to have problems for me at least.)


Grab the basic (not basic-lite), odbc, and sqlplus (to test) zips.
The odbc_update_ini.sh should be run from inside the
instantclient_10_2 directory as root

  sudo /bin/sh odbc_update_ini.sh /

(assuming a standard unixODBC install.)  You'll also need a
tnsnames.ora file to describe your connection(s) to the DB(s).
You'll also need to define some environment variables to run against
all this.  I use a small script:

  export TNS_ADMIN=$oracle_home
  export LD_LIBRARY_PATH=$oracle_home
  [ $# = 0 ] && exit 1
  exec "$@"

Best of luck,

Steve Lihn wrote:
> You may want to check this out.
> http://www.orafaq.com/wiki/ODBC_FAQ#Where_can_one_get_ODBC_drivers_for_Oracle_and_Rdb.3F
> As Oracle is a commercial company who is not interested in open source
> historically, it is little chance that you will get robust software
> for free -- from someone with many years of Oracle DBA experience :-)
> On 6/19/08, Henning Thielemann <lemming at henning-thielemann.de> wrote:
>> Is there a way of accessing a remote Oracle database by one of the common
>> Haskell database interfaces (HaskellDB, Takusen, etc.) ? I tried to get
>> unixODBC and Oracle's Instant Client running on a Linux machine, but I'm
>> trapped in the notorious error:
>> $ isql USER -v
>> [IM004][unixODBC][Driver Manager]Driver's SQLAllocHandle on SQL_HANDLE_HENV
>> failed
>> [ISQL]ERROR: Could not SQLConnect
>> This error message is discussed in various web forums, but there seems to be
>> no systematic way to track down the problem. So I wonder whether there is
>> another way to access the Oracle data base from Haskell.
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