Running a script on Windows to access a postgres database on Linux

TASdvlper has asked for the wisdom of the Perl Monks concerning the following question:

All,

I was hoping this would be a easy job, but I'm a bit stuck now. Let me give you a little background on what I'm trying to accomplish.

Over the past few years I've written a web-based tool used for tracking test cases and results, it runs directly on Linux and there's a postgres db in the back end where everything is stored. I wrote a module specific for database transactions (queries, inserts, updates, etc).

Anyway, we have a automation team that are writing scripts that mostly run on Windows, I was hoping I could give them my Database module, and they would integrate it into their scripts and then they would have direct access to the database. Currently, they are writing their results out to a flat file, I thought if they could write to our database directly, it would be must more efficient and we would get results from the scripts in "real-time".

So, I write a little script on Windows, and included my db module (which I slightly modified). I installed ActivePerl 5.8 and installed the DBI module (using ppm).

But now it's complaining about a DBD::pg.pm module (see below).

install_driver(Pg) failed: Can't locate DBD/Pg.pm in @INC (@INC contai
+ns: C:
ne 3.
Perhaps the DBD::Pg perl module hasn't been fully installed,
or perhaps the capitalisation of 'Pg' isn't right.
Available drivers: DBM, ExampleP, File, PgPP, Proxy, Sponge.
 at DataBaseActions.pm line 43
[download]

I've looked in ppm, and searched on DBD and got the following:

ppm> search DBD
Searching in Active Repositories
   1. DBD-ADO                 [2.95] DBD-ADO
   2. DBD-AnyData             [0.08] DBD-AnyData
   3. DBD-Chart               [0.80] DBD-Chart
   4. DBD-CSV                 [0.22] DBD-CSV
   5. DBD-Excel               [0.06] DBD-Excel
   6. DBD-File                [0.34] DBD-File
   7. DBD-LDAP                [0.07] DBD-LDAP
   8. DBD-Log                 [0.21] DBD-Log
   9. DBD-Mimer               [1.00] DBD-Mimer
  10. DBD-Mock                [1.32] DBD-Mock
  11. DBD-Multiplex         [1.98-1] DBD-Multiplex
  12. DBD-mysql             [3.0002] DBD-mysql
  13. DBD-mysql-SimpleMySQL    [0.5] DBD-mysql-SimpleMySQL
  14. DBD-mysqlPP             [0.04] DBD-mysqlPP
  15. DBD-ODBC                [1.13] DBD-ODBC
  16. DBD-Oracle              [1.17] DBD-Oracle
  17. DBD-Ovrimos             [0.12] DBD-Ovrimos
  18. DBD-PgPP                [0.05] DBD-PgPP
  19. DBD-Redbase             [0.21] DBD-Redbase
  20. DBD-Sprite              [0.56] DBD-Sprite
  21. DBD-SQLite              [1.11] DBD-SQLite
  22. DBD-SQLite2             [0.33] DBD-SQLite2
  23. DBD-SQLrelay             [0.1] DBD-SQLrelay
  24. DBD-Template            [0.01] DBD-Template
  25. DBD-XBase              [0.241] DBD-XBase
  26. DBIx-AnyDBD             [2.01] DBIx-AnyDBD
  27. FabForce-DBDesigner4    [0.02] FabForce-DBDesigner4
ppm> install DBD-pgPP
[download]

So, at this point I'm not sure what else I can do ??? I don't see a DBD::pg.pm module. I did try to load the PgPP driver, but that didn't help.

If anybody has any ideas I would greatly appreciate it.

UPDATE:

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

ok, I've installed the DBD::PgPP driver and I'm trying to run my script, and I'm getting the following error:

DBD::PgPP::db selectall_arrayref failed: Unknown message type: ' at DataBaseActions.pm line 124.

I know my code is ok because it's the same code that runs on Linux. Any thoughts ?

Comment on Running a script on Windows to access a postgres database on Linux Select or Download Code

Replies are listed 'Best First'.
Re: Running a script on Windows to access a postgres database on Linux by zer (Deacon) on Mar 30, 2006 at 19:47 UTC
DBD::PgPP is what you need. As CPAN Says "DBD::PgPP is a Pure Perl client interface for the PostgreSQL database. This module implements network protocol between server and client of PostgreSQL, thus you don't need external PostgreSQL client library like libpq for this module to work. It means this module enables you to connect to PostgreSQL server from some operation systems which PostgreSQL is not ported. How nifty!" Since PostgreSQL doesnt appear to be ported, this should be the solution	[reply]
Re: Running a script on Windows to access a postgres database on Linux by john_oshea (Priest) on Mar 31, 2006 at 10:08 UTC
You should be able to install DBD::Pg directly using the wonderful CamelPack installer, which can compile XS modules directly on Win32. From what I recall of the DBD::Pg install process, you'll need to have access to an instance of PostgreSQL on the machine as well, as I seem to recall it asks for the path to pg_config or something. Hope that helps.	[reply]


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