DBD::Adabas -- DBD module interfacing the Adabas D database. This module is based on DBD::ODBC: $Id: README,v 1.1 1998/08/20 11:31:14 joe Exp $ Copyright (c) 1994,1995,1996,1997,1998 Tim Bunce portions Copyright (c) 1997,1998 Jeff Urlwin portions Copyright (c) 1997 Thomas K. Wenrich portions Copyright (c) 1998 Jochen Wiedmann You may distribute under the terms of either the GNU General Public License or the Artistic License, as specified in the Perl README file. WARNING: ======== PLEASE READ THE ENTIRE README FILE CAREFULLY ! WARNING: THIS IS MOSTLY ALPHA SOFTWARE. Your mileage may vary. WHAT IS IT: =========== This is the DBD::Adabas module. In fact it is DBD::ODBC, but I (Jochen Wiedmann) have picked up the original DBD::ODBC, incorporated the changes that have been required for Adabas (and which have been included into DBD::ODBC by Jeff Urlwin in the meantime, so you even won't need changes) and modified the drivers name. The reason for installing under a separate name is this: When installing under the name DBD::ODBC, you cannot install another database driver under the same name. The optimal solution, from my point of view, would be if DBD::ODBC would offer itself to choose the module name. However, we can live with the current situation. Another reason is, that Adabas (or at least the Adabas ODBC driver) in some cases has quite strange restrictions, that make the ODBC test suite fail: For example, a LONG column must be inserted via bind_param() and not via quote(). Another example is, that GetInfo() offers a length of VARCHAR(4000), but result columns are restricted to a total length of 4048 bytes, making this size almost useless. Finally the SQLBindParam() function refuses a scale of 32768 bytes, because it is interpreted as a signed word ... lots of trouble. :-( REQUIREMENTS: ============= *BEFORE* BUILDING, TESTING AND INSTALLING this you will need to: Build, test and install Perl 5 (at least 5.004). It is very important to TEST it and INSTALL it! Build, test and install the DBI module (at least DBI 0.93). It is very important to TEST it and INSTALL it! Remember to *read* the DBI README file! BUILDING: ========= 1.) Create a file /usr/spool/sql/config/odbc.ini with the following contents: [ODBC Data Sources] test [test] ServerDB=test ServerNode= Of course you have to replace the database name "test" with your database name. 2.) Setup these environment variables: DBROOT=/opt/adabas or whereever you have installed the Adabas engine (the directories incl and lib are located in $DBROOT) DBI_DSN=DBI:Adabas:test replace "test" with your databases name, see above DBI_USER=joe A valid database user DBI_PASS=pwd joe's password export DBROOT DBI_DSN DBI_USER DBI_PASS 3.) Build the module: perl Makefile.PL make If you want to create a static perl for debugging purposes, do the following: perl Makefile.PL make make perl The last command will probably fail in the linker stage. To finish, just repeat the last $(CC) or $(LD) command and add the following flags: cc ... -L/opt/adabas/lib /opt/adabas/lib/odbclib.a -lsqlrte -lsqlptc Don't ask me why SAG is using a brain damaged library name like odbclib.a ... TESTING AND KNOWN BUGS make test You'll note that one test script will fail. As far as I know this is a bug in the ODBC driver: - Field attributes seem to be incorrect; when creating a table with CREATE TABLE $table (id integer NOT NULL, name CHAR(64), PRIMARY KEY(id)) the both fields are reported as Nullable by the ODBC driver. This breaks test 8 in t/40listfields.t. - The Adabas ODBC driver doesn't support the SQLDataSources function, although it claims to do so. To quote doc/odbcinfo/odbc3.htm: SQLDataSources The Driver Manager administers this function. However, look at this: perl -MDBI -e 'print DBI->data_sources("Adabas"), $DBI::errstr, "\n"' [SOFTWARE AG][ODBCLIB A]Driver not capable. (SQL-S1C00) (DBD: data_sources/SQLDataSources err=-1) This breaks test 2 in t/10dsnlist.t. IF YOU HAVE PROBLEMS: Do not hand edit the generated Makefile unless you are completely sure you understand the implications! Always try to make changes via the Makefile.PL command line and/or editing the Makefile.PL. You should not need to make any changes. If you do *please* let me know so that I can try to make it automatic in a later release. This software is supported via the dbi-users mailing list. For more information and to keep informed about progress you can join the a mailing list via http://www.fugue.com/dbi (if you are unable to use the web you can subscribe by sending a message to dbi-request@fugue.com, it may take a few days to be processed). Please post details of any problems (or changes you needed to make) to dbi-users@fugue.com and CC them to joe@ispsoft.de and jurlwin@access.digex.net. But note... ** IT IS IMPORTANT TO INCLUDE THE FOLLOWING INFORMATION: 1. A complete log of a all steps of the build, e.g.: perl Makefile.PL (do a make realclean first) make make test make test TEST_VERBOSE=1 (if any tests fail) 2. Full details of which software you are using, including: Perl version (the output of perl -V) It is important to check that you are using the latest version before posting. If you're not then I'm *very* likely to simply say "upgrade to the latest". You would do yourself a favour by upgrading beforehand. Please remember that I'm _very_ busy. Try to help yourself first, then try to help me help you by following these guidelines carefully. Regards, Tim, Jeff and Jochen =============================================================================== Other info: DBI 'home page': http://www.hermetica.com/technologia/DBI perldoc DBI perldoc DBD::ODBC Jeff's 'home page' : http://www.access.digex.net/~jurlwin Win32 ODBC drivers: http://www.microsoft.com/support/products/backoffice/odbc/ Follow "Microsoft ODBC Desktop Database Drivers 3.5 For 32-Bit Programs" and "ODBC Drivers for Win95 Applications". For Access use version "Access ODBC driver 3.40.2111 27/03/96" or later. End.