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README.freetds
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README.freetds
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$Id: README.freetds,v 1.2 2003/04/03 19:07:00 mpeppler Exp $
Using DBD::Sybase with FreeTDS
==============================
DBD::Sybase 1.00 or later works reasonably well with FreeTDS 0.61,
but some capabilities are limited or not available.
Build process:
--------------
FreeTDS normally installs in /usr/local, with the libraries in
/usr/local/lib and the include files in /usr/local/include. This
location is assumed below.
To build DBD::Sybase you need to set the SYBASE environment variable
to /usr/local. When you now run "perl Makefile.PL" you will get
warnings for a few missing libraries:
Note (probably harmless): No library found for -lcs
Note (probably harmless): No library found for -lsybtcl
Note (probably harmless): No library found for -lcomn
Note (probably harmless): No library found for -lintl
This is OK because FreeTDS doesn't package the functions in the
same libraries as Sybase.
The "make test" process will fail for a number of tests:
Failed Test Stat Wstat Total Fail Failed List of Failed
-------------------------------------------------------------------------------
t/exec.t 0 139 ?? ?? % ??
t/main.t 16 2 12.50% 13-14
t/xblob.t 6 2 33.33% 5-6
13 subtests skipped.
This is expected.
Missing Features:
-----------------
* ?-style placeholders are not supported.
* Setting $dbh->{LongReadLen} doesn't work
Use $dbh->do("set textsize <value>") instead.
* The special text/image handling functions don't work
(i.e. ct_fetch_data(), etc).
* The $dbh->{syb_row_count} attribute doesn't work.
Use $dbh->do("set rowcount <value>") instead.
* The $dbh->{syb_quoted_identifier} attribute doesn't work.
Use $dbh->do("set quoted_identifier <value>") instead.
Bugs:
-----
FreeTDS 0.61 has a bug when executing queries that return 0 rows,
which manifests itself when trying to do a fetchrow_hashref()
after such a query with the following error:
Can't get DBI::st=HASH(0x811cfa8)->{NAME}: unrecognised attribute at...
This is fixed in the 0.62-dev version of FreeTDS.