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Question for calling oracle function from perl

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Old 03-29-2008
Question for calling oracle function from perl
Dear Sir/Madam,

I use the following way to call the oracle stored procedure in a perl script, but I do not know how to call a oracle function by the following way ?

Code:
 # ARGV[0] is the oracle stored procedure name with parameters

  $str = "sqlplus -s <<-eof \n" .
            "$db_login \n" .
            "WHENEVER SQLERROR EXIT FAILURE; \n" .
            "EXEC @ARGV[0]; \n".
            "exit; \n".
            "EOF\n";

$return_code = system($str);

printf STDERR "$str\n";

Thanks
ili
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LEARN ABOUT DEBIAN

dbix::searchbuilder::handle::oracle

DBIx::SearchBuilder::Handle::Oracle(3pm)		User Contributed Perl Documentation		  DBIx::SearchBuilder::Handle::Oracle(3pm)

NAME

	 DBIx::SearchBuilder::Handle::Oracle - An oracle specific Handle object

SYNOPSIS

DESCRIPTION

       This module provides a subclass of DBIx::SearchBuilder::Handle that compensates for some of the idiosyncrasies of Oracle.

METHODS

   Connect PARAMHASH: Driver, Database, Host, User, Password
       Takes a paramhash and connects to your DBI datasource.

   BuildDSN
       Customized version of "BuildDSN" in DBIx::SearchBuilder::Handle method.

       Takes additional argument SID. Database argument used unless SID provided.  Two forms of DSN are generated depending on whether Host
       defined or not:

	   dbi:Oracle:sid=<SID>;host=...[;port=...]
	   dbi:Oracle:<SID>

       Read details in documentation for DBD::Oracle module.

   Insert
       Takes a table name as the first argument and assumes that the rest of the arguments are an array of key-value pairs to be inserted.

   InsertFromSelect
       Customization of "InsertFromSelect" in DBIx::SearchBuilder::Handle.

       Unlike other DBs Oracle needs:

       o   id generated from sequences for every new record.

       o   query wrapping in parens.

       NOTE that on Oracle there is a limitation on the query. Every column in the result should have unique name or alias, for example the
       following query would generate "ORA-00918: column ambiguously defined" error:

	   SELECT g.id, u.id FROM ...

       Solve with aliases:

	   SELECT g.id AS group_id, u.id AS user_id FROM ...

   KnowsBLOBs
       Returns 1 if the current database supports inserts of BLOBs automatically.  Returns undef if the current database must be informed of BLOBs
       for inserts.

   BLOBParams FIELD_NAME FIELD_TYPE
       Returns a hash ref for the bind_param call to identify BLOB types used by the current database for a particular column type.  The current
       Oracle implementation only supports ORA_CLOB types(112).

   ApplyLimits STATEMENTREF ROWS_PER_PAGE FIRST_ROW
       takes an SQL SELECT statement and massages it to return ROWS_PER_PAGE starting with FIRST_ROW;

   DistinctQuery STATEMENTREF
       takes an incomplete SQL SELECT statement and massages it to return a DISTINCT result set.

   BinarySafeBLOBs
       Return undef, as Oracle doesn't support binary-safe CLOBS

   DatabaseVersion
       Returns value of ORA_OCI constant, see "Constants" in DBI.

   SimpleDateTimeFunctions
       Returns hash reference with specific date time functions of this database for "DateTimeFunction" in DBIx::SearchBuilder::Handle.

   ConvertTimezoneFunction
       Custom implementation of "ConvertTimezoneFunction" in DBIx::SearchBuilder::Handle.

       Use the following query to get list of timezones:

	   SELECT tzname FROM v$timezone_names;

       Read Oracle's docs about timezone files:

	   http://download.oracle.com/docs/cd/B14117_01/server.101/b10749/ch4datetime.htm#i1006667

AUTHOR

       Jesse Vincent, jesse@fsck.com

SEE ALSO

       perl(1), DBIx::SearchBuilder

perl v5.14.2							    2011-09-21				  DBIx::SearchBuilder::Handle::Oracle(3pm)