Question

我正在尝试使用Perl脚本将XML文件作为XMLType参数传递给Oracle存储过程。

我使用的是Perl DBI和DBD::Oracle模块。

我做了我的研究并找到了如何做到这一点，但我不知道如何把所有东西放在一起以达到我想要的目的。

我是否将文件中包含的XML数据作为字符串或CLOB传递给$xml？

大多数XML解析和表更新都在存储过程中。

这是我有多远。我没有尝试执行脚本，因为我知道它不完整。

#!/usr/local/bin/perl

###############################################################################
# File Name:            load_data.pl
# Description:          Reads an input XML file and populates data into tables


use strict;

use Getopt::Std;
use DBI;
use DBD::Oracle qw(:ora_types);

# Properties file parser
#
use util::File;
use use util::DotConfigProperties;

# Generic Utilities
#
use util::GenericUtils qw(getEnv isPath isFile trim );

# Flush output buffers
#
$| = 1;

#############################################################################
# Local Variables

my %args = (
 AutoCommit => 0,
 RaiseError => 1,
 PrintError => 1
);


my $aConfig = &isFile( &getEnv('aConfig') );

# Get the DB properties and open the database connection
#

my $propObj     = new util::DotConfigProperties;
my $a_prop      = new util::File($aConfig);
$propObj->load($a_prop);

my $dbSid       = trim($propObj->getProperty('Database'));
my $user        = trim($propObj->getProperty('Username'));
my $password        = trim($propObj->getProperty('Password'));

my $dbh = DBI->connect("dbi:Oracle:$dbSid", $user, $password, \%args) or croak("Couldn't connect to database: $dbSid" . DBI->errstr);

#############################################################################
# Input file
open(RFILE,"@ARGV[0]") or die("Unable to open read file");

#
# Read in the data from input file
# 
while (<RFILE>) {

$sth = $dbh->prepare( "BEGIN My_Procedure (p_xml in xmltype,
                                           p_out_xml out xmltype,
                                           p_message out varchar2,
                                           p_result out integer); END;" );

$sth->bind_param("p_xml", **$xml**, { ora_type => ORA_XMLTYPE });
$sth->bind_param_inout( ?, \$p_out_xml, ? ); --**I am not sure what to put in place of the question marks?**
$sth->bind_param_inout( ?, \$p_message, ? );
$sth->bind_param_inout( ?, \$p_result, ? );
$sth->execute(  );
}

$dbh->commit();

###############################################################################
# Close anything open and exit

$dbh->disconnect();

exit;

更新

我做了@MichaelPiankov提到的修改并进行了一些修改。这是结果

my $xml; 
while (<RFILE>) {
  $xml.= $_;
}

my $sth = $dbh->prepare( "BEGIN My_Procedure(:p_xml,
                                           :p_out_xml,
                                           :p_message,
                                           :p_result); END;" );
$sth->bind_param(":p_xml", $xml, { ora_type => ORA_XMLTYPE });

my $p_out_xml; 
my $p_message; 
my $p_result; 

$sth->bind_param_inout(":p_out_xml", \$p_out_xml, { ora_type => ORA_XMLTYPE } ); 
$sth->bind_param_inout(":p_message", \$p_message, { ora_type => ORA_VARCHAR2 }  );
$sth->bind_param_inout(":p_result", \$p_result, { ora_type => ORA_NUMBER } );

$sth->execute(  );

print "Out_XML: $p_out_xml\n";
print "Message: $p_message\n";
print "Result: $p_result\n";

$dbh->commit();    
###############################################################################
# Close anything open and exit
$dbh->disconnect();
exit;

错误

DBD::Oracle::st execute failed: ORA-06550: line 1, column 7:
PLS-00306: wrong number or types of arguments in call to 'My_Procedure'
ORA-06550: line 1, column 7:
PL/SQL: Statement ignored (DBD ERROR: error possibly near <*> indicator at char 6 in 'BEGIN <*>My_Procedure(:p_xml,
                                           :p_out_xml,
                                           :p_message,
                                           :p_result); END;') [for Statement "BEGIN My_Procedure(:p_xml,
                                           :p_out_xml,
                                           :p_message,
                                           :p_result); END;" with ParamValues: :p_xml=OCIXMLTypePtr=SCALAR(0x9085170), :p_message=undef, :p_out_xml=undef, :p_result=undef] at load_tables.pl line 45, <RFILE> line 46947.
Out_XML:
Message:
Result:
commit ineffective with AutoCommit enabled at load_tables.pl line 51, <RFILE> line 46947.

第二次更新

我最终删除了out参数并成功加载了XML文件，这是我的目标，因为这是测试一些存储过程代码的一部分。我确实想赞扬@MichaelPiankov，因为他的代码帮助我加载了文件。

my $xml; 
while (<RFILE>) {
  $xml.= $_;
}

my $sth = $dbh->prepare( "BEGIN My_Procedure(:p_xml); END;" );
$sth->bind_param(":p_xml", $xml, { ora_type => ORA_XMLTYPE });

$sth-> execute();

Answer 1

我认为首先你应该把文件写成变量，如果不是那么大的话。接下来你应该指定绑定我把它们称为过程参数：p_xml，：p_out_xml，：p_message，：p_result，但你可以使用任何名称。你应该为输出值创建一个变量\ $ p_out_xml，\ $ p_message \ $ p_result

...
my $xml; 
while (<RFILE>) {
  $xml.= $_;
}

$sth = $dbh->prepare( "BEGIN My_Procedure (:p_xml,
                                           :p_out_xml,
                                           :p_message,
                                           :p_result); END;" );
$sth->bind_param("p_xml", $xml, { ora_type => ORA_XMLTYPE });

my $p_out_xml; 
my $p_message; 
my $p_result; 

$sth->bind_param_inout("p_out_xml", \$p_out_xml, { ora_type => ORA_XMLTYPE } ); 
$sth->bind_param_inout("p_message", \$p_message );
$sth->bind_param_inout("p_result", \$p_result);

$sth->execute(  );
...

将XML文件作为参数传递给Oracle存储过程

更新

错误

第二次更新

1 个答案: