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Top Forums Shell Programming and Scripting How to create and call mysql stored procedure in perl? Post 302491193 by m1xram on Thursday 27th of January 2011 01:23:36 AM
Old 01-27-2011
Common MySQL Procedure problem

Did a lot of googling and found that many people have this problem. PHP people got rid of it with the PDO interface but I found an example of a simplified answer for PERL.

First, the stored procedure must be simplified.
Code:
mysql> delimiter //
mysql> create procedure greet() 
    -> begin
    ->   select current_time() as t;
    -> end
    -> //
Query OK, 0 rows affected (0.00 sec)

Second, we call it and fetch the row.
Code:
use DBI; 
$dbh = DBI->connect("dbi:mysql:database=test","root","password"); 
$q = $dbh->prepare("call greet()"); 
$q->execute(); 
@results = $q->fetchrow(); 
print $results[0], "\n";

There's no more IN or OUT variables, that PERL can't deal with, and we got rid of the temp table. That was a tough find.

Also found a procedure which works with a parameter.
Code:
mysql> delimiter //
mysql> create procedure Foo( x int) 
    -> begin
    ->   select x*2;
    -> end
    -> //
mysql> delimiter //
Query OK, 0 rows affected (0.00 sec)

Code:
use DBI; 
$dbh = DBI->connect("dbi:mysql:database=test", "root", "password"); 
$q = $dbh->prepare("call Foo(?)"); 
$q->execute(5); 
@results = $q->fetchrow(); 
print $results[0], "\n";

 

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Catalyst::Model::DBI(3pm)				User Contributed Perl Documentation				 Catalyst::Model::DBI(3pm)

NAME
Catalyst::Model::DBI - DBI Model Class SYNOPSIS
# use the helper create model DBI DBI dsn username password # lib/MyApp/Model/DBI.pm package MyApp::Model::DBI; use base 'Catalyst::Model::DBI'; __PACKAGE__->config( dsn => 'dbi:Pg:dbname=myapp', password => '', username => 'postgres', options => { AutoCommit => 1 }, ); 1; my $dbh = $c->model('DBI')->dbh; #do something with $dbh ... DESCRIPTION
This is the "DBI" model class. METHODS
new Initializes DBI connection $self->dbh Returns the current database handle. $self->stay_connected Returns a connected database handle. $self->connected Returns true if the database handle is active and pingable. $self->connect Connects to the database and returns the handle. $self->disconnect Executes rollback if AutoCommit is active, disconnects and unsets the database handle. SEE ALSO
Catalyst, DBI AUTHOR
Alex Pavlovic, "alex.pavlovic@taskforce-1.com" COPYRIGHT
Copyright (c) 2005 - 2009 the Catalyst::Model::DBI "AUTHOR" as listed above. LICENSE
This program is free software, you can redistribute it and/or modify it under the same terms as Perl itself. perl v5.14.2 2010-01-28 Catalyst::Model::DBI(3pm)
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