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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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DBIx::Class::Storage::DBI::mysql(3)			User Contributed Perl Documentation		       DBIx::Class::Storage::DBI::mysql(3)

NAME
DBIx::Class::Storage::DBI::mysql - Storage::DBI class implementing MySQL specifics SYNOPSIS
Storage::DBI autodetects the underlying MySQL database, and re-blesses the $storage object into this class. my $schema = MyDb::Schema->connect( $dsn, $user, $pass, { on_connect_call => 'set_strict_mode' } ); DESCRIPTION
This class implements MySQL specific bits of DBIx::Class::Storage::DBI, like AutoIncrement column support and savepoints. Also it augments the SQL maker to support the MySQL-specific "STRAIGHT_JOIN" join type, which you can use by specifying "join_type => 'straight'" in the relationship attributes It also provides a one-stop on-connect macro "set_strict_mode" which sets session variables such that MySQL behaves more predictably as far as the SQL standard is concerned. STORAGE OPTIONS
set_strict_mode Enables session-wide strict options upon connecting. Equivalent to: ->connect ( ... , { on_connect_do => [ q|SET SQL_MODE = CONCAT('ANSI,TRADITIONAL,ONLY_FULL_GROUP_BY,', @@sql_mode)|, q|SET SQL_AUTO_IS_NULL = 0|, ] }); AUTHORS
See "CONTRIBUTORS" in DBIx::Class LICENSE
You may distribute this code under the same terms as Perl itself. perl v5.16.2 2012-08-16 DBIx::Class::Storage::DBI::mysql(3)
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