I use DBIx to retrieve some varchar(max) column, but the program is dead, not executed when retrieve only one row. The following is the output:
c:\temp\perl\DBIx\hengaini>perl ecis_odbc.pl
MyApp::Schema=HASH(0x33c928)
select * from T_SEARCH where %s
my script as follows:
#!/usr/bin/perl
use v5.14.2;
use strict;
use warnings;
use utf8;
use MyApp::Schema;
use open ":encoding(gbk)", ":std";
my $schema = MyApp::Schema->connect('dbi:ODBC:DSN=ecis_yl','sa','73545
+00',
{odbc_trace_file => 'c:\temp\odbc.trc',
odbc_trace => 1}
);
say $schema;
my $rs = $schema->resultset('Search');
while (my $search = $rs->next) {
say $search->mysql;
}
I use DBIx, and result 'Search' file Search.pm as follows:
package MyApp::Schema::Result::Search;
use base qw/DBIx::Class::Core/;
__PACKAGE__->table('dbo.t_search');
__PACKAGE__->add_columns(qw/ searchid searchname title mysql /);
__PACKAGE__->set_primary_key('searchid');
1;
The table "T_search" in SQL Server 2008 defination as follows :
CREATE TABLE [dbo].[T_Search](
[searchId] [varchar](10) NOT NULL,
[searchName] [varchar](50) NOT NULL,
[mysql] [varchar](max) NOT NULL,
[formName] [varchar](30) NULL,
[formAction] [varchar](30) NULL,
[mykey] [varchar](30) NULL,
[title] [varchar](120) NULL,
[orderBy] [varchar](64) NULL,
[groupBy] [varchar](30) NULL,
[pageSize] [smallint] NOT NULL,
[entityName] [varchar](30) NULL,
[ds] [varchar](12) NULL,
[remark] [varchar](80) NULL,
CONSTRAINT [PK_T_SearchValue22] PRIMARY KEY NONCLUSTERED
(
[searchId] ASC
)WITH (PAD_INDEX = OFF, STATISTICS_NORECOMPUTE = OFF, IGNORE_DUP_KEY
+ = OFF, ALLOW_ROW_LOCKS = ON, ALLOW_PAGE_LOCKS = ON) ON [PRIMARY]
) ON [PRIMARY] TEXTIMAGE_ON [PRIMARY]
GO
select max(len(mysql)) from T_Search --10516
My questions are:
1. how to debug this question?
2. What's wrong?
Thanks!
