解决方法
在DBI-> connect中使用RaiseError => 1配置,并在try块中包含对$dbh和$sth的调用(
TryCatch和
Try::Tiny是try块的良好实现).
有关其他可用连接变量的更多信息,请参见the docs.
例如：
use strict;
use warnings;
use DBI;
use Try::Tiny;
my $dbh = DBI->connect(
$your_dsn_here,$user,$password,{
PrintError => 0,PrintWarn => 1,RaiseError => 1,AutoCommit => 1,}
);
try
{
# deliberate typo in query here
my $data = $dbh->selectall_arrayref('SOHW TABLES',{});
}
catch
{
warn "got dbi error: $_";
};