eval 捕获错误

eval 捕获错误:

[root@dr-mysql01 ~]# cat t1.pl

use DBI;

my $dbUser='zabbix';

my $user="root";

my $passwd="1234567";

my $dbh  = DBI->connect("dbi:mysql:database=zabbix;host=192.168.32.55;port=3306",$user,$passwd) or die "can't connect to database ". DBI-errstr;

eval {

#alter table trends drop partition p20160425;

my $sql="alter table history  drop partition p20160501;";

print "\$sql is $sql\n";

$dbh->do("$sql");

    };

      print $@;

[root@dr-mysql01 ~]# perl t1.pl

$sql is alter table history  drop partition p20160501;

[root@dr-mysql01 ~]# cat t1.pl

use DBI;

my $dbUser='zabbix';

my $user="root";

my $passwd="1234567";

my $dbh  = DBI->connect("dbi:mysql:database=zabbix;host=192.168.32.55;port=3306",$user,$passwd) or die "can't connect to database ". DBI-errstr;

eval {

#alter table trends drop partition p20160425;

my $sql="alter table history  drop partition p20160401;";

print "\$sql is $sql\n";

$dbh->do("$sql");

    };

      print $@;

[root@dr-mysql01 ~]# perl t1.pl

$sql is alter table history  drop partition p20160401;

DBD::mysql::db do failed: Error in list of partitions to DROP at t1.pl line 10.