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  • 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
    ";
    $dbh->do("$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
    ";
    $dbh->do("$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.

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  • 原文地址:https://www.cnblogs.com/zhaoyangjian724/p/6199948.html
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