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  • perl 批量生成分区表

    mysql> show create table ClientActionTrackG;
    *************************** 1. row ***************************
           Table: ClientActionTrack
    Create Table: CREATE TABLE `ClientActionTrack` (
      `sn` bigint(20) NOT NULL AUTO_INCREMENT,
      `clientSn` int(11) DEFAULT NULL,
      `ip` varchar(32) DEFAULT NULL,
      `url` varchar(1000) DEFAULT NULL COMMENT 'request url',
      `httpMethod` varchar(100) DEFAULT NULL COMMENT 'http method',
      `requestParams` text COMMENT '请求参数',
      `requestHeader` varchar(2000) DEFAULT NULL COMMENT '请求头信息',
      `pageUrl` varchar(500) DEFAULT NULL COMMENT '页面Url',
      `sessionId` varchar(100) DEFAULT NULL COMMENT 'session的Id',
      `startTime` datetime NOT NULL DEFAULT '0000-00-00 00:00:00' COMMENT '访问开始时间',
      `completeTime` datetime DEFAULT NULL COMMENT '访问完成时间',
      PRIMARY KEY (`sn`,`startTime`)
    ) ENGINE=InnoDB AUTO_INCREMENT=10251622 DEFAULT CHARSET=utf8 COMMENT='用户访问记录表'
    /*!50100 PARTITION BY RANGE (TO_DAYS(startTime))
    (PARTITION p20151124 VALUES LESS THAN (736292) ENGINE = InnoDB,
     PARTITION p20151125 VALUES LESS THAN (736293) ENGINE = InnoDB,
     PARTITION p20151126 VALUES LESS THAN (736294) ENGINE = InnoDB,
     PARTITION p20151127 VALUES LESS THAN (736295) ENGINE = InnoDB,
     PARTITION p20161221 VALUES LESS THAN (736685) ENGINE = InnoDB,
     PARTITION p20161222 VALUES LESS THAN (736686) ENGINE = InnoDB,
     PARTITION p20161223 VALUES LESS THAN (736687) ENGINE = InnoDB,
     PARTITION p20161224 VALUES LESS THAN (736688) ENGINE = InnoDB,
     PARTITION p20161225 VALUES LESS THAN (736689) ENGINE = InnoDB,
     PARTITION p20161226 VALUES LESS THAN (736690) ENGINE = InnoDB,
     PARTITION p20161227 VALUES LESS THAN (736691) ENGINE = InnoDB,
     PARTITION p20161228 VALUES LESS THAN (736692) ENGINE = InnoDB,
     PARTITION p20161229 VALUES LESS THAN (736693) ENGINE = InnoDB,
     PARTITION p20161230 VALUES LESS THAN (736694) ENGINE = InnoDB,
     PARTITION p20161231 VALUES LESS THAN (736695) ENGINE = InnoDB,
     PARTITION pmax VALUES LESS THAN MAXVALUE ENGINE = InnoDB) */
    1 row in set (0.21 sec)
    
    ERROR: 
    No query specified
    
    
     PARTITION p20161226 VALUES LESS THAN (736690) ENGINE = InnoDB,
     
     mysql> select TO_DAYS('2016-12-26 23:59:59') from  Client limit 1; 
    +--------------------------------+
    | TO_DAYS('2016-12-26 23:59:59') |
    +--------------------------------+
    |                         736689 |
    +--------------------------------+
    1 row in set (0.08 sec)
    
    
    mysql> select TO_DAYS('2016-12-27 00:00:00') from  Client limit 1;
    +--------------------------------+
    | TO_DAYS('2016-12-27 00:00:00') |
    +--------------------------------+
    |                         736690 |
    +--------------------------------+
    1 row in set (0.00 sec)
    
     mysql> select startTime from ClientActionTrack limit 10;
    +---------------------+
    | startTime           |
    +---------------------+
    | 2016-06-16 18:43:53 |
    | 2016-06-16 18:43:53 |
    | 2016-06-16 18:43:53 |
    | 2016-06-16 18:43:53 |
    | 2016-06-16 18:43:53 |
    | 2016-06-16 18:43:53 |
    | 2016-06-16 18:43:53 |
    | 2016-06-16 18:43:53 |
    | 2016-06-16 18:43:53 |
    | 2016-06-16 18:43:53 |
    +---------------------+
    10 rows in set (0.02 sec)
    
    
    mysql> select TO_DAYS('2016-12-27 00:00:00') from  Client limit 1;
    +--------------------------------+
    | TO_DAYS('2016-12-27 00:00:00') |
    +--------------------------------+
    |                         736690 |
    +--------------------------------+
    1 row in set (0.00 sec)
    
    mysql> select TO_DAYS('2016-12-27') from  Client limit 1;
    +-----------------------+
    | TO_DAYS('2016-12-27') |
    +-----------------------+
    |                736690 |
    +-----------------------+
    1 row in set (0.00 sec)
    
    
    
    zabbix:/root/sbin# perl t2.pl  20160101 20161231 ^C
    zabbix:/root/sbin# cat t2.pl 
    use DBI;
    use HTTP::Date qw(time2iso str2time time2iso time2isoz);
    my $ip="127.0.0.1";
    my $user="root";
    my $passwd="1234567";
    my $dbh = DBI->connect("dbi:mysql:database=$message;host=$ip;port=3306",$user,$passwd) or die "can't connect to database ". DBI-errstr;
    ##防止utf-8中文乱码
    $dbh->do("SET NAMES utf8");
    my $date1= "$ARGV[0]";
    my $date2="$ARGV[1]";
    my $date=$date1;
    my $tip='+1';
     sub get_date{ 
           my $var_date=$_[0]; 
           my $hostSql = qq{  SELECT DATE_FORMAT( DATE_ADD( '$var_date', INTERVAL $tip  DAY), '%Y%m%d') AS xxx FROM information_schema.tables a limit 1;};
           my ($a1, $a2, $a3,$a4,$a5,$a6,$a7,$a8,$a9);    
           my $selStmt = $dbh->prepare($hostSql);    
           $selStmt->execute();    
           while (@recs=$selStmt->fetchrow_array) {
           foreach (@recs)
           {$date=$_;return $date}
    };
    };
    
     sub trans_date {
          my $var_date=shift;
          $selStmt=$dbh->prepare("select to_days('$var_date');");
         $selStmt->execute;
         while (@recs=$selStmt->fetchrow_array) {
         foreach (@recs)
           {$date=$_;return $date}
            }  
     };
        while (1==1){
        $date3=$date;
        
        $date4=&get_date($date3);
        $var=&trans_date($date4);
        print "alter table ClientActionTrack add partition (partition p$date3 values less than ($var));
    ";
        $date=&get_date($date3);
        if ( "$date" == "$date2" ){$var=$var+1;print "alter table ClientActionTrack add partition (partition p$date values less than ($var))
    ";$date="$date1";last;}
       };
    zabbix:/root/sbin# perl t2.pl  20160101 20161231 
    alter table ClientActionTrack add partition (partition p20160101 values less than (736330));
    alter table ClientActionTrack add partition (partition p20160102 values less than (736331));
    alter table ClientActionTrack add partition (partition p20160103 values less than (736332));
    alter table ClientActionTrack add partition (partition p20160104 values less than (736333));
    alter table ClientActionTrack add partition (partition p20160105 values less than (736334));
    alter table ClientActionTrack add partition (partition p20160106 values less than (736335));

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  • 原文地址:https://www.cnblogs.com/hzcya1995/p/13349945.html
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