MySQL 分区表脚本

#!/bin/bash

#按年分区，每年的12月份执行该脚本

table=tablexxx

mysql=/usr/local/mysql/bin/mysql

user=xxx

password=xxxx

str_0="alter TABLE $table add partition ("

str_1="PARTITION p"

str_2="VALUES LESS THAN (unix_timestamp('"

str_4=") ENGINE = InnoDB);"

str_3="')"

str_all=''

now_month=`date +%m`

i=1

#按年分区

while [ $i -lt 13 ]

do

    month=`date -d "-${i} month ago " +%Y%m`

    let j=i+1

    day=`date -d "-${j} month ago " +%Y-%m`"-01"

   str_line="${str_0}$str_1${month} $str_2${day}${str_3}$str_4\n"

   

#  echo $str_line

   str_all=$str_all${str_line}

   

   

   let i=i+1 

done

#echo -e  $str_all

mysql -u$user -p$password -e "use tmp;CREATE TABLE if not exists  tablexxx  (  id  int(11) NOT NULL AUTO_INCREMENT, ips  varchar(50) DEFAULT NULL COMMENT '访客IP', from_linkid  int(11) DEFAULT NULL COMMENT '链接的ID号', adddate  int(11) DEFAULT NULL COMMENT '访问时间', HTTP_REFERER  varchar(300) DEFAULT NULL COMMENT '来源', location_url  varchar(255) NOT NULL DEFAULT '' COMMENT '当前url',PRIMARY KEY ( id , adddate ),KEY  from_linkid  ( from_linkid ),KEY  idx_referer  ( HTTP_REFERER (255)),KEY  idx_adddate  ( adddate )) ENGINE=InnoDB DEFAULT CHARSET=utf8 COMMENT='网站联盟-来访IP记录'PARTITION BY RANGE (adddate)( PARTITION p201506 VALUES LESS THAN (unix_timestamp('2015-07-01')), PARTITION p201507 VALUES LESS THAN (unix_timestamp('2015-08-01')),  PARTITION p201508 VALUES LESS THAN (unix_timestamp('2015-09-01')));"

mysql -u$user -p$password -e "use tmp;$str_all"