输入查看当前库中表的字段位数： mediumint(6)
[root@db-master ~]# sh alter_table.sh
alter table user_campaign_0 modify current_stage mediumint(6) unsigned not null default 0 comment '当前关卡';
0 finished.
alter table user_campaign_1 modify current_stage mediumint(6) unsigned not null default 0 comment '当前关卡';
1 finished.
alter table user_campaign_2 modify current_stage mediumint(6) unsigned not null default 0 comment '当前关卡';
2 finished.
alter table user_campaign_3 modify current_stage mediumint(6) unsigned not null default 0 comment '当前关卡';
3 finished.
alter table user_campaign_4 modify current_stage mediumint(6) unsigned not null default 0 comment '当前关卡';
4 finished.
alter table user_campaign_5 modify current_stage mediumint(6) unsigned not null default 0 comment '当前关卡';
5 finished.
alter table user_campaign_6 modify current_stage mediumint(6) unsigned not null default 0 comment '当前关卡';
6 finished.
alter table user_campaign_7 modify current_stage mediumint(6) unsigned not null default 0 comment '当前关卡';
7 finished.
alter table user_campaign_8 modify current_stage mediumint(6) unsigned not null default 0 comment '当前关卡';
8 finished.
alter table user_campaign_9 modify current_stage mediumint(6) unsigned not null default 0 comment '当前关卡';
9 finished.
alter table user_campaign_10 modify current_stage mediumint(6) unsigned not null default 0 comment '当前关卡';
10 finished.
alter table user_campaign_11 modify current_stage mediumint(6) unsigned not null default 0 comment '当前关卡';
11 finished.
alter table user_campaign_12 modify current_stage mediumint(6) unsigned not null default 0 comment '当前关卡';
12 finished.
alter table user_campaign_13 modify current_stage mediumint(6) unsigned not null default 0 comment '当前关卡';
13 finished.
alter table user_campaign_14 modify current_stage mediumint(6) unsigned not null default 0 comment '当前关卡';
14 finished.
alter table user_campaign_15 modify current_stage mediumint(6) unsigned not null default 0 comment '当前关卡';
15 finished.
alter table user_campaign_16 modify current_stage mediumint(6) unsigned not null default 0 comment '当前关卡';
16 finished.
alter table user_campaign_17 modify current_stage mediumint(6) unsigned not null default 0 comment '当前关卡';
17 finished.
alter table user_campaign_18 modify current_stage mediumint(6) unsigned not null default 0 comment '当前关卡';
18 finished.
alter table user_campaign_19 modify current_stage mediumint(6) unsigned not null default 0 comment '当前关卡';
19 finished.
alter table user_campaign_20 modify current_stage mediumint(6) unsigned not null default 0 comment '当前关卡';
20 finished.
alter table user_campaign_21 modify current_stage mediumint(6) unsigned not null default 0 comment '当前关卡';
21 finished.
alter table user_campaign_22 modify current_stage mediumint(6) unsigned not null default 0 comment '当前关卡';
22 finished.
alter table user_campaign_23 modify current_stage mediumint(6) unsigned not null default 0 comment '当前关卡';
23 finished.
alter table user_campaign_24 modify current_stage mediumint(6) unsigned not null default 0 comment '当前关卡';
24 finished.
alter table user_campaign_25 modify current_stage mediumint(6) unsigned not null default 0 comment '当前关卡';
25 finished.
alter table user_campaign_26 modify current_stage mediumint(6) unsigned not null default 0 comment '当前关卡';
26 finished.
alter table user_campaign_27 modify current_stage mediumint(6) unsigned not null default 0 comment '当前关卡';
27 finished.
alter table user_campaign_28 modify current_stage mediumint(6) unsigned not null default 0 comment '当前关卡';
28 finished.
alter table user_campaign_29 modify current_stage mediumint(6) unsigned not null default 0 comment '当前关卡';
29 finished.
alter table user_campaign_30 modify current_stage mediumint(6) unsigned not null default 0 comment '当前关卡';
30 finished.