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引言
MariaDB 是一款灰常不错开源数据库. 这里直接用它来解决业务问题.
业务需求：
现在数据库中表示按照天分表的. 突然我们需要按照月来处理数据.
例如输入一个玩家id, 查找这个玩家这个月内看了一件事几次. 我们先搭建一个环境.
操作系统：
Linux version 4.4.0-22-generic (buildd@lgw01-41) (gcc version 5.3.1 20160413 (Ubuntu 5.3.1-14ubuntu2) ) #40-Ubuntu SMP Thu May 12 22:03:46 UTC 2016</div>
首先安装 MariaDB数据库
sudo apt-get install mariadb-server sudo apt-get install mariadb-client sudo apt-get install libmariadb2 sudo apt-get install libmariadb-client-lgpl-dev sudo apt-get install libreoffice-mysql-connector</div>
后面是C访问 MariaDB驱动. 这里扯一点, 目前关于MariaDB不懂问题, 搜不见直接当成mysql开始搜.
MariaDB安装成功后默认是开启的, 看下面图描述
后面搭建测试环境 首先 看 oss_musicelves.sql
-- MySQL dump 10.10 -- -- Host: localhost Database: oss_log -- ------------------------------------------------------ -- Server version 5.5.24-tmysql-1.4 /*!40101 SET @OLD_CHARACTER_SET_CLIENT=@@CHARACTER_SET_CLIENT */; /*!40101 SET @OLD_CHARACTER_SET_RESULTS=@@CHARACTER_SET_RESULTS */; /*!40101 SET @OLD_COLLATION_CONNECTION=@@COLLATION_CONNECTION */; /*!40101 SET NAMES utf8 */; /*!40103 SET @OLD_TIME_ZONE=@@TIME_ZONE */; /*!40103 SET TIME_ZONE='+00:00' */; /*!40014 SET @OLD_UNIQUE_CHECKS=@@UNIQUE_CHECKS, UNIQUE_CHECKS=0 */; /*!40014 SET @OLD_FOREIGN_KEY_CHECKS=@@FOREIGN_KEY_CHECKS, FOREIGN_KEY_CHECKS=0 */; /*!40101 SET @OLD_SQL_MODE=@@SQL_MODE, SQL_MODE='NO_AUTO_VALUE_ON_ZERO' */; /*!40111 SET @OLD_SQL_NOTES=@@SQL_NOTES, SQL_NOTES=0 */; -- -- Table structure for table `oss_musicelves` -- DROP TABLE IF EXISTS `oss_musicelves`; CREATE TABLE `oss_musicelves` ( `record_id` bigint(20) NOT NULL AUTO_INCREMENT, `account_id` bigint(20) NOT NULL, `server_id` int(11) NOT NULL, `char_id` bigint(20) NOT NULL, `char_sex` int(11) NOT NULL, `type_id` int(11) NOT NULL, `timeStamp` datetime NOT NULL DEFAULT '0000-00-00 00:00:00', `ptype` int(11) NOT NULL, `specifytype` int(11) NOT NULL, `childtype` int(11) NOT NULL, PRIMARY KEY (`record_id`), KEY `idx_specifytype` (`specifytype`) ) ENGINE=InnoDB AUTO_INCREMENT=32 DEFAULT CHARSET=latin1; -- -- Dumping data for table `oss_musicelves` -- /*!40000 ALTER TABLE `oss_musicelves` DISABLE KEYS */; LOCK TABLES `oss_musicelves` WRITE; INSERT INTO `oss_musicelves` VALUES (1,411948833,84869352,27899597414400801,0,1812,'2016-05-31 14:27:41',0,1,1),(2,1344702709,90964200,30422720614402293,0,1812,'2016-05-31 14:58:26',0,1,1),(3,706409913,90964200,30422720614401465,1,1812,'2016-05-31 14:58:27',0,1,2),(4,706409913,392964857,30422720614401465,1,1812,'2016-05-31 14:58:59',0,2,4),(5,1344702709,392964857,30422720614402293,0,1812,'2016-05-31 14:58:59',0,2,4),(6,706409913,90964200,30422720614401465,1,1812,'2016-05-31 15:04:52',0,1,2),(7,706409913,392964857,30422720614401465,1,1812,'2016-05-31 15:05:54',0,2,4),(8,1344702709,392964857,30422720614402293,0,1812,'2016-05-31 15:05:54',0,2,4),(9,1344702709,90964200,30422720614402293,0,1812,'2016-05-31 15:10:29',0,1,1),(10,706409913,90964200,30422720614401465,1,1812,'2016-05-31 15:10:32',0,1,2),(11,1344702709,392964857,30422720614402293,0,1812,'2016-05-31 15:10:54',0,2,4),(12,3145910262,90964200,29520779366416374,1,1812,'2016-05-31 15:30:00',0,1,1),(13,1372825842,90964200,30173879500803314,1,1812,'2016-05-31 15:30:01',0,1,2),(14,3145910262,392964857,29520779366416374,1,1812,'2016-05-31 15:30:04',0,2,4),(15,1372825842,392964857,30173879500803314,1,1812,'2016-05-31 15:30:04',0,2,4),(16,3145910262,392964857,29520779366416374,1,1812,'2016-05-31 15:34:24',0,2,4),(17,1372825842,392964857,30173879500803314,1,1812,'2016-05-31 15:34:24',0,2,4),(18,706409913,90964200,30422720614401465,1,1812,'2016-05-31 15:40:14',0,1,1),(19,1344702709,90964200,30422720614402293,0,1812,'2016-05-31 15:40:16',0,1,2),(20,3145910262,392964857,29520779366416374,1,1812,'2016-05-31 15:42:19',0,2,4),(21,1372825842,392964857,30173879500803314,1,1812,'2016-05-31 15:42:19',0,2,4),(22,1027763684,90964200,30175730790400484,0,1812,'2016-05-31 16:56:33',1,1,1),(23,1372825842,90964200,30173879500803314,1,1812,'2016-05-31 16:56:50',0,1,2),(24,1372825842,392964857,30173879500803314,1,1812,'2016-05-31 16:57:37',0,2,3),(25,1027763684,392964857,30175730790400484,0,1812,'2016-05-31 16:57:37',1,2,3),(26,1372825842,392964857,30173879500803314,1,1812,'2016-05-31 17:04:33',0,2,3),(27,1027763684,392964857,30175730790400484,0,1812,'2016-05-31 17:04:33',1,2,3),(28,1027763684,90964200,30175730790400484,0,1812,'2016-05-31 17:14:15',1,1,2),(29,1372825842,392964857,30173879500803314,1,1812,'2016-05-31 17:14:50',0,2,3),(30,1027763684,392964857,30175730790400484,0,1812,'2016-05-31 17:14:50',1,2,3),(31,751699770,90964200,30175199027201850,1,1812,'2016-05-31 18:14:59',1,1,1); UNLOCK TABLES; /*!40000 ALTER TABLE `oss_musicelves` ENABLE KEYS */; /*!40103 SET TIME_ZONE=@OLD_TIME_ZONE */; /*!40101 SET SQL_MODE=@OLD_SQL_MODE */; /*!40014 SET FOREIGN_KEY_CHECKS=@OLD_FOREIGN_KEY_CHECKS */; /*!40014 SET UNIQUE_CHECKS=@OLD_UNIQUE_CHECKS */; /*!40101 SET CHARACTER_SET_CLIENT=@OLD_CHARACTER_SET_CLIENT */; /*!40101 SET CHARACTER_SET_RESULTS=@OLD_CHARACTER_SET_RESULTS */; /*!40101 SET COLLATION_CONNECTION=@OLD_COLLATION_CONNECTION */; /*!40111 SET SQL_NOTES=@OLD_SQL_NOTES */;</div>
这个 oss_musicelves.sql 文件主要功能是创建 oss_musicelves数据库, 并填充数据.
还有一个 搭建环境 的 脚本 mariadb_test.sql 和上一个sql文件放在同一个目录下
# 创建一个测试数据库 create database oss_log; # 进入oss_log 数据库 use oss_log; # 创建 oss_musicelves 数据库, 并导入数据 source oss_musicelves.sql; # 批量创建表和数据 create table 2016_6_1_oss_musicelves select * from oss_musicelves; create table 2016_6_2_oss_musicelves select * from oss_musicelves; create table 2016_6_3_oss_musicelves select * from oss_musicelves; create table 2016_6_4_oss_musicelves select * from oss_musicelves; create table 2016_6_5_oss_musicelves select * from oss_musicelves; create table 2016_6_9_oss_musicelves select * from oss_musicelves; create table 2016_6_10_oss_musicelves select * from oss_musicelves; create table 2016_6_12_oss_musicelves select * from oss_musicelves; # 查询表是否创建成功 show tables; # 这里处理 拿到的数据 select distinct table_name from information_schema.columns where table_name like '2016_6_%_oss_musicelves';</div>
直接放在 MariaDB控制台中直接刷进去. 搭建的具体环境如下
到这里环境基本搭建好了. MariaDB入门等等, 完全可以当做mysql 学习温故一遍.
前言
上面问题就是 原本 是 select * from oss_musicelves; 就可以解决的问题.
这里 需要 输入年和月 外加一些特殊条件 . select * from %_%_%_oss_musicelves; 解决. 单纯用sql脚本也可以解决.非常复杂.用的不熟.
这里首先通过 shell 脚本处理
touch getmouths.sh chmod +x getmouths.sh vi getmouths.sh</div>
具体的脚本 内容 如下
#!/bin/sh #得到输入的玩家ptid if [ $# -lt 1 ] then echo "uage: $0 [ptid]" exit -1 fi ptid=$1 mouth=$(date +%m | sed s'/^0//') #第一个参