1、修改root用户密码

提示信息：错误：登陆失败,mysqladmin修改密码失败

[root@mysql var]# mysqladmin -u root password 'roooot'
mysqladmin: connect to server at 'localhost' failed
error: 'Access denied for user 'root'@'localhost' (using password: NO)'

修复过程：

#停止服务

service mysqld stop

#安全模式启动

mysqld_safe --skip-grant-tables &

#登录mysql，无需理会密码提示

mysql -u root -p

use mysql;

update user set password=password("root") where user='root' and host='localhost';

flush privileges;

quit

#正常启动mysql

service mysqld restart

1.新增用户

#mysql -u root -p

mysql>CREATE USER test IDENTIFIED BY 'test';

2.新建库

#mysql -u root -p

create database test CHARACTER SET utf8 COLLATE utf8_general_ci;

create database test_gbk CHARACTER SET gbk COLLATE gbk_chinese_ci;

create database target CHARACTER SET utf8 COLLATE utf8_general_ci;

create database target_gbk CHARACTER SET gbk COLLATE gbk_chinese_ci;

create database benchmark CHARACTER SET gbk COLLATE gbk_chinese_ci;
create database source CHARACTER SET gbk COLLATE gbk_chinese_ci;
create database unittest CHARACTER SET gbk COLLATE gbk_chinese_ci;

mysql>grant all privileges on test.* to test@'%' identified by 'test';

mysql>flush privileges;

3.解决远程连接出错

mysql -u root -p mysql

mysql>use mysql;

mysql>update user set host='% 'where user='root';

mysql>flush privileges;

4.新建表空间

CREATE TABLESPACE 'tbs_data' ADD DATAFILE 'tbs_data.ibd' ENGINE=INNODB;

5.设置表存储路径

CREATE TABLE `D_TF_DATA_AGGREGATION_MYISAM` (

`strative_id` VARCHAR(16) NOT NULL,

`date_id` VARCHAR(8) NOT NULL,

`qua_id` VARCHAR(4) NOT NULL,

`fh` DECIMAL(16,6) DEFAULT NULL,

`dl` DECIMAL(16,6) DEFAULT NULL,

PRIMARY KEY (`strative_id`,`date_id`,`qua_id`)

) ENGINE=MYISAM DATA DIRECTORY = '/data/mysql' INDEX DIRECTORY= '/data/mysql';

CREATE TABLE `D_TF_DATA_AGGREGATION` (

`strative_id` VARCHAR(16) NOT NULL,

`date_id` VARCHAR(8) NOT NULL,

`qua_id` VARCHAR(4) NOT NULL,

`fh` DECIMAL(16,6) DEFAULT NULL,

`dl` DECIMAL(16,6) DEFAULT NULL,

PRIMARY KEY (`strative_id`,`date_id`,`qua_id`)

) ENGINE=INNODB DATA DIRECTORY = '/data/mysql'

show warnings;

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