1、修改root使用者密碼

提示資訊：錯誤：登陸失敗,mysqladmin修改密碼失敗

[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)'

修復過程：

#停止服務

service mysqld stop

#安全模式啟動

mysqld_safe --skip-grant-tables &

#登入mysql，無需理會密碼提示

mysql -u root -p

use mysql;

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

flush privileges;

quit

#正常啟動mysql

service mysqld restart

1.新增使用者

#mysql -u root -p

mysql>CREATE USER test IDENTIFIED BY 'test';

2.新建庫

#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.解決遠端連線出錯

mysql -u root -p mysql

mysql>use mysql;

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

mysql>flush privileges;

4.新建表空間

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

5.設定表儲存路徑

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;

MySQL基本管理

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