目录
数据库备份,数据库为school,素材如下
1.创建student和score表
2.为student表和score表增加记录
3.备份数据库school到/backup目录
4.备份MySQL数据库为带删除表的格式,能够让该备份覆盖已有数据库而不需要手动删除原有数据库
5.直接将MySQL数据库压缩备份
6.备份MySQL数据库某个(些)表。此例备份student表
7.同时备份多个MySQL数据库(其他数据库素材自行准备)
8.仅仅备份数据库结构
9.备份服务器上所有数据库
10.还原MySQL数据库
11.还原压缩的MySQL数据库
12.使用xtrabackup 备份数据库
13.在另外的数据库服务器上还原xtrabackup 备份
14.使用mydumper备份数据库
15.使用mydumper恢复数据库
CREATE TABLE student (
id INT(10) NOT NULL UNIQUE PRIMARY KEY ,
name VARCHAR(20) NOT NULL ,
sex VARCHAR(4) ,
birth YEAR,
department VARCHAR(20) ,
address VARCHAR(50)
);
创建score表。SQL代码如下:
CREATE TABLE score (
id INT(10) NOT NULL UNIQUE PRIMARY KEY AUTO_INCREMENT ,
stu_id INT(10) NOT NULL ,
c_name VARCHAR(20) ,
grade INT(10)
);
INSERT INTO student VALUES( 901,'张老大', '男',1985,'计算机系', '北京市海淀区');
INSERT INTO student VALUES( 902,'张老二', '男',1986,'中文系', '北京市昌平区');
INSERT INTO student VALUES( 903,'张三', '女',1990,'中文系', '湖南省永州市');
INSERT INTO student VALUES( 904,'李四', '男',1990,'英语系', '辽宁省阜新市');
INSERT INTO student VALUES( 905,'王五', '女',1991,'英语系', '福建省厦门市');
INSERT INTO student VALUES( 906,'王六', '男',1988,'计算机系', '湖南省衡阳市');
INSERT INTO score VALUES(NULL,901, '计算机',98);
INSERT INTO score VALUES(NULL,901, '英语', 80);
INSERT INTO score VALUES(NULL,902, '计算机',65);
INSERT INTO score VALUES(NULL,902, '中文',88);
INSERT INTO score VALUES(NULL,903, '中文',95);
INSERT INTO score VALUES(NULL,904, '计算机',70);
INSERT INTO score VALUES(NULL,904, '英语',92);
INSERT INTO score VALUES(NULL,905, '英语',94);
INSERT INTO score VALUES(NULL,906, '计算机',90);
INSERT INTO score VALUES(NULL,906, '英语',85);
3.[root@localhost ~]# mysqldump -uroot -p123456 school > /backup/school.sql
4.[root@localhost ~]# mysqldump -uroot -p123456 --add-drop-table school > /backup/school2.sql
5.[root@localhost ~]# mysqldump -uroot -p123456 school | gzip > /backup/school.sql.gz
6.[root@localhost ~]# mysqldump -uroot -p123456 school student > /backup/school[student].sql
7.[root@localhost ~]# mysqldump -uroot -p123456 --databases school booksDB > /backup/school_booksDB.sql
8.[root@localhost ~]# mysqldump -uroot -p123456 -d school > /backup/school.jiegou.sql
9.[root@localhost ~]# mysqldump -uroot -p123456 -A > /backup/all.sql
10.[root@localhost ~]# mysql -uroot -p123456 < /backup/all.sql
11.[root@localhost ~]# gunzip < /backup/school.sql.gz | mysql -uroot -p123456 school
12.[root@localhost ~]# innobackupex --user=root --password=123456 /mysqlbackup2
[root@localhost ~]# ls /mysqlbackup2
2023-07-07_11-28-07
13.[root@localhost ~]# innobackupex --copy-back --rsync /mysqlbackup/2023-07-07_11-28-07/
14.[root@localhost ~]# mydumper -u root -p 123456 -B test1 -o /mysqlbackup
[root@localhost ~]# ls /mysqlbackup
metadata test1.Score-schema.sql
test1-schema-create.sql test1.Student-schema.sql
test1-schema-triggers.sql test1.test-schema.sql
15.[root@localhost ~]# mysql -uroot -p123456 -e 'drop database test1'
mysql: [Warning] Using a password on the command line interface can be insecure.
[root@localhost ~]# myloader -u root -p 123456 -d /mysqlbackup -o -B test1