停库，备份

# which mysqladmin

# mysqladmin -uroot -pOracle123 shutdown

# ps -ef|grep mysql

进入数据文件所在位置进行物理cp或者scp

它的备份过程是先从buffer中找到需要备份的数据进行备份，不然就将数据文件中缓存到buff中进行备份

全库备份

# mysqldump --single-transaction -uroot -pOracle123 -A > all_20200310.sql

全库恢复

# mysql -uroot -pOracle123 < all_20200310.sql

单库备份TEST

# mysqldump --single-transaction -uroot -pOracle123 TEST > TEST_20200310.sql

单库恢复

# mysql -uroot -pOracle123 TEST < TEST_20200310.sql

注：数据库TEST如果被删除了，需要先创建空库TEST

备份单表TEST.TEST

# mysqldump --single-transaction -uroot -pOracle123 TEST TEST > TEST.TEST_20200310.sql

单表还原

# mysql -uroot -pOracle123 TEST < TEST_20200310.sql

备份表结构TEST

# mysqldump --single-transaction -uroot -pOracle123 TEST TEST -d >TEST_META_20200310.sql

备份表内容TEST

# mysqldump --single-transaction -uroot -pOracle123 TEST TEST -t >TEST_DATA_20200310.sql

按要求备份TEST

# mysqldump --single-transaction -uroot -pOracle123 TEST TEST --where="id>3" >TEST_WHERE_20200310.sql

注：先确保secure_file_priv参数不为NULL，否则设置 secure-file-priv=""

mysql> select * from TEST into outfile '/tmp/test.sql';

mysql> delete from TEST;

mysql> commit;

mysql> load data infile '/tmp/test.sql' into table TEST;

mysql> COMMIT;

或者

# mysql -uroot -pOracle123 -e "load data infile '/tmp/test.sql' into table TEST.TEST"

下载地址

http://rpm.pbone.net/index.php3/stat/4/idpl/55203713/dir/redhat_el_7/com/mydumper-0.9.1-4.1.x86_64.rpm.html

# yum install glib2-devel mysql-devel zlib-devel pcre-devel openssl-devel cmake make

# cd /u01

# yum install -y mydumper-0.9.1-4.1.x86_64.rpm

# ln -s /tmp/mysql.sock /var/lib/mysql/mysql.sock

备份TEST数据库

# mydumper -u root -p Oracle123 -B TEST -o /u01/bak

还原TEST数据库

mysql> drop database TEST;

# myloader -u root -p Oracle -B TEST -d /u01/bak/

备份TEST表

# mydumper -u root -p Oracle123 -B TEST -T TEST -o /u01/bak/

还原TEST表

# myloader -u root -p Oracle123 -B TEST -o TEST -d /u01/bak/