MySQL分庫備份與分表備份 mysql
1、分庫備份 sql
要求:將mysql數據庫中的用戶數據庫備份,備份的數據庫文件以時間命名 數據庫
腳本內容以下: vim
[root@db01 scripts]# vim backup_database.sh bash
#!/bin/bash 測試
mysql_user=root spa
mysql_pass=123456 ip
mkdir -p /backup table
for n in `mysql -u$mysql_user -p$mysql_pass -e 'show databases;' 2>/dev/null|grep -Ev '_schema|mysql'|sed '1d'`; test
do
mysqldump -u$mysql_user -p$mysql_pass -B $n 2>/dev/null>/backup/${n}_`date +%Y_%m_%d`.sql
done
執行腳本進行測試:
[root@db01 scripts]# sh -x backup_database.sh
+ mysql_user=root
+ mysql_pass=123456
+ mkdir -p /backup
++ mysql -uroot -p123456 -e 'show databases;'
++ grep -Ev '_schema|mysql'
++ sed 1d
+ for n in '`mysql -u$mysql_user -p$mysql_pass -e '\''show databases;'\'' 2>/dev/null|grep -Ev '\''_schema|mysql'\''|sed '\''1d'\''`'
+ mysqldump -uroot -p123456 -B oldboy
+ for n in '`mysql -u$mysql_user -p$mysql_pass -e '\''show databases;'\'' 2>/dev/null|grep -Ev '\''_schema|mysql'\''|sed '\''1d'\''`'
+ mysqldump -uroot -p123456 -B oldgirl
+ for n in '`mysql -u$mysql_user -p$mysql_pass -e '\''show databases;'\'' 2>/dev/null|grep -Ev '\''_schema|mysql'\''|sed '\''1d'\''`'
+ mysqldump -uroot -p123456 -B test
[root@db01 scripts]#
檢查備份狀況:
[root@db01 scripts]# tree /backup/
/backup/
├── oldboy_2018_07_04.sql
├── oldgirl_2018_07_04.sql
└── test_2018_07_04.sql
0 directories, 3 files
[root@db01 scripts]#
2、分庫分表備份
要求:備份每一個數據庫的表,同一個庫中的表,放在對應數據庫名字命名的目錄下
腳本內容以下:
[root@db01 scripts]# vim backup_tables.sh
#!/bin/bash
mysql_user=root
mysql_pass=123456
mkdir -p /backup
for n in `mysql -u$mysql_user -p$mysql_pass -e 'show databases;' 2>/dev/null|grep -Ev '_schema|mysql'|sed '1d'`;
do
mkdir -p /backup/$n
for m in `mysql -u$mysql_user -p$mysql_pass $n -e "show tables;" 2>/dev/null|sed '1d'`;
do
mysqldump -u$mysql_user -p$mysql_pass $n $m 2>/dev/null>/backup/${n}/${m}_`date +%Y_%m_%d`.sql
done
done
執行腳本進行測試:
[root@db01 scripts]# sh -x backup_tables.sh
+ mysql_user=root
+ mysql_pass=123456
+ mkdir -p /backup
++ mysql -uroot -p123456 -e 'show databases;'
++ grep -Ev '_schema|mysql'
++ sed 1d
+ for n in '`mysql -u$mysql_user -p$mysql_pass -e '\''show databases;'\'' 2>/dev/null|grep -Ev '\''_schema|mysql'\''|sed '\''1d'\''`'
+ mkdir -p /backup/oldboy
++ sed 1d
++ mysql -uroot -p123456 oldboy -e 'show tables;'
+ for m in '`mysql -u$mysql_user -p$mysql_pass $n -e "show tables;" 2>/dev/null|sed '\''1d'\''`'
+ mysqldump -uroot -p123456 oldboy students
+ for m in '`mysql -u$mysql_user -p$mysql_pass $n -e "show tables;" 2>/dev/null|sed '\''1d'\''`'
+ mysqldump -uroot -p123456 oldboy test
+ for m in '`mysql -u$mysql_user -p$mysql_pass $n -e "show tables;" 2>/dev/null|sed '\''1d'\''`'
+ mysqldump -uroot -p123456 oldboy test2
+ for n in '`mysql -u$mysql_user -p$mysql_pass -e '\''show databases;'\'' 2>/dev/null|grep -Ev '\''_schema|mysql'\''|sed '\''1d'\''`'
+ mkdir -p /backup/oldgirl
++ mysql -uroot -p123456 oldgirl -e 'show tables;'
++ sed 1d
+ for m in '`mysql -u$mysql_user -p$mysql_pass $n -e "show tables;" 2>/dev/null|sed '\''1d'\''`'
+ mysqldump -uroot -p123456 oldgirl test3
+ for n in '`mysql -u$mysql_user -p$mysql_pass -e '\''show databases;'\'' 2>/dev/null|grep -Ev '\''_schema|mysql'\''|sed '\''1d'\''`'
+ mkdir -p /backup/test
++ mysql -uroot -p123456 test -e 'show tables;'
++ sed 1d
+ for m in '`mysql -u$mysql_user -p$mysql_pass $n -e "show tables;" 2>/dev/null|sed '\''1d'\''`'
+ mysqldump -uroot -p123456 test test4
[root@db01 scripts]#
檢查備份狀況:
[root@db01 scripts]# tree /backup/
/backup/
├── oldboy
│ ├── students_2018_07_04.sql
│ ├── test_2018_07_04.sql
│ └── test2_2018_07_04.sql
├── oldgirl
│ └── test3_2018_07_04.sql
└── test
└── test4_2018_07_04.sql
3 directories, 5 files
[root@db01 scripts]#