mysql备份和恢复

mysql备份恢复

mysqldump

备份：

database：mysqldump -uroot -p database > /tmp/database.sql

table：mysqldump -uroot -p database table1> /tmp/table1.sql

还原：

mysql -uroot -p </tmp/database.sql

或者进入命令行：source /tmp/database.sql

另外如果只是指定格式备份数据到文件，以下方式（http://dev.mysql.com/doc/refman/5.7/en/select-into.html）

导出数据文件：
mysql> SELECT * INTO OUTFILE '/tmp/result.txt'  

FIELDS TERMINATED BY ',' OPTIONALLY ENCLOSED BY '"'  

LINES TERMINATED BY '\n'   FROM test.t1;

Query OK, 1 row affected (0.00 sec)

[root@localhost data]# cat /tmp/result.txt

1,"china","HongKong"

倒入数据文件：

mysql> delete from test.t1;                                                                                     Query OK, 1 row affected (0.12 sec)

mysql> select * from test.t1;

Empty set (0.01 sec)

导入：
mysql> LOAD DATA INFILE '/tmp/result.txt' INTO TABLE test.t1 

FIELDS TERMINATED BY ',' OPTIONALLY ENCLOSED BY '"'

LINES TERMINATED BY '\n' ;

Query OK, 1 row affected (0.10 sec)

Records: 1  Deleted: 0  Skipped: 0  Warnings: 0

查看：

mysql> select * from test.t1;

+----+-------+----------+

| id | fname | lname    |

+----+-------+----------+

|  1 | china | HongKong |

+----+-------+----------+

1 row in set (0.00 sec)

忽略或者替换已存在：

mysql> LOAD DATA INFILE '/tmp/result.txt' IGNORE|REPLACE INTO TABLE test.t1  FIELDS TERMINATED BY ',' OPTIONALLY ENCLOSED BY '"' LINES TERMINATED BY '\n' ;

跳过前几条记录：

mysql> LOAD DATA INFILE '/tmp/result.txt'  INTO TABLE test.t1  FIELDS TERMINATED BY ',' OPTIONALLY ENCLOSED BY '"' LINES TERMINATED BY '\n' IGNORE 1 LINES;

Query OK, 1 row affected (0.12 sec)

Records: 1  Deleted: 0  Skipped: 0  Warnings: 0

mysql> select * from test.t1;

+----+-------+----------+

| id | fname | lname    |

+----+-------+----------+

|  1 | china | HongKong |

|  2 | china | HongKong |

+----+-------+----------+

2 rows in set (0.00 sec)