使用 MYSQLBINLOG 來恢復數據

       BINLOG就是一個記錄SQL語句的過程，和普通的LOG同樣。不過只是她是二進制存儲，普通的是十進制存儲罷了。
一、配置文件裏要寫的東西：
[mysqld]
log-bin= mysql-bin(名字能夠改爲本身的，若是不更名字的話，默認是以主機名字命名)
從新啓動MSYQL服務。
二進制文件裏面的東西顯示的就是執行全部語句的詳細記錄，固然一些語句不被記錄在內，要了解詳細的，見手冊頁。

二、查看本身的BINLOG的名字是什麼。
show binlog events;

query result(1 records)

Log_name	Pos	Event_type	Server_id	End_log_pos	Info
yueliangdao_binglog.000001	4	Format_desc	1	106	Server ver: 5.1.22-rc-community-log, Binlog ver: 4

三、我作了幾回操做後，她就記錄了下來。
又一次 show binlog events 的結果。

query result(4 records)

Log_name	Pos	Event_type	Server_id	End_log_pos	Info
yueliangdao_binglog.000001	4	Format_desc	1	106	Server ver: 5.1.22-rc-community-log, Binlog ver: 4
yueliangdao_binglog.000001	106	Intvar	1	134	INSERT_ID=1
yueliangdao_binglog.000001	134	Query	1	254	use `test`; create table a1(id int not null auto_increment primary key, str varchar(1000)) engine=myisam
yueliangdao_binglog.000001	254	Query	1	330	use `test`; insert into a1(str) values ('I love you'),('You love me')
yueliangdao_binglog.000001	330	Query	1	485	use `test`; drop table a1

四、用mysqlbinlog 工具來顯示記錄的二進制結果，而後導入到文本文件，爲了之後的恢復。
詳細過程以下：
D:\LAMP\MYSQL5\data>mysqlbinlog --start-position=4 --stop-position=106 yueliangd
ao_binglog.000001 > c:\\test1.txt
test1.txt的文件內容：

/*!40019 SET @@session.max_insert_delayed_threads=0*/;
/*!50003 SET @OLD_COMPLETION_TYPE=@@COMPLETION_TYPE,COMPLETION_TYPE=0*/;
DELIMITER /*!*/;
# at 4
#7122 16:9:18 server id 1 end_log_pos 106     Start: binlog v 4, server v 5.1.22-rc-community-log created 7122 16:9:18 at startup
# Warning: this binlog was not closed properly. Most probably mysqld crashed writing it.
ROLLBACK/*!*/;
DELIMITER ;
# End of log file
ROLLBACK /* added by mysqlbinlog */;
/*!50003 SET COMPLETION_TYPE=@OLD_COMPLETION_TYPE*/;
第二行的記錄：
D:\LAMP\MYSQL5\data>mysqlbinlog --start-position=106 --stop-position=134 yuelian
gdao_binglog.000001 > c:\\test1.txt
test1.txt內容以下：

/*!40019 SET @@session.max_insert_delayed_threads=0*/;
/*!50003 SET @OLD_COMPLETION_TYPE=@@COMPLETION_TYPE,COMPLETION_TYPE=0*/;
DELIMITER /*!*/;
# at 106
#7122 16:22:36 server id 1 end_log_pos 134     Intvar
SET INSERT_ID=1/*!*/;
DELIMITER ;
# End of log file
ROLLBACK /* added by mysqlbinlog */;
/*!50003 SET COMPLETION_TYPE=@OLD_COMPLETION_TYPE*/;

第三行記錄：
D:\LAMP\MYSQL5\data>mysqlbinlog --start-position=134 --stop-position=254 yuelian
gdao_binglog.000001 > c:\\test1.txt
內容：
/*!40019 SET @@session.max_insert_delayed_threads=0*/;
/*!50003 SET @OLD_COMPLETION_TYPE=@@COMPLETION_TYPE,COMPLETION_TYPE=0*/;
DELIMITER /*!*/;
# at 134
#7122 16:55:31 server id 1 end_log_pos 254     Query    thread_id=1    exec_time=0    error_code=0
use test/*!*/;
SET TIMESTAMP=1196585731/*!*/;
SET @@session.foreign_key_checks=1, @@session.sql_auto_is_null=1, @@session.unique_checks=1/*!*/;
SET @@session.sql_mode=1344274432/*!*/;
/*!\C utf8 *//*!*/;
SET @@session.character_set_client=33,@@session.collation_connection=33,@@session.collation_server=33/*!*/;
create table a1(id int not null auto_increment primary key,
str varchar(1000)) engine=myisam/*!*/;
DELIMITER ;
# End of log file
ROLLBACK /* added by mysqlbinlog */;
/*!50003 SET COMPLETION_TYPE=@OLD_COMPLETION_TYPE*/;

/*!40019 SET @@session.max_insert_delayed_threads=0*/;

第四行的記錄：
D:\LAMP\MYSQL5\data>mysqlbinlog --start-position=254 --stop-position=330 yuelian
gdao_binglog.000001 > c:\\test1.txt
/*!50003 SET @OLD_COMPLETION_TYPE=@@COMPLETION_TYPE,COMPLETION_TYPE=0*/;
DELIMITER /*!*/;
# at 254
#7122 16:22:36 server id 1 end_log_pos 330     Query    thread_id=1    exec_time=0    error_code=0
use test/*!*/;
SET TIMESTAMP=1196583756/*!*/;
SET @@session.foreign_key_checks=1, @@session.sql_auto_is_null=1, @@session.unique_checks=1/*!*/;
SET @@session.sql_mode=1344274432/*!*/;
/*!\C utf8 *//*!*/;
SET @@session.character_set_client=33,@@session.collation_connection=33,@@session.collation_server=33/*!*/;
use `test`; insert into a1(str) values ('I love you'),('You love me') /*!*/;
DELIMITER ;
# End of log file
ROLLBACK /* added by mysqlbinlog */;
/*!50003 SET COMPLETION_TYPE=@OLD_COMPLETION_TYPE*/;

五、查看這些東西是爲了恢復數據，而不是爲了好玩。因此咱們最中仍是爲了要導入結果到MYSQL中。

D:\LAMP\MYSQL5\data>mysqlbinlog --start-position=134 --stop-position=330 yuelian
gdao_binglog.000001 | mysql -uroot -p

或者
D:\LAMP\MYSQL5\data>mysqlbinlog --start-position=134 --stop-position=330 yuelian
gdao_binglog.000001 >test1.txt
進入MYSQL導入
mysql> source c:\\test1.txt
Query OK, 0 rows affected (0.00 sec)

Query OK, 0 rows affected (0.00 sec)

Database changed
Query OK, 0 rows affected (0.00 sec)

Query OK, 0 rows affected (0.00 sec)

Query OK, 0 rows affected (0.00 sec)

Charset changed
Query OK, 0 rows affected (0.00 sec)

Query OK, 0 rows affected (0.03 sec)

Query OK, 0 rows affected (0.00 sec)

Query OK, 0 rows affected (0.00 sec)
六、查看數據：
mysql> show tables;
+----------------+
| Tables_in_test |
+----------------+
| a1             |
+----------------+
1 row in set (0.01 sec)

mysql> select * from a1;
+----+-------------+
| id | str         |
+----+-------------+
| 1 | I love you |
| 2 | You love me |
+----+-------------+
2 rows in set (0.00 sec)

 

 

將一個mysqlbinlog文件導爲sql文件

cd  cd /usr/local/mysql
./mysqlbinlog /usr/local/mysql/data/mysql-bin.000001 > /opt/001.sql

將mysql-bin.000001日誌文件導成001.sql

能夠在mysqlbinlog語句中經過--start-date和--stop-date選項指定DATETIME格式的起止時間

./mysqlbinlog --stop-date="2009-04-10 17:41:28" /usr/local/mysql/data/mysql-bin.000002 > /opt/004.sql

將mysql-bin.000002文件中截止到2009-04-10 17:41:28的日誌導成004.sql

 

./mysqlbinlog --start-date="2009-04-10 17:30:05" --stop-date="2009-04-10 17:41:28" /usr/local/mysql/data/mysql-bin.000002  /usr/local/mysql/data/mysql-bin.0000023> /opt/004.sql

----若是有多個binlog文件，中間用空格隔開，打上徹底路徑

 

./mysqlbinlog --start-date="2009-04-10 17:30:05" --stop-date="2009-04-10 17:41:28" /usr/local/mysql/data/mysql-bin.000002 |mysql -u root -p123456

或者  source /opt/004.sql

將mysql-bin.000002日誌文件中從2009-04-10 17:30:05到2008-04-10 17:41:28截止的sql語句導入到mysql中