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詳解MySQL數據庫恢復操作
詳解MySQL數據庫教程恢復操作
binlog是通過記錄二進制文件方式來備份數據，然後在從二進制文件將數據恢復到某一時段或某一操作點。
1：開啟binlog日志記錄
修改mysql教程配置文件mysql.ini，在[mysqld]節點下添加
Xml代碼
# log-bin
log-bin = E:/log/logbin.log
# log-bin
log-bin = E:/log/logbin.log路徑中不要包含中文和空格。重啟mysql服務。通過命令行停止和啟動mysql服務
Xml代碼
c:>net stop mysql;
c:>net start mysql;
c:>net stop mysql;
c:>net start mysql;進入命令行進入mysql並查看二進制日志是否已經啟動
Sql代碼
mysql>show variables like 'log_%';
mysql>show variables like 'log_%';日志成功開啟後，會在E:/log/目錄下創建logbin.index和logbin.000001兩個文件。logbin.000001就是數據庫的備份文件，以後就可以通過此文件對數據庫進行恢復操作。
2：查看備份的二進制文件
Sql代碼
c:mysqlbin>mysqlbinlog e:/log/logbin.000001
c:mysqlbin>mysqlbinlog e:/log/logbin.000001 日後記錄的操作多了，命令行方式基本就用不上了。可以使用將日志導出文件的方式來查看日志內容
2.1 導出
Xml代碼
c:mysqlbin>mysqlbinlog e:/log/logbin.000001 > e:/log/log.txt
c:mysqlbin>mysqlbinlog e:/log/logbin.000001 > e:/log/log.txt ">": 導入到文件中; ">>": 追加到文件中
如果有多個日志文件
Sql代碼
c:mysqlbin> mysqlbinlog e:/log/logbin.000001 > e:/log/log.sql
c:mysqlbin> mysqlbinlog e:/log/logbin.000002 >> e:/log/log.sql
c:mysqlbin> mysqlbinlog e:/log/logbin.000001 > e:/log/log.sql
c:mysqlbin> mysqlbinlog e:/log/logbin.000002 >> e:/log/log.sql 2.2 按指定位置導出：
Sql代碼
c:mysqlbin>mysqlbinlog --start-position=185 --stop-position=338 e:/log/logbin.000001 > e:/log/log3.txt
c:mysqlbin>mysqlbinlog --start-position=185 --stop-position=338 e:/log/logbin.000001 > e:/log/log3.txt 2.3 按指定時間導出：
Xml代碼
c:mysqlbin>mysqlbinlog --start-datetime="2010-01-07 11:25:56" --stop-datetime="2010-01-07 13:23:50" e:/log/logbin.000001 > e:/log/log_by_date22.txt
c:mysqlbin>mysqlbinlog --start-datetime="2010-01-07 11:25:56" --stop-datetime="2010-01-07 13:23:50" e:/log/logbin.000001 > e:/log/log_by_date22.txt
3：從備份恢復數據庫
做了一次更新操作，之後日志的內容如下：
Sql代碼
/*!40019 SET @@session.max_insert_delayed_threads=0*/;
/*!50003 SET @OLD_COMPLETION_TYPE=@@COMPLETION_TYPE,COMPLETION_TYPE=0*/;
DELIMITER /*!*/;
# at 4
#110107 13:23:50 server id 1 end_log_pos 106 Start: binlog v 4, server v 5.1.53-community-log created 110107 13:23:50 at startup
# Warning: this binlog is either in use or was not closed properly.
ROLLBACK/*!*/;
BINLOG '
ZqMmTQ8BAAAAZgAAAGoAAAABAAQANS4xLjUzLWNvbW11bml0eS1sb2cAAAAAAAAAAAAAAAAAAAAA
AAAAAAAAAAAAAAAAAABmoyZNEzgNAAgAEgAEBAQEEgAAUwAEGggAAAAICAgC
'/*!*/;
# at 106
#110107 13:26:58 server id 1 end_log_pos 185 Query thread_id=44 exec_time=1 error_code=0
SET TIMESTAMP=1294378018/*!*/;
SET @@session.ps教程eudo_thread_id=44/*!*/;
SET @@session.foreign_key_checks=1, @@session.sql_auto_is_null=1, @@session.unique_checks=1, @@session.autocommit=1/*!*/;
SET @@session.sql_mode=1344274432/*!*/;
SET @@session.auto_increment_increment=1, @@session.auto_increment_offset=1/*!*/;
/*!C utf8 *//*!*/;
SET @@session.character_set_client=33,@@session.collation_connection=33,@@session.collation_server=33/*!*/;
SET @@session.lc_time_names=0/*!*/;
SET @@session.collation_database=DEFAULT/*!*/;
BEGIN
/*!*/;
# at 185
#110107 13:26:58 server id 1 end_log_pos 338 Query thread_id=44 exec_time=1 error_code=0
use ncl-interactive/*!*/;
SET TIMESTAMP=1294378018/*!*/;
UPDATE `t_system_id` SET `id_value`='3000' WHERE (`table_name`='t_working_day')
/*!*/;
# at 338
#110107 13:26:58 server id 1 end_log_pos 365 Xid = 8016
COMMIT/*!*/;
DELIMITER ;
DELIMITER /*!*/;
DELIMITER ;
# End of log file
ROLLBACK /* added by mysqlbinlog */;
/*!50003 SET COMPLETION_TYPE=@OLD_COMPLETION_TYPE*/;
/*!40019 SET @@session.max_insert_delayed_threads=0*/;
/*!50003 SET @OLD_COMPLETION_TYPE=@@COMPLETION_TYPE,COMPLETION_TYPE=0*/;
DELIMITER /*!*/;
# at 4
#110107 13:23:50 server id 1 end_log_pos 106 Start: binlog v 4, server v 5.1.53-community-log created 110107 13:23:50 at startup
# Warning: this binlog is either in use or was not closed properly.
ROLLBACK/*!*/;
BINLOG '
ZqMmTQ8BAAAAZgAAAGoAAAABAAQANS4xLjUzLWNvbW11bml0eS1sb2cAAAAAAAAAAAAAAAAAAAAA
AAAAAAAAAAAAAAAAAABmoyZNEzgNAAgAEgAEBAQEEgAAUwAEGggAAAAICAgC
'/*!*/;
# at 106
#110107 13:26:58 server id 1 end_log_pos 185 Query thread_id=44 exec_time=1 error_code=0
SET TIMESTAMP=1294378018/*!*/;
SET @@session.pseudo_thread_id=44/*!*/;
SET @@session.foreign_key_checks=1, @@session.sql_auto_is_null=1, @@session.unique_checks=1, @@session.autocommit=1/*!*/;
SET @@session.sql_mode=1344274432/*!*/;
SET @@session.auto_increment_increment=1, @@session.auto_increment_offset=1/*!*/;
/*!C utf8 *//*!*/;
SET @@session.character_set_client=33,@@session.collation_connection=33,@@session.collation_server=33/*!*/;
SET @@session.lc_time_names=0/*!*/;
SET @@session.collation_database=DEFAULT/*!*/;
BEGIN
/*!*/;
# at 185
#110107 13:26:58 server id 1 end_log_pos 338 Query thread_id=44 exec_time=1 error_code=0
use ncl-interactive/*!*/;
SET TIMESTAMP=1294378018/*!*/;
UPDATE `t_system_id` SET `id_value`='3000' WHERE (`table_name`='t_working_day')
/*!*/;
# at 338
#110107 13:26:58 server id 1 end_log_pos 365 Xid = 8016
COMMIT/*!*/;
DELIMITER ;
DELIMITER /*!*/;
DELIMITER ;
# End of log file
ROLLBACK /* added by mysqlbinlog */;
/*!50003 SET COMPLETION_TYPE=@OLD_COMPLETION_TYPE*/;
3.1 恢復：
Sql代碼
c:mysqlbin>mysqlbinlog e:/log/logbin.000001 | mysql -u root -p
c:mysqlbin>mysqlbinlog e:/log/logbin.000001 | mysql -u root -p 3.2 按指定位置恢復：
Sql代碼
c:mysqlbin>mysqlbinlog --start-position=185 --stop-position=338 e:/log/logbin.000001 | mysql -u root -p
c:mysqlbin>mysqlbinlog --start-position=185 --stop-position=338 e:/log/logbin.000001 | mysql -u root -p 3.3 按指定時間恢復：
Xml代碼
c:mysqlbin>mysqlbinlog --start-datetime="2010-01-07 11:25:56" --stop-datetime="2010-01-07 13:23:50" e:/log/logbin.000001 | mysql -u root -p
c:mysqlbin>mysqlbinlog --start-datetime="2010-01-07 11:25:56" --stop-datetime="2010-01-07 13:23:50" e:/log/logbin.000001 | mysql -u root -p 3.4 通過導出的腳本文件恢復
Sql代碼
c:mysqlbin>mysql -e "source e:/log/log.sql"
c:mysqlbin>mysql -e "source e:/log/log.sql"4.其他常用操作
4.1 查看所有日志文件
Sql代碼
mysql>show master logs;
mysql>show master logs; 4.2 當前使用的binlog文件
Sql代碼
mysql>show binlog events g;
mysql>show binlog events g; 4.3 產生一個新的binlog日志文件
Sql代碼
mysql>flush logs;
mysql>flush logs; 4.4 刪除所有二進制日志，並從新開始記錄（注意：reset master命令會刪除所有的二進制日志）
Sql代碼
mysql > flush logs;
mysql > reset master;
mysql > flush logs;
mysql > reset master; 4.5 快速備份數據到sql文件
Sql代碼
c:mysqlbin>mysqldump -u root -p --opt --quick interactive > e:/log/mysqldump.sql
c:mysqlbin>mysqldump -u root -p --opt --quick interactive > e:/log/mysqldump.sql 為了方便查看，把從腳本恢復的命令在寫一次
Sql代碼
c:mysqlbin>mysql -e "source e:/log/mysqldump.sql"
