mysql数据恢复工具

豆包ko

　　最近一星期全在捣鼓mysql数据恢复，那个头大啊…………
　　
　　网上找了找资料说使用mysqlbinlog 可以恢复。就试了试。
　　
　　查询是否开启日志
　　
　　show variables like 'log_bin';
　　
　　显示为on，恭喜你开启了日志
　　
　　下面就是恢复数据了
　　
　　在恢复前还是先了解下mysqlbinlog的使用吧
　　
　　在命令行中打开mysql的bin目录，执行mysqlbinlog -？
　　

{mysqlhome}\bin>mysqlbinlog -?
mysqlbinlog Ver 3.3 for Win32 at x86
Copyright (c) 2000, 2012, Oracle and/or its affiliates. All rights reserved.
Oracle is a registered trademark of Oracle Corporation and/or its
affiliates. Other names may be trademarks of their respective
owners.
Dumps a MySQL binary log in a format usable for viewing or for piping to
the mysql command line client.
Usage: mysqlbinlog [options] log-files
-?, --help          Display this help and exit.
--base64-output=name
Determine when the output statements should be
base64-encoded BINLOG statements: 'never' disables it and
works only for binlogs without row-based events;
'decode-rows' decodes row events into commented
pseudo-SQL statements if the --verbose option is also
given; 'auto' prints base64 only when necessary (i.e.,
for row-based events and format description events).  If
no --base64-output[=name] option is given at all, the
default is 'auto'.
--bind-address=name IP address to bind to.
--character-sets-dir=name
Directory for character set files.
-d, --database=name List entries for just this database (local log only).
--debug-check       Check memory and open file usage at exit .
--debug-info        Print some debug info at exit.
--default-auth=name Default authentication client-side plugin to use.
-D, --disable-log-bin
Disable binary log. This is useful, if you enabled
--to-last-log and are sending the output to the same
MySQL server. This way you could avoid an endless loop.
You would also like to use it when restoring after a
crash to avoid duplication of the statements you already
have. NOTE: you will need a SUPER privilege to use this
option.
-F, --force-if-open Force if binlog was not closed properly.
(Defaults to on; use --skip-force-if-open to disable.)
-f, --force-read    Force reading unknown binlog events.
-H, --hexdump       Augment output with hexadecimal and ASCII event dump.
-h, --host=name     Get the binlog from server.
-l, --local-load=name
Prepare local temporary files for LOAD DATA INFILE in the
specified directory.
-o, --offset=#      Skip the first N entries.
-p, --password[=name]
Password to connect to remote server.
--plugin-dir=name   Directory for client-side plugins.
-P, --port=#        Port number to use for connection or 0 for default to, in
order of preference, my.cnf, $MYSQL_TCP_PORT,
/etc/services, built-in default (3306).
--protocol=name     The protocol to use for connection (tcp, socket, pipe,
memory).
-R, --read-from-remote-server
Read binary logs from a MySQL server. This is an alias
for read-from-remote-master=BINLOG-DUMP-NON-GTIDS.
--read-from-remote-master=name
Read binary logs from a MySQL server through the
COM_BINLOG_DUMP or COM_BINLOG_DUMP_GTID commands by
setting the option to either BINLOG-DUMP-NON-GTIDS or
BINLOG-DUMP-GTIDS, respectively. If
--read-from-remote-master=BINLOG-DUMP-GTIDS is combined
with --exclude-gtids, transactions can be filtered out on
the master avoiding unnecessary network traffic.
--raw               Requires -R. Output raw binlog data instead of SQL
statements, output is to log files.
-r, --result-file=name
Direct output to a given file. With --raw this is a
prefix for the file names.
--server-id=#       Extract only binlog entries created by the server having
the given id.
--set-charset=name  Add 'SET NAMES character_set' to the output.
--shared-memory-base-name=name
Base name of shared memory.
-s, --short-form    Just show regular queries: no extra info and no row-based
events. This is for testing only, and should not be used
in production systems. If you want to suppress
base64-output, consider using --base64-output=never
instead.
-S, --socket=name   The socket file to use for connection.
--start-datetime=name
Start reading the binlog at first event having a datetime
equal or posterior to the argument; the argument must be
a date and time in the local time zone, in any format
accepted by the MySQL server for DATETIME and TIMESTAMP
types, for example: 2004-12-25 11:25:56 (you should
probably use quotes for your shell to set it properly).
-j, --start-position=#
Start reading the binlog at position N. Applies to the
first binlog passed on the command line.
--stop-datetime=name
Stop reading the binlog at first event having a datetime
equal or posterior to the argument; the argument must be
a date and time in the local time zone, in any format
accepted by the MySQL server for DATETIME and TIMESTAMP
types, for example: 2004-12-25 11:25:56 (you should
probably use quotes for your shell to set it properly).
--stop-never        Wait for more data from the server instead of stopping at
the end of the last log. Implicitly sets --to-last-log
but instead of stopping at the end of the last log it
continues to wait till the server disconnects.
--stop-never-slave-server-id=#
The slave server ID used for stop-never
--stop-position=#   Stop reading the binlog at position N. Applies to the
last binlog passed on the command line.
-t, --to-last-log   Requires -R. Will not stop at the end of the requested
binlog but rather continue printing until the end of the
last binlog of the MySQL server. If you send the output
to the same MySQL server, that may lead to an endless
loop.
-u, --user=name     Connect to the remote server as username.
-v, --verbose       Reconstruct pseudo-SQL statements out of row events. -v
-v adds comments on column data types.
-V, --version       Print version and exit.
--open-files-limit=#
Used to reserve file descriptors for use by this program.
-c, --verify-binlog-checksum
Verify checksum binlog events.
--binlog-row-event-max-size=#
The maximum size of a row-based binary log event in
bytes. Rows will be grouped into events smaller than this
size if possible. This value must be a multiple of 256.
--skip-gtids        Do not print Global Transaction Identifier information
(SET GTID_NEXT=... etc).
--include-gtids=name
Print events whose Global Transaction Identifiers were
provided.
--exclude-gtids=name
Print all events but those whose Global Transaction
Identifiers were provided.
Variables (--variable-name=value)
and boolean options {FALSE|TRUE}  Value (after reading options)
--------------------------------- ----------------------------------------
base64-output                     (No default value)
bind-address                      (No default value)
character-sets-dir                (No default value)
database                          (No default value)
debug-check                       FALSE
debug-info                        FALSE
default-auth                      (No default value)
disable-log-bin                   FALSE
force-if-open                     TRUE
force-read                        FALSE
hexdump                           FALSE
host                              (No default value)
local-load                        (No default value)
offset                            0
plugin-dir                        (No default value)
port                              6306
read-from-remote-server           FALSE
read-from-remote-master           (No default value)
raw                               FALSE
result-file                       (No default value)
server-id                         0
set-charset                       (No default value)
shared-memory-base-name           (No default value)
short-form                        FALSE
socket                            (No default value)
start-datetime                    (No default value)
start-position                    4
stop-datetime                     (No default value)
stop-never                        FALSE
stop-never-slave-server-id        65535
stop-position                     18446744073709551615
to-last-log                       FALSE
user                              (No default value)
open-files-limit                  18432
verify-binlog-checksum            FALSE
binlog-row-event-max-size         4294967040
skip-gtids                        FALSE
include-gtids                     (No default value)
exclude-gtids                     (No default value)

　　如果英文不好可以借助google翻译，有道翻译或直接在百度中找下相关资料即可这里给个参考
　　
　　http://hi.baidu.com/cici_hust/blog/item/3d1d18ee08995a09fcfa3c1b.html
　　
　　其实这篇文章说的很好了，就是排版上有点糟。
　　
　　知道参数了 就可以恢复了
　　mysqlbinlog  --startdate=“”  日志目录/mysql-bin-000012 >mysql -uroot -p 数据库
　　
　　恢复的详细介绍可参考
　　http://topic.csdn.net/u/20090608/20/e50feb34-0a07-4675-80d4-2eac35973286.html
　　
　　当然参数可以根据需要自己添加
　　
　　到处为sql（ 其中-v -v 低版本是不支持的，需要5.1.18以上）
　　mysqlbinlog -uroot -p -v  -v -d 数据库的名称  日志目录/mysql-bin-000012 > sql.sql
　　
　　
　　但是由于使用的mysql数据库时间过长，备份日志不全，没办法就把日志中的删除语句改为了 蒲绒的sql插入语句
　　
　　但是发现在处理大字段上出现了问题，在sql中大字段都是‘\x00\x00’形式
　　
　　导入数据库时 报  Unkown  command ‘\x’  至今未得到解决 ，哪位如果处理过类似问题，还希望多多指教！！