mysqlfrm 是一个恢复性质的工具，用来读取.frm文件并从该文件中找到表定义数据生成CREATE语句。在大多数情况下，生成的CREATE语句用于在另一个服务器上创建表或进行诊断等。然而，有些功能是不保存在.frm文件中的，因此这些功能将被忽略的。如：
- 外键约束
- 自增长序列
mysqlfrm 有两种操作模式。默认的模式是再生个实例，使用--basedir选项或指定--server选项来连接到已经安装的实例。这种过程不会改变原始的.frm文件。该模式也需要指定--port选项来给再生的实例使用，该端口不能与现有的实例冲突。在读取.frm文件后，再生的实例将被关闭，所有的临时文件将被删除的。文章源自运维生存时间-https://www.ttlsa.com/mysql/mysql-utilities-mysqlfrm/
另一个模式是诊断模式，需要指定 --diagnostic 选项。byte-by-byte读取.frm文件 尽可能多的恢复信息。该模式有更多的局限性，不能校验字符集。文章源自运维生存时间-https://www.ttlsa.com/mysql/mysql-utilities-mysqlfrm/
当使用默认模式无法读取文件或者该服务器上没有安装MySQL实例就使用诊断模式。文章源自运维生存时间-https://www.ttlsa.com/mysql/mysql-utilities-mysqlfrm/
需要指定.frm文件的路径，也可以指定一个目录，该目录下的所有.frm文件将被读取。文章源自运维生存时间-https://www.ttlsa.com/mysql/mysql-utilities-mysqlfrm/
可以指定数据库名称用来产生CREATE语句，格式如下：database_name:table_name.frm，如：oltp:t1.frm。可选的数据库名称也可以使用路径，如 /home/me/oltp:t1.frm，将使用oltp作为数据库名。如果省略了数据库名称和路径，最后的一个文件夹将作为数据库名称的。如 /home/me/data1/t1.frm，data1将作为数据库名。如果不想最后的文件夹作为数据库名，只需指定冒号，如 /home/me/data1/:t1.frm，在这种情况下，CREATE语句将忽略数据库。文章源自运维生存时间-https://www.ttlsa.com/mysql/mysql-utilities-mysqlfrm/
选项
MySQL Utilities mysqlfrm version 1.5.3
License type: GPLv2
Usage: mysqlfrm --server=[user[:<pass>]@host[:<port>][:<socket>]|<login-path>[:<port>][:<socket>]] [path\tbl1.frm|db:tbl.frm]
mysqlfrm - show CREATE TABLE from .frm files
Options:
--version show program's version number and exit
--license display program's license and exit
--help
--basedir=BASEDIR the base directory for the server,默认模式
--diagnostic read the frm files byte-by-byte to form the CREATE
statement. May require the --server or --basedir
options to decipher character set information
--new-storage-engine=NEW_ENGINE
change ENGINE clause to use this engine.
--frmdir=FRMDIR save the new .frm files in this directory. Used and
valid with --new-storage-engine only.
--port=PORT Port to use for the spawned server.未使用的端口，默认模式
-s, --show-stats show file statistics and general table information.
--server=SERVER connection information for the server in the form:
<user>[:<password>]@<host>[:<port>][:<socket>] or
<login-path>[:<port>][:<socket>] (optional) - if
provided, the storage engine and character set
information will be validated against this server.
--user=USER user account to launch spawned server. Required if
running as root user. Used only in the default mode.
--start-timeout=START_TIMEOUT
Number of seconds to wait for spawned server to start.
Default = 10.
-v, --verbose control how much information is displayed. e.g., -v =
verbose, -vv = more verbose, -vvv = debug
-q, --quiet turn off all messages for quiet execution.
--ssl-ca=SSL_CA The path to a file that contains a list of trusted SSL
CAs.
--ssl-cert=SSL_CERT The name of the SSL certificate file to use for
establishing a secure connection.
--ssl-key=SSL_KEY The name of the SSL key file to use for establishing a
secure connection.
注意
1. 某些引擎表在默认模式下不可读取的。如PARTITION, PERFORMANCE_SCHEMA，必需在诊断模式下可读。文章源自运维生存时间-https://www.ttlsa.com/mysql/mysql-utilities-mysqlfrm/
2. 要在创建语句中改变存储引擎，可使用--new-storage-engine 选项。如果有指定该选项，同时必须指定--frmdir选项，该工具生成新的.frm文件，前缀为new_，并保存在--frmdir目录下。文章源自运维生存时间-https://www.ttlsa.com/mysql/mysql-utilities-mysqlfrm/
3. 关掉所有信息除了CREATE 语句和警告或错误信息，使用--quiet选项。文章源自运维生存时间-https://www.ttlsa.com/mysql/mysql-utilities-mysqlfrm/
4. 使用--show-stats 选项统计每个.frm文件信息。文章源自运维生存时间-https://www.ttlsa.com/mysql/mysql-utilities-mysqlfrm/
5. 使用--user 选项指定再生的实例以哪个权限运行。文章源自运维生存时间-https://www.ttlsa.com/mysql/mysql-utilities-mysqlfrm/
6. 如果再生的实例超过10秒启动，需调大--start-timeout 选项参数。文章源自运维生存时间-https://www.ttlsa.com/mysql/mysql-utilities-mysqlfrm/
实例
# mysqlfrm --basedir=/usr ttlsa_com:data.frm --port=3333 --user=mysql -vvv
# Checking read access to .frm files
# Creating a temporary datadir = /data/mydata3306/ttlsa_com/5831a350-3c22-4869-a6d7-9c843fe51ac7
# Spawning server with --user=mysql.
# Starting the spawned server on port 3333 ...
# Cloning the MySQL server located at /usr.
# Configuring new instance...
# Locating mysql tools...
# Location of files:
# mysqld: /usr/sbin/mysqld
# mysqladmin: /usr/bin/mysqladmin
# mysql_system_tables.sql: /usr/share/mysql/mysql_system_tables.sql
# mysql_system_tables_data.sql: /usr/share/mysql/mysql_system_tables_data.sql
# mysql_test_data_timezone.sql: /usr/share/mysql/mysql_test_data_timezone.sql
# fill_help_tables.sql: /usr/share/mysql/fill_help_tables.sql
# Setting up empty database and mysql tables...
2015-01-20 19:12:35 0 [Warning] TIMESTAMP with implicit DEFAULT value is deprecated. Please use --explicit_defaults_for_timestamp server option (see documentation for more details).
2015-01-20 19:12:35 18168 [Note] Plugin 'FEDERATED' is disabled.
2015-01-20 19:12:35 18168 [Note] InnoDB: Using atomics to ref count buffer pool pages
2015-01-20 19:12:35 18168 [Note] InnoDB: The InnoDB memory heap is disabled
2015-01-20 19:12:35 18168 [Note] InnoDB: Mutexes and rw_locks use GCC atomic builtins
2015-01-20 19:12:35 18168 [Note] InnoDB: Memory barrier is not used
2015-01-20 19:12:35 18168 [Note] InnoDB: Compressed tables use zlib 1.2.3
2015-01-20 19:12:35 18168 [Note] InnoDB: Using Linux native AIO
2015-01-20 19:12:35 18168 [Note] InnoDB: Using CPU crc32 instructions
2015-01-20 19:12:35 18168 [Note] InnoDB: Initializing buffer pool, size = 128.0M
2015-01-20 19:12:35 18168 [Note] InnoDB: Completed initialization of buffer pool
2015-01-20 19:12:35 18168 [Note] InnoDB: The first specified data file ./ibdata1 did not exist: a new database to be created!
2015-01-20 19:12:35 18168 [Note] InnoDB: Setting file ./ibdata1 size to 12 MB
2015-01-20 19:12:35 18168 [Note] InnoDB: Database physically writes the file full: wait...
2015-01-20 19:12:35 18168 [Note] InnoDB: Setting log file ./ib_logfile101 size to 48 MB
2015-01-20 19:12:36 18168 [Note] InnoDB: Setting log file ./ib_logfile1 size to 48 MB
2015-01-20 19:12:36 18168 [Note] InnoDB: Renaming log file ./ib_logfile101 to ./ib_logfile0
2015-01-20 19:12:36 18168 [Warning] InnoDB: New log files created, LSN=45781
2015-01-20 19:12:36 18168 [Note] InnoDB: Doublewrite buffer not found: creating new
2015-01-20 19:12:36 18168 [Note] InnoDB: Doublewrite buffer created
2015-01-20 19:12:36 18168 [Note] InnoDB: 128 rollback segment(s) are active.
2015-01-20 19:12:36 18168 [Warning] InnoDB: Creating foreign key constraint system tables.
2015-01-20 19:12:36 18168 [Note] InnoDB: Foreign key constraint system tables created
2015-01-20 19:12:36 18168 [Note] InnoDB: Creating tablespace and datafile system tables.
2015-01-20 19:12:36 18168 [Note] InnoDB: Tablespace and datafile system tables created.
2015-01-20 19:12:36 18168 [Note] InnoDB: Waiting for purge to start
2015-01-20 19:12:36 18168 [Note] InnoDB: 5.6.22 started; log sequence number 0
2015-01-20 19:12:38 18168 [Note] Binlog end
2015-01-20 19:12:38 18168 [Note] InnoDB: FTS optimize thread exiting.
2015-01-20 19:12:38 18168 [Note] InnoDB: Starting shutdown...
2015-01-20 19:12:39 18168 [Note] InnoDB: Shutdown completed; log sequence number 1625977
# Starting new instance of the server...
# Startup command for new server:
/usr/sbin/mysqld --no-defaults --datadir=/data/mydata3306/ttlsa_com/5831a350-3c22-4869-a6d7-9c843fe51ac7 --tmpdir=/data/mydata3306/ttlsa_com/5831a350-3c22-4869-a6d7-9c843fe51ac7 --pid-file=/data/mydata3306/ttlsa_com/5831a350-3c22-4869-a6d7-9c843fe51ac7/clone.pid --port=3333 --server-id=101 --basedir=/usr --socket=/data/mydata3306/ttlsa_com/5831a350-3c22-4869-a6d7-9c843fe51ac7/mysql.sock --user=mysql
# Testing connection to new instance...
2015-01-20 19:12:40 0 [Warning] TIMESTAMP with implicit DEFAULT value is deprecated. Please use --explicit_defaults_for_timestamp server option (see documentation for more details).
2015-01-20 19:12:40 18193 [Note] Plugin 'FEDERATED' is disabled.
2015-01-20 19:12:40 18193 [Note] InnoDB: Using atomics to ref count buffer pool pages
2015-01-20 19:12:40 18193 [Note] InnoDB: The InnoDB memory heap is disabled
2015-01-20 19:12:40 18193 [Note] InnoDB: Mutexes and rw_locks use GCC atomic builtins
2015-01-20 19:12:40 18193 [Note] InnoDB: Memory barrier is not used
2015-01-20 19:12:40 18193 [Note] InnoDB: Compressed tables use zlib 1.2.3
2015-01-20 19:12:40 18193 [Note] InnoDB: Using Linux native AIO
2015-01-20 19:12:40 18193 [Note] InnoDB: Using CPU crc32 instructions
2015-01-20 19:12:40 18193 [Note] InnoDB: Initializing buffer pool, size = 128.0M
2015-01-20 19:12:40 18193 [Note] InnoDB: Completed initialization of buffer pool
2015-01-20 19:12:40 18193 [Note] InnoDB: Highest supported file format is Barracuda.
2015-01-20 19:12:40 18193 [Note] InnoDB: 128 rollback segment(s) are active.
2015-01-20 19:12:40 18193 [Note] InnoDB: Waiting for purge to start
2015-01-20 19:12:40 18193 [Note] InnoDB: 5.6.22 started; log sequence number 1625977
2015-01-20 19:12:40 18193 [Warning] No existing UUID has been found, so we assume that this is the first time that this server has been started. Generating a new UUID: 3f618744-a095-11e4-9f53-0050569f3bb8.
2015-01-20 19:12:40 18193 [Note] Server hostname (bind-address): '*'; port: 3333
2015-01-20 19:12:40 18193 [Note] IPv6 is available.
2015-01-20 19:12:40 18193 [Note] - '::' resolves to '::';
2015-01-20 19:12:40 18193 [Note] Server socket created on IP: '::'.
2015-01-20 19:12:40 18193 [Note] Event Scheduler: Loaded 0 events
2015-01-20 19:12:40 18193 [Note] /usr/sbin/mysqld: ready for connections.
Version: '5.6.22' socket: '/data/mydata3306/ttlsa_com/5831a350-3c22-4869-a6d7-9c843fe51ac7/mysql.sock' port: 3333 MySQL Community Server (GPL)
# trying again...
# Success!
# Setting the root password...
Warning: Using a password on the command line interface can be insecure.
# Connection Information:
# -uroot -proot --socket=/data/mydata3306/ttlsa_com/5831a350-3c22-4869-a6d7-9c843fe51ac7/mysql.sock
#...done.
# Connecting to spawned server
done.
# Reading .frm files
#
# Reading the data.frm file.
# Changing engine for .frm file /data/mydata3306/ttlsa_com/5831a350-3c22-4869-a6d7-9c843fe51ac7/ttlsa_com_temp/data.frm:
# Skipping to header at : 2
# General Data from .frm file:
{'IO_SIZE': 4096,
'MYSQL_VERSION_ID': 50622,
'avg_row_length': 0,
'charset_low': 0,
'create_options': 8,
'db_create_pack': 2,
'default_charset': 8,
'default_part_eng': 0,
'extra_size': 28,
'frm_file_ver': 5,
'frm_version': 9,
'key_block_size': 0,
'key_info_length': 53,
'key_length': 706,
'legacy_db_type': 'INNODB',
'length': 12288,
'max_rows': 0,
'min_rows': 0,
'rec_length': 39,
'row_type': 0,
'table_charset': 8,
'tmp_key_length': 706}
# Engine string: InnoDB
# Server version in file: 5.6.22
#
# CREATE statement for data.frm:
#
CREATE TABLE `ttlsa_com`.`data` (
`id` int(11) NOT NULL AUTO_INCREMENT,
`value` char(30) NOT NULL DEFAULT '',
`count` int(11) DEFAULT NULL,
PRIMARY KEY (`value`),
KEY `id` (`id`)
) ENGINE=InnoDB DEFAULT CHARSET=latin1
# Shutting down spawned server
# Removing the temporary datadir
2015-01-20 19:12:40 18193 [Note] /usr/sbin/mysqld: Normal shutdown
2015-01-20 19:12:40 18193 [Note] Giving 0 client threads a chance to die gracefully
2015-01-20 19:12:40 18193 [Note] Event Scheduler: Purging the queue. 0 events
2015-01-20 19:12:40 18193 [Note] Shutting down slave threads
2015-01-20 19:12:40 18193 [Note] Forcefully disconnecting 0 remaining clients
2015-01-20 19:12:40 18193 [Note] Binlog end
2015-01-20 19:12:40 18193 [Note] Shutting down plugin 'partition'
2015-01-20 19:12:40 18193 [Note] Shutting down plugin 'BLACKHOLE'
2015-01-20 19:12:40 18193 [Note] Shutting down plugin 'ARCHIVE'
2015-01-20 19:12:40 18193 [Note] Shutting down plugin 'PERFORMANCE_SCHEMA'
2015-01-20 19:12:40 18193 [Note] Shutting down plugin 'INNODB_SYS_DATAFILES'
2015-01-20 19:12:40 18193 [Note] Shutting down plugin 'INNODB_SYS_TABLESPACES'
2015-01-20 19:12:40 18193 [Note] Shutting down plugin 'INNODB_SYS_FOREIGN_COLS'
2015-01-20 19:12:40 18193 [Note] Shutting down plugin 'INNODB_SYS_FOREIGN'
2015-01-20 19:12:40 18193 [Note] Shutting down plugin 'INNODB_SYS_FIELDS'
2015-01-20 19:12:40 18193 [Note] Shutting down plugin 'INNODB_SYS_COLUMNS'
2015-01-20 19:12:40 18193 [Note] Shutting down plugin 'INNODB_SYS_INDEXES'
2015-01-20 19:12:40 18193 [Note] Shutting down plugin 'INNODB_SYS_TABLESTATS'
2015-01-20 19:12:40 18193 [Note] Shutting down plugin 'INNODB_SYS_TABLES'
2015-01-20 19:12:40 18193 [Note] Shutting down plugin 'INNODB_FT_INDEX_TABLE'
2015-01-20 19:12:40 18193 [Note] Shutting down plugin 'INNODB_FT_INDEX_CACHE'
2015-01-20 19:12:40 18193 [Note] Shutting down plugin 'INNODB_FT_CONFIG'
2015-01-20 19:12:40 18193 [Note] Shutting down plugin 'INNODB_FT_BEING_DELETED'
2015-01-20 19:12:40 18193 [Note] Shutting down plugin 'INNODB_FT_DELETED'
2015-01-20 19:12:40 18193 [Note] Shutting down plugin 'INNODB_FT_DEFAULT_STOPWORD'
2015-01-20 19:12:40 18193 [Note] Shutting down plugin 'INNODB_METRICS'
2015-01-20 19:12:40 18193 [Note] Shutting down plugin 'INNODB_BUFFER_POOL_STATS'
2015-01-20 19:12:40 18193 [Note] Shutting down plugin 'INNODB_BUFFER_PAGE_LRU'
2015-01-20 19:12:40 18193 [Note] Shutting down plugin 'INNODB_BUFFER_PAGE'
2015-01-20 19:12:40 18193 [Note] Shutting down plugin 'INNODB_CMP_PER_INDEX_RESET'
2015-01-20 19:12:40 18193 [Note] Shutting down plugin 'INNODB_CMP_PER_INDEX'
2015-01-20 19:12:40 18193 [Note] Shutting down plugin 'INNODB_CMPMEM_RESET'
2015-01-20 19:12:40 18193 [Note] Shutting down plugin 'INNODB_CMPMEM'
2015-01-20 19:12:40 18193 [Note] Shutting down plugin 'INNODB_CMP_RESET'
2015-01-20 19:12:40 18193 [Note] Shutting down plugin 'INNODB_CMP'
2015-01-20 19:12:40 18193 [Note] Shutting down plugin 'INNODB_LOCK_WAITS'
2015-01-20 19:12:40 18193 [Note] Shutting down plugin 'INNODB_LOCKS'
2015-01-20 19:12:40 18193 [Note] Shutting down plugin 'INNODB_TRX'
2015-01-20 19:12:40 18193 [Note] Shutting down plugin 'InnoDB'
2015-01-20 19:12:40 18193 [Note] InnoDB: FTS optimize thread exiting.
2015-01-20 19:12:40 18193 [Note] InnoDB: Starting shutdown...
#...done.
2015-01-20 19:12:42 18193 [Note] InnoDB: Shutdown completed; log sequence number 1625987
2015-01-20 19:12:42 18193 [Note] Shutting down plugin 'CSV'
2015-01-20 19:12:42 18193 [Note] Shutting down plugin 'MEMORY'
2015-01-20 19:12:42 18193 [Note] Shutting down plugin 'MRG_MYISAM'
2015-01-20 19:12:42 18193 [Note] Shutting down plugin 'MyISAM'
2015-01-20 19:12:42 18193 [Note] Shutting down plugin 'sha256_password'
2015-01-20 19:12:42 18193 [Note] Shutting down plugin 'mysql_old_password'
2015-01-20 19:12:42 18193 [Note] Shutting down plugin 'mysql_native_password'
2015-01-20 19:12:42 18193 [Note] Shutting down plugin 'binlog'
2015-01-20 19:12:42 18193 [Note] /usr/sbin/mysqld: Shutdown complete
看看执行过程反过头去看看上面所说是否正确。文章源自运维生存时间-https://www.ttlsa.com/mysql/mysql-utilities-mysqlfrm/
# mysqlfrm --basedir=/usr --port=3333 --user=mysql /data/mydata3306/ttlsa_com/data.frm /data/mydata3306/mysql/bbs_ttlsa_com:user.frm
# Spawning server with --user=mysql.
# Starting the spawned server on port 3333 ... done.
# Reading .frm files
#
# Reading the user.frm file.
#
# CREATE statement for /data/mydata3306/mysql/user.frm:
#
CREATE TABLE `bbs_ttlsa_com`.`user` (
`Host` char(60) COLLATE utf8_bin NOT NULL DEFAULT '',
`User` char(16) COLLATE utf8_bin NOT NULL DEFAULT '',
`Password` char(41) CHARACTER SET latin1 COLLATE latin1_bin NOT NULL DEFAULT '',
`Select_priv` enum('N','Y') CHARACTER SET utf8 NOT NULL DEFAULT 'N',
`Insert_priv` enum('N','Y') CHARACTER SET utf8 NOT NULL DEFAULT 'N',
`Update_priv` enum('N','Y') CHARACTER SET utf8 NOT NULL DEFAULT 'N',
`Delete_priv` enum('N','Y') CHARACTER SET utf8 NOT NULL DEFAULT 'N',
`Create_priv` enum('N','Y') CHARACTER SET utf8 NOT NULL DEFAULT 'N',
`Drop_priv` enum('N','Y') CHARACTER SET utf8 NOT NULL DEFAULT 'N',
`Reload_priv` enum('N','Y') CHARACTER SET utf8 NOT NULL DEFAULT 'N',
`Shutdown_priv` enum('N','Y') CHARACTER SET utf8 NOT NULL DEFAULT 'N',
`Process_priv` enum('N','Y') CHARACTER SET utf8 NOT NULL DEFAULT 'N',
`File_priv` enum('N','Y') CHARACTER SET utf8 NOT NULL DEFAULT 'N',
`Grant_priv` enum('N','Y') CHARACTER SET utf8 NOT NULL DEFAULT 'N',
`References_priv` enum('N','Y') CHARACTER SET utf8 NOT NULL DEFAULT 'N',
`Index_priv` enum('N','Y') CHARACTER SET utf8 NOT NULL DEFAULT 'N',
`Alter_priv` enum('N','Y') CHARACTER SET utf8 NOT NULL DEFAULT 'N',
`Show_db_priv` enum('N','Y') CHARACTER SET utf8 NOT NULL DEFAULT 'N',
`Super_priv` enum('N','Y') CHARACTER SET utf8 NOT NULL DEFAULT 'N',
`Create_tmp_table_priv` enum('N','Y') CHARACTER SET utf8 NOT NULL DEFAULT 'N',
`Lock_tables_priv` enum('N','Y') CHARACTER SET utf8 NOT NULL DEFAULT 'N',
`Execute_priv` enum('N','Y') CHARACTER SET utf8 NOT NULL DEFAULT 'N',
`Repl_slave_priv` enum('N','Y') CHARACTER SET utf8 NOT NULL DEFAULT 'N',
`Repl_client_priv` enum('N','Y') CHARACTER SET utf8 NOT NULL DEFAULT 'N',
`Create_view_priv` enum('N','Y') CHARACTER SET utf8 NOT NULL DEFAULT 'N',
`Show_view_priv` enum('N','Y') CHARACTER SET utf8 NOT NULL DEFAULT 'N',
`Create_routine_priv` enum('N','Y') CHARACTER SET utf8 NOT NULL DEFAULT 'N',
`Alter_routine_priv` enum('N','Y') CHARACTER SET utf8 NOT NULL DEFAULT 'N',
`Create_user_priv` enum('N','Y') CHARACTER SET utf8 NOT NULL DEFAULT 'N',
`Event_priv` enum('N','Y') CHARACTER SET utf8 NOT NULL DEFAULT 'N',
`Trigger_priv` enum('N','Y') CHARACTER SET utf8 NOT NULL DEFAULT 'N',
`Create_tablespace_priv` enum('N','Y') CHARACTER SET utf8 NOT NULL DEFAULT 'N',
`ssl_type` enum('','ANY','X509','SPECIFIED') CHARACTER SET utf8 NOT NULL DEFAULT '',
`ssl_cipher` blob NOT NULL,
`x509_issuer` blob NOT NULL,
`x509_subject` blob NOT NULL,
`max_questions` int(11) unsigned NOT NULL DEFAULT '0',
`max_updates` int(11) unsigned NOT NULL DEFAULT '0',
`max_connections` int(11) unsigned NOT NULL DEFAULT '0',
`max_user_connections` int(11) unsigned NOT NULL DEFAULT '0',
`plugin` char(64) COLLATE utf8_bin DEFAULT '',
`authentication_string` text COLLATE utf8_bin,
`password_expired` enum('N','Y') CHARACTER SET utf8 NOT NULL DEFAULT 'N',
PRIMARY KEY (`Host`,`User`)
) ENGINE=MyISAM DEFAULT CHARSET=utf8 COLLATE=utf8_bin COMMENT='Users and global privileges'
#
# Reading the data.frm file.
#
# CREATE statement for /data/mydata3306/ttlsa_com/data.frm:
#
CREATE TABLE `ttlsa_com`.`data` (
`id` int(11) NOT NULL AUTO_INCREMENT,
`value` char(30) NOT NULL DEFAULT '',
`count` int(11) DEFAULT NULL,
PRIMARY KEY (`value`),
KEY `id` (`id`)
) ENGINE=InnoDB DEFAULT CHARSET=latin1
#...done.
/data/mydata3306/ttlsa_com/data.frm 数据库名为ttlsa_com;文章源自运维生存时间-https://www.ttlsa.com/mysql/mysql-utilities-mysqlfrm/
/data/mydata3306/mysql/bbs_ttlsa_com:user.frm 数据库名为bbs_ttlsa_com。文章源自运维生存时间-https://www.ttlsa.com/mysql/mysql-utilities-mysqlfrm/
以诊断模式读取目录中的所有的FRM文件：文章源自运维生存时间-https://www.ttlsa.com/mysql/mysql-utilities-mysqlfrm/
# mysqlfrm --diagnostic /data/mydata3306/ttlsa_com # WARNING: Cannot generate character set or collation names without the --server option. # CAUTION: The diagnostic mode is a best-effort parse of the .frm file. As such, it may not identify all of the components of the table correctly. This is especially true for damaged files. It will also not read the default values for the columns and the resulting statement may not be syntactically correct. # Reading .frm file for /data/mydata3306/ttlsa_com/bbs_categories.frm: # The .frm file is a TABLE. # CREATE TABLE Statement: # Reading .frm file for /data/mydata3306/ttlsa_com/data.frm: # The .frm file is a TABLE. # CREATE TABLE Statement: CREATE TABLE `ttlsa_com`.`data` ( `id` int(11) NOT NULL AUTO_INCREMENT, `value` char(30) NOT NULL, `count` int(11) DEFAULT NULL, PRIMARY KEY `PRIMARY` (`value`), KEY `id` (`id`) ) ENGINE=InnoDB; #...done.
# mysqlfrm --diagnostic /data/mydata3306/ttlsa_com/data.frm -vvv
# WARNING: Cannot generate character set or collation names without the --server option.
# CAUTION: The diagnostic mode is a best-effort parse of the .frm file. As such, it may not identify all of the components of the table correctly. This is especially true for damaged files. It will also not read the default values for the columns and the resulting statement may not be syntactically correct.
# Reading .frm file for /data/mydata3306/ttlsa_com/data.frm:
# The .frm file is a TABLE.
# Skipping to header at : 2
# General Data from .frm file:
{'IO_SIZE': 4096,
'MYSQL_VERSION_ID': 50622,
'avg_row_length': 0,
'charset_low': 0,
'create_options': 8,
'db_create_pack': 2,
'default_charset': 8,
'default_part_eng': 0,
'extra_size': 28,
'frm_file_ver': 5,
'frm_version': 9,
'key_block_size': 0,
'key_info_length': 53,
'key_length': 706,
'legacy_db_type': 'INNODB',
'length': 12288,
'max_rows': 0,
'min_rows': 0,
'rec_length': 39,
'row_type': 0,
'table_charset': 8,
'tmp_key_length': 706}
# Skipping to key data at : 1000
# Reading key part 0.
# Reading key part 0.
# Index (key) Data from .frm file:
{'key_names': ['PRIMARY', 'id'],
'keys': [{'algorithm': 0,
'block_size': 0,
'comment': '',
'flags': 2,
'key_length': 30,
'key_parts': [{'field_num': 2,
'key_part_flag': 0,
'key_type': 0,
'length': 30,
'offset': 5}],
'num_parts': 1},
{'algorithm': 0,
'block_size': 0,
'comment': '',
'flags': 1,
'key_length': 4,
'key_parts': [{'field_num': 1,
'key_part_flag': 0,
'key_type': 6912,
'length': 4,
'offset': 1}],
'num_parts': 1}],
'num_key_parts': (2,),
'num_keys': 2}
# Skipping to default data at : 12c3
# Skipping to keys at : 12eb
# Engine string: InnoDB
# Partition string:
# Skipping to column data at : 2102
{'com_length': 0,
'int_length': 0,
'interval_count': 39,
'interval_parts': 17,
'n_length': 0,
'null_fields': 1,
'num_cols': 3,
'pos': 72,
'unknown': 52}
# Fields per screen = 3
# Reading column metadata #0
# Reading column metadata #1
# Reading column metadata #2
# Column comment: 0
# Column comment: 0
# Column comment: 0
# Column Data from .frm file:
[{'bytes_in_col': 11,
'charset': 8,
'charset_low': 0,
'comment': '',
'comment_length': 0,
'default': None,
'enums': [],
'field_length': 11,
'field_type': 3,
'field_type_name': 'int',
'flags': 27,
'flags_extra': 0,
'interval_nr': 0,
'name': 'id',
'recpos': 2,
'unireg': 0,
'unireg_type': 15},
{'bytes_in_col': 30,
'charset': 8,
'charset_low': 0,
'comment': '',
'comment_length': 0,
'default': None,
'enums': [],
'field_length': 30,
'field_type': 254,
'field_type_name': 'char',
'flags': 0,
'flags_extra': 0,
'interval_nr': 0,
'name': 'value',
'recpos': 6,
'unireg': 0,
'unireg_type': 0},
{'bytes_in_col': 11,
'charset': 8,
'charset_low': 0,
'comment': '',
'comment_length': 0,
'default': None,
'enums': [],
'field_length': 11,
'field_type': 3,
'field_type_name': 'int',
'flags': 27,
'flags_extra': 128,
'interval_nr': 0,
'name': 'count',
'recpos': 36,
'unireg': 0,
'unireg_type': 0}]
# Number of columns: 3
[{'bytes_in_col': 30,
'charset': 8,
'charset_low': 0,
'comment': '',
'comment_length': 0,
'default': None,
'enums': [],
'field_length': 30,
'field_type': 254,
'field_type_name': 'char',
'flags': 0,
'flags_extra': 0,
'interval_nr': 0,
'name': 'value',
'recpos': 6,
'unireg': 0,
'unireg_type': 0},
{'bytes_in_col': 11,
'charset': 8,
'charset_low': 0,
'comment': '',
'comment_length': 0,
'default': None,
'enums': [],
'field_length': 11,
'field_type': 3,
'field_type_name': 'int',
'flags': 27,
'flags_extra': 128,
'interval_nr': 0,
'name': 'count',
'recpos': 36,
'unireg': 0,
'unireg_type': 0}]
# Skipping to table comments at : 202e
# Comment:
# CREATE TABLE Statement:
CREATE TABLE `ttlsa_com`.`data` (
`id` int(11) NOT NULL AUTO_INCREMENT,
`value` char(30) NOT NULL,
`count` int(11) DEFAULT NULL,
PRIMARY KEY `PRIMARY` (`value`),
KEY `id` (`id`)
) ENGINE=InnoDB;
#...done.
权限
权限取决于如何使用mysqlfrm。统一用root账号就好了。文章源自运维生存时间-https://www.ttlsa.com/mysql/mysql-utilities-mysqlfrm/
如果要连接服务器，需要对mysql数据库读权限。文章源自运维生存时间-https://www.ttlsa.com/mysql/mysql-utilities-mysqlfrm/ 文章源自运维生存时间-https://www.ttlsa.com/mysql/mysql-utilities-mysqlfrm/
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