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mysql --help参数详解
mysql --help
mysql Ver 14.14 Distrib 5.6.31, for Linux (x86_64) using EditLine wrapper
Copyright (c) 2000, 2016, 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.
Usage: mysql [OPTIONS] [database]
-?, --help Display this help and exit.
-I, --help Synonym for -?
--auto-rehash Enable automatic rehashing. One doesn‘t need to use
‘rehash‘ to get table and field completion, but startup
and reconnecting may take a longer time. Disable with
--disable-auto-rehash.
(Defaults to on; use --skip-auto-rehash to disable.)
//自动补全功能。按tab键补全
-A, --no-auto-rehash
No automatic rehashing. One has to use ‘rehash‘ to get
table and field completion. This gives a quicker start of
mysql and disables rehashing on reconnect.
//默认没有自动补全功能，禁用自动补全功能
--auto-vertical-output
Automatically switch to vertical output mode if the
result is wider than the terminal width.
-B, --batch Don‘t use history file. Disable interactive behavior.
(Enables --silent.)
//不使用历史文件，禁止使用交互功能
--bind-address=name IP address to bind to.
--character-sets-dir=name
Directory for character set files.
//字符集的安装目录
--column-type-info Display column type information.
-c, --comments Preserve comments. Send comments to the server. The
default is --skip-comments (discard comments), enable
with --comments.
-C, --compress Use compression in server/client protocol.
//使用压缩功能
-#, --debug[=#] This is a non-debug version. Catch this and exit.
--debug-check Check memory and open file usage at exit.
-T, --debug-info Print some debug info at exit.
-D, --database=name Database to use. //使用哪个数据库
--default-character-set=name
Set the default character set.
// 设置数据库的默认字符集
--delimiter=name Delimiter to be used.//设置mysql命令结束符，默认是分号
--enable-cleartext-plugin
Enable/disable the clear text authentication plugin.
-e, --execute=name Execute command and quit. (Disables --force and history
file.) //不进入数据库中直接执行SQL语句
-E, --vertical Print the output of a query (rows) vertically.//垂直打印查询输出
-f, --force Continue even if we get an SQL error.//即使有错误依然执行下面的语句
-G, --named-commands
Enable named commands. Named commands mean this program‘s
internal commands; see mysql> help . When enabled, the
named commands can be used from any line of the query,
otherwise only from the first line, before an enter.
Disable with --disable-named-commands. This option is
disabled by default.
-i, --ignore-spaces Ignore space after function names. //函数名后面忽略空格
--init-command=name SQL Command to execute when connecting to MySQL server.
Will automatically be re-executed when reconnecting.
--local-infile Enable/disable LOAD DATA LOCAL INFILE.//是否启用LOAD DATA LOCAL INFILE
-b, --no-beep Turn off beep on error.//SQL执行错误时，禁止发出的“嘟”的一声
-h, --host=name Connect to host. //设置连接服务器的名称或IP地址
-H, --html Produce HTML output. //以HTML格式输出
-X, --xml Produce XML output.//以XML格式输出
--line-numbers Write line numbers for errors.//显示错误的行号，默认启用
(Defaults to on; use --skip-line-numbers to disable.)
-L, --skip-line-numbers
Don‘t write line number for errors.//不显示错误的行号
-n, --unbuffered Flush buffer after each query.//每执行一次SQL后刷新缓存
--column-names Write column names in results.//显示列信息
(Defaults to on; use --skip-column-names to disable.)
-N, --skip-column-names //不显示列信息，即列的名称
Don‘t write column names in results.
--sigint-ignore Ignore SIGINT (CTRL-C).//忽略SIGINT信息
-o, --one-database Ignore statements except those that occur while the
default database is the one named at the command line.
--pager[=name] Pager to use to display results. If you don‘t supply an
option, the default pager is taken from your ENV variable
PAGER. Valid pagers are less, more, cat [> filename],
etc. See interactive help (\h) also. This option does not
work in batch mode. Disable with --disable-pager. This
option is disabled by default.//使用分页器来显示查询输入，需要配合more、less命令
-p, --password[=name] //数据库密码
Password to use when connecting to server. If password is
not given it‘s asked from the tty.
-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).//数据库端口
--prompt=name Set the mysql prompt to this value.//设置mysql提示符
--protocol=name The protocol to use for connection (tcp, socket, pipe,
memory).//设置使用的协议
-q, --quick Don‘t cache result, print it row by row. This may slow
down the server if the output is suspended. Doesn‘t use
history file.
//不缓存查询的结果，顺序打印每一行。如果输出被挂起，服务器会慢下来，mysql不使用历史文件
-r, --raw Write fields without conversion. Used with --batch.
//写列的值不转义转换，和--batch一起使用
--reconnect Reconnect if the connection is lost. Disable with
--disable-reconnect. This option is enabled by default.
(Defaults to on; use --skip-reconnect to disable.)
//与服务器断开连接，则自动重新连接。默认是开启的
-s, --silent Be more silent. Print results with a tab as separator,
each row on new line.//打印结果使用tab符作为分隔符，一行一行输出
-S, --socket=name The socket file to use for connection.//指定socket文件
--ssl Enable SSL for connection (automatically enabled with
other flags).//打开ssl的支持
--ssl-ca=name CA file in PEM format (check OpenSSL docs, implies
--ssl).//CA证书
--ssl-capath=name CA directory (check OpenSSL docs, implies --ssl).//CA路径
--ssl-cert=name X509 cert in PEM format (implies --ssl).//x509证书
--ssl-cipher=name SSL cipher to use (implies --ssl).
--ssl-key=name X509 key in PEM format (implies --ssl).//x509密钥
--ssl-crl=name Certificate revocation list (implies --ssl).
--ssl-crlpath=name Certificate revocation list path (implies --ssl).
--ssl-verify-server-cert
Verify server‘s "Common Name" in its cert against
hostname used when connecting. This option is disabled by
default.//连接时审核服务器的证书
--ssl-mode=name SSL connection mode.
-t, --table Output in table format.//以表格形式输出
--tee=name Append everything into outfile. See interactive help (\h)
also. Does not work in batch mode. Disable with
--disable-tee. This option is disabled by default.
//输入拷贝添加到给定的文件中
-u, --user=name User for login if not current user.//指定用户名
-U, --safe-updates Only allow UPDATE and DELETE that uses keys.//只允许使用update和delete
-U, --i-am-a-dummy Synonym for option --safe-updates, -U.//和上面作用一样
-v, --verbose Write more. (-v -v -v gives the table output format).
-V, --version Output version information and exit.
-w, --wait Wait and retry if connection is down.
--connect-timeout=# Number of seconds before connection timeout.//连接超时时间
--max-allowed-packet=# //服务器接收或发送包的最大长度
The maximum packet length to send to or receive from
server.
--net-buffer-length=# //TCP/IP、套接字通信缓冲区大小
The buffer size for TCP/IP and socket communication.
--select-limit=# Automatic limit for SELECT when using --safe-updates.
--max-join-size=# Automatic limit for rows in a join when using
--safe-updates.
--secure-auth Refuse client connecting to server if it uses old
(pre-4.1.1) protocol.
(Defaults to on; use --skip-secure-auth to disable.)
--server-arg=name Send embedded server this as a parameter.
--show-warnings Show warnings after every statement.//显示警告信息
--plugin-dir=name Directory for client-side plugins.//指定插件目录
--default-auth=name Default authentication client-side plugin to use.
--histignore=name A colon-separated list of patterns to keep statements
from getting logged into mysql history.
--binary-mode By default, ASCII ‘\0‘ is disallowed and ‘\r\n‘ is
translated to ‘\n‘. This switch turns off both features,
and also turns off parsing of all clientcommands except
\C and DELIMITER, in non-interactive mode (for input
piped to mysql or loaded using the ‘source‘ command).
This is necessary when processing output from mysqlbinlog
that may contain blobs.
--connect-expired-password
Notify the server that this client is prepared to handle
expired password sandbox mode.
Default options are read from the following files in the given order:
/etc/my.cnf /etc/mysql/my.cnf /usr/local/mysql/etc/my.cnf ~/.my.cnf
The following groups are read: mysql client
The following options may be given as the first argument:
--print-defaults Print the program argument list and exit.
--no-defaults Don‘t read default options from any option file,
except for login file.
--defaults-file=# Only read default options from the given file #.
--defaults-extra-file=# Read this file after the global files are read.
--defaults-group-suffix=#
Also read groups with concat(group, suffix)
--login-path=# Read this path from the login file.
Variables (--variable-name=value)
and boolean options {FALSE|TRUE} Value (after reading options)
--------------------------------- ----------------------------------------
auto-rehash TRUE
auto-vertical-output FALSE
bind-address (No default value)
character-sets-dir (No default value)
column-type-info FALSE
comments FALSE
compress FALSE
debug-check FALSE
debug-info FALSE
database (No default value)
default-character-set auto
delimiter ;
enable-cleartext-plugin FALSE
vertical FALSE
force FALSE
named-commands FALSE
ignore-spaces FALSE
init-command (No default value)
local-infile FALSE
no-beep FALSE
host (No default value)
html FALSE
xml FALSE
line-numbers TRUE
unbuffered FALSE
column-names TRUE
sigint-ignore FALSE
port 0
prompt mysql>
quick FALSE
raw FALSE
reconnect TRUE
socket (No default value)
ssl FALSE
ssl-ca (No default value)
ssl-capath (No default value)
ssl-cert (No default value)
ssl-cipher (No default value)
ssl-key (No default value)
ssl-crl (No default value)
ssl-crlpath (No default value)
ssl-verify-server-cert FALSE
table FALSE
user (No default value)
safe-updates FALSE
i-am-a-dummy FALSE
connect-timeout 0
max-allowed-packet 16777216
net-buffer-length 16384
select-limit 1000
max-join-size 1000000
secure-auth TRUE
show-warnings FALSE
plugin-dir (No default value)
default-auth (No default value)
histignore (No default value)
binary-mode FALSE
connect-expired-password FALSE本文出自 “静心&清心” 博客，谢绝转载！
mysql --help参数详解
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