一、MySQL 连接本地数据库，用户名为“root”，密码“123”（注意：“-p”和“123” 之间不能有空格）
C:\>mysql -h localhost -u root -p123
二、MySQL 连接远程数据库（192.168.0.201），端口“3306”，用户名为“root”，密码“123”
C:\>mysql -h 172.16.16.45 -P 3306 -u root -p123
三、MySQL 连接本地数据库，用户名为“root”，隐藏密码
C:\>mysql -h localhost -u root -p Enter password:
四、MySQL 连接本地数据库，用户名为“root”，指定所连接的数据库为“test”
C:\>mysql -h localhost -u root -p123 -D test mysql>select database(); +------------+ | database() | +------------+ | test | +------------+
下面是 MySQL 客户端命令的详细参数：
mysql Ver 14.12 Distrib 5.0.41, for Win32 (ia32) Copyright (C) 2002 MySQL AB This software comes with ABSOLUTELY NO WARRANTY. This is free software, and you are welcome to modify and redistribute it under the GPL license 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. -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. WARNING: options deprecated; use --disable-auto-rehash instead. -B, --batch Don't use history file. Disable interactive behavior. (Enables --silent) --character-sets-dir=name Directory where character sets are. --default-character-set=name Set the default character set. -C, --compress Use compression in server/client protocol. -#, --debug[=#] This is a non-debug version. Catch this and exit -D, --database=name Database to use. --delimiter=name Delimiter to be used. -e, --execute=name Execute command and quit. (Disables --force and history file) -E, --vertical Print the output of a query (rows) vertically. -f, --force Continue even if we get an sql error. -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. -g, --no-named-commands Named commands are disabled. Use \* form only, or use named commands only in the beginning of a line ending with a semicolon (;) Since version 10.9 the client now starts with this option ENABLED by default! Disable with '-G'. Long format commands still work from the first line. WARNING: option deprecated; use --disable-named-commands instead. -i, --ignore-spaces Ignore space after function names. --local-infile Enable/disable LOAD DATA LOCAL INFILE. -b, --no-beep Turn off beep on error. -h, --host=name Connect to host. -H, --html Produce HTML output. -X, --xml Produce XML output --line-numbers Write line numbers for errors. -L, --skip-line-numbers Don't write line number for errors. WARNING: -L is deprecated, use long version of this option instead. -n, --unbuffered Flush buffer after each query. --column-names Write column names in results. -N, --skip-column-names Don't write column names in results. WARNING: -N is deprecated, use long version of this options instead. -O, --set-variable=name Change the value of a variable. Please note that this option is deprecated; you can set variables directly with --variable-name=value. --sigint-ignore Ignore SIGINT (CTRL-C) -o, --one-database Only update the default database. This is useful for skipping updates to other database in the update log. -p, --password[=name] Password to use when connecting to server. If password is not given it's asked from the tty. -W, --pipe Use named pipes to connect to server. -P, --port=# Port number to use for connection. --prompt=name Set the mysql prompt to this value. --protocol=name The protocol of connection (tcp,socket,pipe,memory). -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. -r, --raw Write fields without conversion. Used with --batch. --reconnect Reconnect if the connection is lost. Disable with --disable-reconnect. This option is enabled by default. -s, --silent Be more silent. Print results with a tab as separator, each row on new line. --shared-memory-base-name=name Base name of shared memory. -S, --socket=name Socket file to use for connection. --ssl Enable SSL for connection (automatically enabled with other flags). Disable with --skip-ssl. --ssl-ca=name CA file in PEM format (check OpenSSL docs, implies --ssl). --ssl-capath=name CA directory (check OpenSSL docs, implies --ssl). --ssl-cert=name X509 cert in PEM format (implies --ssl). --ssl-cipher=name SSL cipher to use (implies --ssl). --ssl-key=name X509 key in PEM format (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. -t, --table Output in table format. -T, --debug-info Print some debug info at exit. --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. --no-tee Disable outfile. See interactive help (\h) also. WARNING: option deprecated; use --disable-tee instead -u, --user=name User for login if not current user. -U, --safe-updates Only allow UPDATE and DELETE that uses keys. -U, --i-am-a-dummy Synonym for option --safe-updates, -U. -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. --max_allowed_packet=# Max packet length to send to, or receive from server --net_buffer_length=# Buffer 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 --show-warnings Show warnings after every statement. Default options are read from the following files in the given order: C:\my.ini C:\my.cnf C:\WINDOWS\my.ini C:\WINDOWS\my.cnf D:\MySQL\my.ini D:\MySQL\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 Do not read default options from any options file --defaults-file=# Only read default options from the given file # --defaults-extra-file=# Read this file after the global files are read Variables (--variable-name=value) and boolean options {FALSE|TRUE} Value (after reading options) --------------------------------- ----------------------------- auto-rehash TRUE character-sets-dir (No default value) default-character-set utf8 compress FALSE database (No default value) delimiter ; vertical FALSE force FALSE named-commands FALSE 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 3306 prompt mysql> quick FALSE raw FALSE reconnect TRUE shared-memory-base-name (No default value) 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-verify-server-cert FALSE table FALSE debug-info 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 FALSE show-warnings FALSE