1、解壓
2、在目錄D:/Program Files/mysql-5.7.14-winx64下復制my-default.ini，放在與其相同目錄下，名稱顯示為my.ini；
3、編輯my.ini
# For advice on how to change settings please see# http://dev.mysql.com/doc/refman/5.7/en/server-configuration-defaults.html# *** DO NOT EDIT THIS FILE. It's a template which will be copied to the# *** default location during install, and will be replaced if you# *** upgrade to a newer version of MySQL.[client]default-character-set=utf8[mysqld]# Remove leading # and set to the amount of RAM for the most important data# cache in MySQL. Start at 70% of total RAM for dedicated server, else 10%.# innodb_buffer_pool_size = 128M# Remove leading # to turn on a very important data integrity option: logging# changes to the binary log between backups.# log_bin# These are commonly set, remove the # and set as required.basedir = D:/Program Files/mysql-5.7.14-winx64datadir = D:/Program Files/mysql-5.7.14-winx64/datatmpdir = D:/Program Files/mysql-5.7.14-winx64/datasocket = D:/Program Files/mysql-5.7.14-winx64/data/mysql.sockport = 3306# server_id = .....max_connections = 100table_open_cache = 256query_cache_size = 1Mtmp_table_size = 32Mthread_cache_size = 8innodb_data_home_dir = D:/Program Files/mysql-5.7.14-winx64/datainnodb_flush_log_at_trx_commit = 1innodb_log_buffer_size = 128Minnodb_buffer_pool_size = 128Minnodb_log_file_size = 10Minnodb_thread_concurrency = 16innodb-autoextend-increment = 1000# Remove leading # to set options mainly useful for reporting servers.# The server defaults are faster for transactions and fast SELECTs.# Adjust sizes as needed, experiment to find the optimal values.# join_buffer_size = 128M# sort_buffer_size = 2M# read_rnd_buffer_size = 2M join_buffer_size = 128Msort_buffer_size = 32Mread_rnd_buffer_size = 32Mmax_allowed_packet = 32Mexplicit_defaults_for_timestamp = truesql_mode=NO_ENGINE_SUBSTITUTION,STRICT_TRANS_TABLES
4、在解壓目錄D:/Program Files/mysql-5.7.14-winx64下新建data文件（不用在文件夾做其他操作）
5、以管理員身份進入cmd界面（必須是管理員）
6、切換至mysql解壓目錄/bin下，初始化data目錄
輸入命令：mysqld --initialize-insecure (生成無密碼的root用戶)
或：mysqld --initialize(生成帶隨機密碼的root用戶)
7、初始化完成后啟動mysql服務
輸入命令：net start mysql
8、開始使用mysql
輸入命令：mysql -u root -p
9、停止mysql服務
輸入命令：net stop mysql
10、忘記root密碼后如何登錄
101、 關閉正在運行的MySQL服務。
10.2、 打開DOS窗口，轉到mysql/bin目錄。
10.3、輸入mysqld --skip-grant-tables 回車。--skip-grant-tables 的意思是啟動MySQL服務的時候跳過權限表認證。
10.4、再開一個DOS窗口（因為剛才那個DOS窗口已經不能動了），轉到mysql/bin目錄。
10.5、輸入mysql回車，如果成功，將出現MySQL提示符 >。
10.6、連接權限數據庫： use mysql; 。
10.7、改密碼：update user set password=password("123") where user="root";（別忘了最后加分號） 。
10.8、刷新權限（必須步驟）：flush privileges; 。
10.9、 退出 quit。
10.10、注銷系統，再進入，使用用戶名root和剛才設置的新密碼123登錄。
11、修改root用戶密碼
5.7版本以前：
update user set authentication_string =password( 'root') where user = 'root;
5.7版本以后：
update user set password=password( 'root') where user = 'root;
以上所述是小編給大家介紹的mysql 5.7.14 免安裝版注意事項(精)，希望對大家有所幫助，如果大家有任何疑問請給我留言，小編會及時回復大家的。在此也非常感謝大家對VeVb武林網網站的支持！
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