默认情况下,MySQL的核心配置文件在C:\ProgramData\MySQL\MySQL Server 5.7\my.ini(我们也可以将其复制到上面说的那几个目录) 需要注意的是,默认情况下MySQL会在提供一个文件:C:\Program Files\MySQL\MySQL Server 5.7\my-default.ini,MySQL并不会加载这个文件,这个文件只是MySQL提供给我们复制用的配置文件; Tips:...
C:\Users\Administrator>mysql -h localhost -u wxc971231 -p Enter password: *** Welcome to the MySQL monitor. Commands end with ; or \g. Your MySQL connection id is 4 Server version: 5.5.15 MySQL Community Server (GPL) Copyright (c) 2000, 2010, Oracle and/or its affiliates. All righ...
mysql>FLUSHPRIVILEGES; Query OK,0rows affected (0.00sec) mysql>exitBye[root@localhost ~]# mysql-uz1-p#System20 mysql:[Warning]Using a passwordonthe command line interface can be insecure. Welcometothe MySQL monitor. Commandsendwith;or\g. Your MySQL connection idis11Server version:5.7.17MySQL...
mysql>revoke insert on plf.* from'plf'@'%';Query OK, 0 rows affected (0.00 sec)mysql>quitBye [root@mysql ~]# mysql -uplf -p123456 -h 192.168.3.100 Warning: Using a password on the command line interface can be insecure. Welcome to the MySQL monitor. Commands end with ; or \g. ...
select*from mysql.user; 查看当前登录的用户: 代码语言:javascript 代码运行次数:0 运行 AI代码解释 selectuser(); 4.1.2 创建用户 语法: 代码语言:javascript 代码运行次数:0 运行 AI代码解释 CREATEUSER'用户名'@'主机名'IDENTIFIEDBY'密码'; 语法说明: ...
select * from mysql.user; 查看当前登录的用户: select user(); 4.1.2 创建用户 语法: CREATE USER '用户名'@'主机名' IDENTIFIED BY '密码'; 语法说明: Tips:用户名、主机名和密码都应该加上单引号 【案例1】: 创建zhangsan用户,只能在localhost这个服务器登录mysql服务器,密码为123456 ...
使用新密码登录 [root@server01 ~]# mysql -uuser1 -p'321@abcABC' mysql: [Warning] Using a password on the command line interface can be insecure. Welcome to the MySQL monitor. Commands end with ; or \g. Your MySQL connection id is 13 Server version: 5.7.17-log MySQL Community Server...
SQL DDL, DML, DCL Commands sqldmlddldcl UpdatedAug 23, 2022 TSQL Load more… Add a description, image, and links to thedcltopic page so that developers can more easily learn about it. To associate your repository with thedcltopic, visit your repo's landing page and select "manage topics...
select是用来挑选字段的,而where是用来挑选行的;mysql关系型数据库为一个行级数据库,所有数据先取行,然后对行过滤之后保留关键字段, ★单表查询: ☉SELECT ☉语句用法: ◆SELECT * FROM tbl_name; 查询一个指定表的所有行(生产环境中一定不可用);
Key DML Commands: INSERT:Used to add new rows or records into a table. INSERT INTO Employees (FirstName, LastName, Department) VALUES ('John', 'Doe', 'HR'); UPDATE:Used to change existing records in a table. UPDATE Employees SET Salary = Salary * 1.1 WHERE Department = ‘Engineering’...