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HomeDatabaseMysql TutorialMySQLAdmin的用法_MySQL

 >mysqladmin -u root status>mysqladmin -help>mysqladmin -u root ping>mysqladmin -u root processlist>mysqladmin -u root refresh-------------------------------------------------------mysqladmin 适合于linux和windows系统linux下:mysqladmin -u[username] -p[password] status 

windows下:先在安装目录找到mysqladmin.exe,然后在dos界面下change到这个目录,执行 
mysqladmin -u[username] -p[password] extended-status 

这里的extended-status 和status只是mysqladmin的两个参数而已!MySQLAdmin用法
用于执行管理性操作。语法是:
shell> mysqladmin [OPTIONS] command [command-option] command ...
通过执行mysqladmin --help,你可以得到你mysqladmin的版本所支持的一个选项列表。
目前mysqladmin支持下列命令:
create databasename             创建一个新数据库
drop databasename               删除一个数据库及其所有表
extended-status                 给出服务器的一个扩展状态消息
flush-hosts                     洗掉所有缓存的主机
flush-logs                      洗掉所有日志 
flush-tables                    洗掉所有表 
flush-privileges                再次装载授权表(同reload) 
kill id,id,...                  杀死mysql线程 
password                        新口令,将老口令改为新口令
ping                            检查mysqld是否活着 
processlist                     显示服务其中活跃线程列表
reload                          重载授权表 
refresh                         洗掉所有表并关闭和打开日志文件
shutdown                        关掉服务器 
status                          给出服务器的简短状态消息
variables                       打印出可用变量
version                         得到服务器的版本信息
所有命令可以被缩短为其唯一的前缀。例如:
shell> mysqladmin proc stat
+----+-------+-----------+----+-------------+------+-------+------+
| Id | User  | Host      | db | Command     | Time | State | Info |
+----+-------+-----------+----+-------------+------+-------+------+
| 6  | monty | localhost |    | Processlist | 0    |       |      |
+----+-------+-----------+----+-------------+------+-------+------+
Uptime: 10077  Threads: 1  Questions: 9  Slow queries: 0  Opens: 6  Flush tables: 1 
Open tables: 2  Memory in use: 1092K  Max memory used: 1116K
mysqladmin status命令结果有下述列:
Uptime                   MySQL服务器已经运行的秒数
Threads                  活跃线程(客户)的数量 
Questions                从mysqld启动起来自客户问题的数量 
Slow queries             已经超过long_query_time秒的查询数量 
Opens                    mysqld已经打开了多少表 
Flush tables             flush ..., refresh和reload命令数量 
Open tables              现在被打开的表数量
Memory in use            由mysqld代码直接分配的内存(只有在MySQL用--with-debug编译时可用) 
Max memory used          由mysqld代码直接分配的最大内存(只有在MySQL用--with-debug编译时可用) 

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