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mysql 获取今年第一天SELECT DATE_SUB(CURDATE(),INTERVAL dayofyear(now())-1 DAY)结果:mysql 获取去年第一天select DATE_SUB(DATE_SUB(CURDATE(),INTERVAL dayofyear(now())+1 DAY),INTERVAL dayofyear(DATE_SUB(C...

stop-hbase.shstopping hbase...................Slave2: no zookeeper to stop because no pid file /var/hadoop/pids/hbase-root-zookeeper.pidMaster: no zookeeper to stop because no pid file /var/had...

Ubunto18.04下安装mysqlapt-get install mysql-server mysql-client安装完mysql 直接敲命令mysql能到mysql命令行说明一件安装成功如果想更新数据库初始账号密码怎么办呢首先 打开debian.cnf文件，这个文件里面包含我们的默认账号密码和Host文件vim /etc/mysql/debian.cnf上面...