ym563099457的博客

错误连接数据库 [oracle] : org.pentaho.di.core.exception.KettleDatabaseException: Error occurred while trying to connect to the databaseError connecting to database: (using class oracle.jdbc.driver.OracleD...

1.用top找到最耗资源的进程id[root@localhost bin]# toptop - 16:56:14 up 119 days, 6:17, 7 users, load average: 2.04, 2.07, 2.09Tasks: 256 total, 1 running, 254 sleeping, 0 stopped, 1 zombieCpu(s): 5.0%us, 0.3...

判断两个区间是否有交集如a-b c-d只要满足a<d && b>c