OS与Oracle

人，真有其两面性吧。 或许一个孩子，同时拥有成为画家和数学家的天赋，而最终的归宿，只在于环境对他的塑造罢了。 在放松的情形下，特容易天马行空地做些事情，想些事情，任由思想随着周围的变化而变化，也许，这也是一个人比较脆弱的时刻吧。 而当有明确的或紧急的任务时，会变得更坚强，更专注，更小心谨慎；会变得更加的冷静。   女生比较重于情感吧，男生比较重于逻辑吧，这就是所谓的天地之别。   为了更好地认识自己，做做思维倾向测评还是不错的，就是所谓的HBDI(Herrmann Brain Dominance Instrument)。 ( 大致而言,HBDI是一个大脑思维偏好的工具，通过120题的问卷，从身理学的角度来测试出你是什么“脑”的人。也就是你属于什么思维偏好的人，不同思维偏好的人会适合不同思维偏好的职业。 A脑的偏好：善于分析、爱作量化、逻辑思考………… B脑的偏好：善于计划、组织能力强…… C脑的偏好：感情丰富、善于表达…… D脑的偏好：善于推理、乐于冒险、爱打破规则…… )   认识自己，当然是为了改进自己，努力让自己成为全脑。 So， 好好地把握自己，没必要强制要求自己如何如何，相信自己，引领自己的生活吧。   一个孩子，为什么不可以同时成为数学家和画家呢？    

PL/SQL is a language which must be mastered if you want to master Oracle. A lot of work can be done through PL/SQL programming. Another tool of necessity is sqlplus scripts. Maybe I can say that it’s just like a shell in Linux, simple but powerful. PL/FLOW is an workflow engineer written in PL/SQL. Also [...]

what this sentence mean?   yep, it’s suitable for this situation below: You want to find what text files exist in a specific directory, which can have unlimited sub-ddirectories. and list them out.   This solution seems strange, I just use the parameter -I of grep to test whether a file is a text file [...]

So hard a topic, because now I am just familiar with TopLink.   First expression, Hibernate is simple, easy to start, but TopLink seems so sophisticated when trying to get started.   Configuration file: Hibernate use a .hbm xml file to describe a corresponding POJO. TopLink use project.xml, it contains the descriptors and mappings you [...]

I have found out that for my single instance configuration (no grid agents), the common cause of"Agent process exited abnormally during initialization" in system event log,"java.lang.Exception: Exception in sending Request :: null" in OEM Database Control Database Instance home page"status pending" in OEM Database Control Database Instance home page"Io exception: Unknown host specified" in OEM [...]