If you are looking for a career opportinity at Oracle you will need to study before going to any interview. If you google Oracle interview questions you will get tons of results in the search engine results pages.
You might find some odd sites with lots of ads popping up. We have done the search (and research) and we finally got this ranking of the best sites to read the frequently asked questions in Oracle’s interviews:
- IT Toolbox Wiki: A lot of questions and answers, classified by category. Inludes interview questions about: PL/SQL, DBA, SQL/SQLPlus, tunning, installation/configuration, data modeler, UNIX and troubleshooting.
Source link: IT Toolbox Wiki - Orafaqs Wiki: This wiki have a lot of questions and answers. They are not grouped by categories but the site is very easy to read.
Source link: Orafaqs - Best Sample Quesions: This site has many questions as well. As this is a specialized site, you might find some samples about other kinds of interviews such as behavioral interview questions (initiative, ability to learn, analysis, decision making, teamwork, leadership, etc.)
Source link: Bestsamplequestions
In the past decade (2001-2010), 
We know that agile is rocking the development/ computer programming world for many years now. Agile programming techniques have become the order of the day. The benefits of Agile Programming are:
Toyota is a big name in Automobile Industry. Those who are involved in study and practice of business management might have heard about the Toyota Way. Toyota Way consists of best management principles. One of the well known principles is called kaizen or continuous improvement. Another lesser known principle of Toyota way goes like this: Use only reliable, thoroughly tested technology that serves your people and processes. Let us have a look at a recently implemented BI project at Toyota Motors. We shall get some valuable insights out of this exercise.
The recent economic slowdown has left many organizations with no other choice but to make every penny spent on IT count! More and more enterprises are turning towards cloud computing, though they know that, cloud computing is in the nascent stage. Cloud computing presents a fundamental, efficient cost effective computing deployment model. And this can go handy in managing tight economy.