Imagine you need a report on the turnover of your customers, then the turnover by product, then another by period, ... the list could be continued at will.  The number of possibilities increases dramatically when you start combining the different aspects, for example, top 5…

If I understand your question correctly, then you are looking for a replacement for SAP and Oracle, since both are too expensive.  You can look at the issue of costs from different perspectives. The easiest way would be to look at the license costs, then the implementation…

In my opinion, Tableau is "best of bread" answering "one type of question" perfectly, while BO is a suite of tools answering "many types of questions" well. If you're looking for SQL based pixel perfect reports go for BO. If you're look for reports, dashboards, analysis in…