If you have the need to call your SAP R/3 system from PHP (which we do), you have several possibilities to do so. One of them is using the proprietary RFC protocol. Fortunately, there exists a PHP SAPRFC library for this purpose. 

Because we want high…

If you are looking at your AWR report or browsing thru performance views in your Oracle Enterprise Manager console, chances are, that some of those SQLs, eating at your CPU or I/O bandwidth are marked as UNKNOWN. This is frustrating, to say the least, but in…

Indices (or indexes, if you will) are always good, right? Well, Tom Kyte would disagree with you and so would I. In fact, indices will always impede data manipulation performance, so they should be used only where they are useful in queries. But determining if an index is…