Wanted to know the different ways of exporting data out of Essbase & Planning Apps to load into other relational database systems.
For pure Essbase apps, report scripts is one option. Please add any other methods you have used.
By Planning app, I mean I need to export both Essbase numeric data as well as planning related data such as Supporting detail, Cell Texts, Textual information.
Well, LCM comes to mind as it does all of the above.
Star Analytics Server may do much of what you want (it certainly does Essbase data exports, I don't know about the rest).
You could write SQL extracts for much of the dimensionality -- I have blogged almost all of these. The OutlineLoad.cmd tool in 220.127.116.11.300 form will export just about everything (not so sure about cell text, SD, etc.), and now it will do that to SQL. John Goodwin wrote about this a few months ago on his blog.
If you are looking for a fast export of targetted BSO data, take a look at MDX. I recently wrote about an undocumented (for now) MDX keyword -- NONEMPTYBLOCKS -- that makes level zero suppress #Missing data extracts really, really, really fast:
P.S. I should note that MDX only writes to text files and it's kind of ugly when it does it. The speed of that command may override any sense of offended aesthetics.