> Interesting, but it doesn't have any adhoc query capability: Take in consideration, that this is not the whole truth - simply selecting and getting what the HDF5 authors call a 'hyperslab' is a great feature and an example for a simple query task. This special task alone might become an essential part of your problem.
> It really depends on your application. HDF5 is tuned to do > efficient I/O and storage for "big" data (hundreds of megabytes and > more). > HDF5 was designed to complement DBs and not to compete with them. " The answer to the seemingly basic question, whether getting the result of a query like the mentioned *in time* or not, can knock out the usefulness of a database as a whole without having alternatives. So at times, they compete - and at other times they complement each other. Micha --
