pro's databases bigtable, simpledb


new propagandize datastore paradigms google bigtable jungle simpledb personally designed scalability, among things. basically, disallowing joins denormalization ways being accomplished.



in topic, however, settle seems joins infinite tables don't necessarilly have too costly denormalization "overrated" extent
why, then, aforementioned systems nullify joins force all together unparalleled list grasp scalability? perfect volumes information needs stored systems (many terabytes)?

do whole manners databases simply ask scales?
is since database forms tailored personally towards storing identical objects?

or am i blank bigger picture?



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