Thread: Database vs. Serialization Question : Java

i want store time series data. time series accessed sequentially. plan load memory analysis in java. question is, better store series array , encode array blob , store blob db or should store data in non-rdbms? intuition tells me serializing array binary , storing binary blob database fastest / efficient approach since data accessed serially. each object storing simple, collection of 4 doubles.

also, can recommend pure java database use this? first attempt objectdb, slowed down crawl @ around 500 mbs in size. suspect storing each index of time series array separate entry in database. i'd simple 100% java implementation. i'm point of serializing data individual files, 1 per series.

from memory apache derby java db. small footprint, can embed.

http://db.apache.org/derby/

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