NDLI: Database partitioning techniques to support reload in a main memory database system: MARS

Content Provider	IEEE Xplore Digital Library
Author	Gruenwald, L. Eich, M.H.
Copyright Year	1990
Description	Author affiliation: Dept. of Comput. Sci. & Eng., Southern Methodist Univ., Dallas, TX, USA (Gruenwald, L.; Eich, M.H.)
Abstract	The authors examine the effect of different partitioning techniques on the MMDB (main memory database) reload problem in terms of the number of I/Os for reload and number of MM references during transaction processing. The best technique is the one that yields the minimum overall cost with regard to both properties. It is shown that horizontal and single vertical partitioning are actually the only possible candidates. Physical vertical never yields the best result. In some very rare cases, group vertical outperforms the other techniques. If the database system encountered performs more selections than projections and joins, and more tuple modifications or tuple deletions than tuple insertions, then horizontal is the best technique. Otherwise, single vertical is the chosen technique. It is also shown that, if reload is the only concern, that is, if the transaction performance is not taken into account, then single vertical is always the best choice.<>
Starting Page	107
Ending Page	109
File Size	273786
Page Count	3
File Format	PDF
ISBN	0818620358
DOI	10.1109/PARBSE.1990.77125
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	1990-03-07
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Degradation Computer science Mars Costs System performance Data engineering Database systems Computer crashes Transaction databases Performance analysis
Content Type	Text
Resource Type	Article

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