Microsoft Word - article.doc Ìàòåìàòè÷åñêèå âîïðîñû êèáåðíåòèêè è âû÷èñëèòåëüíîé òåõíèêè 24, 2005, 147-157. 147 Некоторые методы сжатия данных и их индексов в СУБД Мигран С. Григорян Èíñòèòóò ïðîáëåì èíôîðìàòèêè è àâòîìàòèçàöèè ÍÀÍ ÐÀ e-mail mihran.grigoryan@buy.am Àííîòàöèÿ В данной статье рассматриваются некоторые методы сжатия табличных данных и индексных структур в СУБД. Приводятся сравнительные характеристики этих методов, и предлагаются их некоторые модификации. Литература [1] Ватолин Д., Ратушняк А., Смирнов М., Юкин В. Методы сжатия данных. Устройство архиваторов, сжатие изображений и видео. – М.: ДИАЛОГ-МИФИ, 2002. – 384 с. [2] Alsberg P. A. Space and Time Savings Through Large Data Base Compression and Dynamic Restructuring. Proc. IEEE 63(8):1114-1122, August 1975. [3] Buchsbaum A. L., Caldwell D. F., Church K. W., Fowler G. S., and Muthukrishnan S. Engineering the compression of massive tables: an experimental approach. Proc. 11th Annual ACM-SIAM Symposium on Discrete Algorithms, pp. 175-184, 2000. [4] Cannane A., Williams H. E., and Zobel J. A General-Purpose Compression Scheme for Databases. Proc. IEEE Data Compression Conference, p. 519, 1999. [5] Chan C.Y. and Ioannidis Y.E. An Efficient Bitmap Encoding Scheme for Selection Queries. Proc. ACM SIGMOD Intl' Conference, Philadelphia, Pennsylvania, June 1999, pp. 215-226. [6] Goldstein J. Improved query processing and data representation techniques. A dissertation submitted in partial fulfillment of the requirements for the degree of doctor of philosophy (computer sciences) at the University of Wisconsin – Madison. 1999. [7] Goldstein J., Ramakrishnan R., and Shaft U.. Compressing relations and indexes. Proc. IEEE Conf. on Data Engineering, Orlando, FL, USA, pp. 370-379, 1998. [8] Goyal K., Ramamritham K., Datta A., Thomas H. Indexing and Compression in Data Warehouses. Technical Report, Indian Institute of Technology, Bombay, April 1999. [9] Iyer B. R. and Wilhite D. Data Compression Support in Databases. In Proceedings of the 20th International Conference on Very Large Data Bases, Santiago, Chile, pp. 695-704. 1994. [10] Johnson T. Performance Measurements of Compressed Bitmap Indices. Proceedings of 25th International Conference on Very Large Data Bases, September 7-10, 1999 (VLDB'99), Edinburgh, Scotland, UK, pp. 278-289. [11] MySQL AB (2004). MySQL Reference Manual for version 4.0.18. [12] Stockinger K. Multi-Dimensional Bitmap Indices for Optimising Data Access within Object Oriented Databases at CERN. PhD. Nov. 2001. Некоторые методы сжатия данных и их индексов в СУБД 148 îÐÔÐ – áõÙ ïíÛ³ÉÝ»ñÇ ¨ Çݹ»ùëÝ»ñÇ ë»ËÙ³Ý ÙÇ ù³ÝÇ ³É·áñÇÃÙ Ø. ¶ñÇ·áñÛ³Ý ²Ù÷á÷áõÙ ²Ûë Ñá¹í³ÍáõÙ ¹Çï³ñÏíáõÙ »Ý ÙÇ ß³ñù ³ÕÛáõë³Ï³ÛÇÝ ïíÛ³ÉÝ»ñÇ ë»ÕÙ³Ý Ù»Ãá¹Ý»ñ: îñíáõÙ »Ý Ýñ³Ýó ѳٻٳï³Ï³Ý µÝáõó·ñ»ñÁ ¨ µ»ñíáõÙ »Ý ÙÇ ß³ñù ϳï³ñ»É³·áñÍáõÙÝ»ñ: