DB2 V9.1 中提出了全新的行深度压缩(deep compression)的技术,以应对这种挑战。尽管深度压缩的主要目的是节省存储空间,但是使用它也可以大大节省磁盘 I/O 并提高缓冲池命中率。
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In DB2 9.7, row compression, also referred to as deep compression, compresses data rows by replacing patterns of values that repeat across rows with shorter symbol strings.
在DB 2 9.7中,行压缩(也称为深度压缩)通过把跨行重复出现的值模式替换为更短的符号字符串来压缩数据行。
UWE includes support for unlimited data storage, processors, and memory, as well as deep compression that can reduce disk space usage as much as 80 percent while further enhancing performance.
UWE提供了对无限制数据存储、处理器、内存以及深度压缩的支持,可减少80%的磁盘空间使用量,同时进一步提高性能。
In addition, Deep Compression was used to compress both table and index data.
此外,Deep Compression则被用于压缩表和索引数据。
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