发明名称 |
Method and system for compressing a data stream in a database log so as to permit recovery of only selected portions of the data stream |
摘要 |
The invention relates to a system for maintaining a log of incoming records for a database system. Seek points are inserted into the compressed data log in a manner that allows recovery to start from a specified point without a need for decompressing earlier portions of the log. The initial block of data is used as the compression dictionary. A new compression sequence using the same initial compression dictionary is started at each seek point.
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申请公布号 |
US5956504(A) |
申请公布日期 |
1999.09.21 |
申请号 |
US19960607987 |
申请日期 |
1996.03.04 |
申请人 |
LUCENT TECHNOLOGIES INC. |
发明人 |
JAGADISH, HOSAGRAHAR VISVESVARAYA;KANNEGANTI, RAMARAO;SUDARSHAN, SUNDARARAJARAO |
分类号 |
G06F12/00;H03M7/30;(IPC1-7):G06F11/00;G06F15/00 |
主分类号 |
G06F12/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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