Method and apparatus for fast and comprehensive DBMS analysis
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United States of America Patent
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Jun 24, 2003
Issued Date -
N/A
app pub date -
Feb 2, 2000
filing date -
Aug 31, 1998
priority date (Note) -
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Abstract
A fast and comprehensive analysis of a database table is peformed by reading a header block describing the location of blocks storing data information of a database table. The data blocks of the database table are read using direct asynchronous IO into memory. Data read in from the data blocks is analyzed to determine information regarding the health or condition of the database table. The analysis is performed by spawning separate processes, each process being assigned an approximately equivalent number of data blocks to analyze. Once each process completes analysis of the assigned data blocks, the analysis by each thread is summarized and averaged to provide information to the DBA relating to the condition of the database table. The information gathered regarding the database table is more comprehensive than that provided by currently available database management systems and tools.
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