发明名称 |
Real-time database object statistics collection |
摘要 |
A system for collecting database object statistics by a database management system selects one or more objects and corresponding one or more object fields and then creates a base set of statistics for the selected object fields. The system further reads active log records and updates the base set of statistics when a change is read in the active log records. Finally, the system begins extracting log records when an end-of-file of the active log records is reached, and updates the updated statistics based on the extracted log records. |
申请公布号 |
US6389430(B1) |
申请公布日期 |
2002.05.14 |
申请号 |
US19990349197 |
申请日期 |
1999.07.07 |
申请人 |
COMPUTER ASSOCIATES THINK, INC. |
发明人 |
PARKER CHRISTOPHER F. |
分类号 |
G06F12/00;G06F11/34;G06F17/30;(IPC1-7):G06F17/30 |
主分类号 |
G06F12/00 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|