发明名称 |
Accommodation of data definition statements in the sharing of dynamic SQL statements |
摘要 |
A relational database management system which determines the shareable status of an executable object (section) in an cache. The shareable status is defined for a section in a cache by the system maintaining an identification list which has reference to database entities which are affected by a statement in the current unit of work. When a statement is compiled, the compiler generates a list of dependencies, which list is compared with the identification list. If the statement data dependencies are on the identification list, the statement will be treated as non-shareable until the completion of the current unit of work.
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申请公布号 |
US6615214(B1) |
申请公布日期 |
2003.09.02 |
申请号 |
US20000614358 |
申请日期 |
2000.07.12 |
申请人 |
INTERNATIONAL BUSINESS MACHINES CORPORATION |
发明人 |
BIRD PAUL M.;CHAN YUK-KUEN;SNOWBELL MICHAEL J. |
分类号 |
G06F9/45;G06F17/30;(IPC1-7):G06F17/00 |
主分类号 |
G06F9/45 |
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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