发明名称 |
Class hierarchy for object aggregation representation of relational database rows with cells having nontraditional datatypes |
摘要 |
A program product is described in which a particularly advantageous hierarchical class library is provided to permit object oriented applications to instantiate objects to access and to manipulate, in accordance with the object model, nontraditional data values of a relational table. Nontraditional datatypes of a relational table include multimedia and large object datatypes. The data is manipulable by virtue of extended data objects that each represent a cell of a relational row, and that each inherit type-specific behaviors from the class library. The class library is advantageously structured into a hierarchy that ensures the availability of certain member functions for extended data objects.
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申请公布号 |
US5960438(A) |
申请公布日期 |
1999.09.28 |
申请号 |
US19970852062 |
申请日期 |
1997.05.06 |
申请人 |
INTERNATIONAL BUSINESS MACHINES CORP. |
发明人 |
CHANG, DANIEL T.;HEMBRY, DOUGLAS M.;SOETARMAN, BASUKI N.;SUMMERS, ROBERT N. |
分类号 |
G06F17/30;(IPC1-7):G06F17/30 |
主分类号 |
G06F17/30 |
代理机构 |
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