发明名称 METHOD AND SYSTEM FOR COMPOSING A QUERY FOR A DATABASE AND TRAVERSING THE DATABASE
摘要 A system and method of composing a query object for application against a database is provided. The method composes a selection clause for the query. Next, a criteria clause for the query is generated, with the criteria clause comprising input criteria relat ed to the query and additional criteria specified against the query and generated criteria based on a joint relationship. Next a source clause utilizing elements in the database accessed by the quer y is generated. A database traversal system and method is provided. The method identifies all tables directly accessible by each table and creating a data structure comprising an entry for each table. The entry comprises an identification field for each table and a link field identifying the all tables directly accessible by each table. The data structure is traversed and an optimum path of the traversal paths utilizing data obtained from traversing the data structure is identified.
申请公布号 CA2327167(A1) 申请公布日期 2002.05.30
申请号 CA20002327167 申请日期 2000.11.30
申请人 IBM CANADA LIMITED-IBM CANADA LIMITEE 发明人 CHAN, VICTOR;WANG, FEN;HUBBARD, MARK W.;CHIN, HOWARD CHUN
分类号 G06F17/30;(IPC1-7):G06F17/30 主分类号 G06F17/30
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