术语 | keyed direct access |
释义 | keyed direct access 关键字直接存取[访问] The retrieval or storage of a data record by use of either an index that relates the \\{record's\\} key to its relative location in the file, or data set, or a relative-record number, independent of the \\{record's\\} location relative to the previously retrieved or stored record. 一种利用索引或相对记录号来检索或存储数据的方法。索引把记录的关键字和记录在文 件或数据集中的位置联系起来,而相对记录号则与前面检索或存储过的记录位置无关。 |
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