| 单词 | direct access method |
| 释义 | direct access methoddirect access methodA technique for finding data on a disk by deriving its storage address from an identifying key in the record, such as account number. Using a formula, the account number is converted into a sector address. This is faster than comparing entries in an index, but it only works well when keys are numerically close: 100, 101, 102, etc. See direct access.See DAM |
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