英语词汇“secondary key”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典

单词	secondary key
释义	secondary key secondary key [′sek·ən‚der·ē ′kē] (computer science) A key that holds the physical location of a record or a portion of a record in a file or database, and provides an alternative means of accessing data. Also known as alternate key. secondary key (database)A candidate key which is not selected as aprimary key.
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