| 单词 | primary key |
| 释义 | > as lemmasprimary key 9. Computing. Short for key field n. at Compounds 3. More fully primary key. ΚΠ 1963 Adv. in Electronics & Electron Physics 18 53 Beyond the equipment required for the comparisons, a content-addressed memory has extra equipment in the capacity required for storing the keys. 1988 PC Mag. 17 May 218/3 Numeric fields can be concatenated with alphanumeric fields to create a unique key for the file. 1990 E. Horowitz & S. Sahni Fund. Data Structures in Pascal (ed. 3) xi. 646 The physical sequence of records is ordered on some key, called the primary key. 2010 N. Conner & M. MacDonald Office 2010 xxvi. 741 If your database doesn't have an ID field..it's up to you to create one and set the primary key. < as lemmas |
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