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单词 key field
释义

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key field
key field n. Computing a field or set of fields in a database which constitutes a unique identifier for a record.
ΚΠ
1963 Adv. in Electronics & Electron Physics 18 53 The utility and cost of a content-addressed memory are greater if the key field can lie anywhere in each word.
1986 InfoWorld 6 Oct. 55/4 We encountered several difficulties trying to add a key field to a database containing data.
2007 N. Conner Quickbase iii. 103 Even if two Sara Smiths work for your company, each Sara has her own Employee ID number. So this number makes a good—and meaningful—key field.
extracted from keyn.1adj.
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