定義域 (データベース)
1. Data domainIn data management and database analysis, a data domain refers to all the unique values which a data element may contain. The rule for determining the domain boundary may be as simple as a data type with an enumerated list of values. For example, a database table that has information about people, with one record per person, might have a "gender" column.
Read “Data domain” on English Wikipedia
Read “定義域 (データベース)” on Japanese Wikipedia
Read “Data domain” on DBpedia
Read “Data domain” on English Wikipedia
Read “定義域 (データベース)” on Japanese Wikipedia
Read “Data domain” on DBpedia
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