MongoLink`
MongoLink`
MongoCollectionDistinct
MongoCollectionDistinct[MongoCollection[…],f]
コレクション内の field の別個の値のリストを取得する.
MongoCollectionDistinct[MongoCollection[…],field,query]
query に合致するドキュメントの field の別個の値のリストを取得する.
詳細とオプション
- MongoCollectionDistinctを使用するためには,まずNeeds["MongoLink`"]を使ってMongoLinkをロードする必要がある.
- MongoCollectionDistinctはListを返す.
- MongoCollectionDistinctはdb.collection.distinctに相当する.
例題
Wolfram Research (2018), MongoCollectionDistinct, Wolfram言語関数, https://reference.wolfram.com/language/MongoLink/ref/MongoCollectionDistinct.html.
テキスト
Wolfram Research (2018), MongoCollectionDistinct, Wolfram言語関数, https://reference.wolfram.com/language/MongoLink/ref/MongoCollectionDistinct.html.
CMS
Wolfram Language. 2018. "MongoCollectionDistinct." Wolfram Language & System Documentation Center. Wolfram Research. https://reference.wolfram.com/language/MongoLink/ref/MongoCollectionDistinct.html.
APA
Wolfram Language. (2018). MongoCollectionDistinct. Wolfram Language & System Documentation Center. Retrieved from https://reference.wolfram.com/language/MongoLink/ref/MongoCollectionDistinct.html