在数据仓之间复制

现在你可以通过复制一个现有的数据仓来创建一个新的数据仓.

创建一个数据仓并填充它.

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original = CreateDatabin[<| "Interpretation" -> <|"name" -> "String", "email" -> "EmailAddress"|>|>]; DatabinUpload[original, {<|"name" -> "Jon Doe", "email" -> "jondoe@example.com"|>, <|"name" -> "Jane Doe", "email" -> "janedoe@example.com"|>, <|"name" -> "Bob Sanders", "email" -> "bob@example.com"|>, <|"name" -> "Bradley Ashford", "email" -> "brash@example.com"|>, <|"name" -> "Alexandra Bull", "email" -> "lexi@example.com"|>, <|"name" -> "Woody Codard", "email" -> "wood@example.com"|>}]

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通过复制原有的数据仓来创建一个新的数据仓.

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copy = CopyDatabin[original]

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添加数据到复制本.

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DatabinAdd[copy, <|"name" -> "Ralph Waldo", "email" -> "ralphw@example.com"|>] DatabinAdd[copy, <|"name" -> "George Bernard", "email" -> "georgeb@example.com"|>]

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现在新数据仓比原来的有更多的条目.

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{original["EntryCount"], copy["EntryCount"]}

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Complement[copy["Entries"], original["Entries"]]

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