1.A version of the data, save only 2, save 2 and multiple versions, but the query query only version of the latest data The programming language is Java, should use the class, can only get the latest version of the data.
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1.A version of the data, save only 2, save 2 and multiple versions, but the query query only version of the latest data The programming language is Java, should use the class, can only get the latest version of the data.
[email protected]