Java Persistence with JPA
WhenperformingdatabasetransactionsinJava,Javaobjectsaresavedintoadatabaseastablerows.Ontheotherhand,whenretrievingdatafromadatabase,tablerowsarereturnedandconvertedtoJavaobjects.TheJavaobjectsandtablerowsaretworepresentationsofthesamepieceofdata.However,therearemaindifferencesbe
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还好,感谢分享
很给力文档，该有的都有了