Transparent persistence in object-relational mapping

In object-relational mapping products, the ability to directly manipulate data stored in a relational database using an object programming language is called transparent persistence. This is in contrast to a database sub-language used by embedded SQL or a call interface used by ODBC or JDBC. See transparent persistence vs. JDBC call-level interface (new window).

Using an object-relational mapping product means you will have less code to write and, depending on how you use your data, you might have higher performance over an embedded SQL or a call interface. See caching for object-relational mapping (new window).

With transparent persistence, the manipulation and traversal of persistent objects is performed directly by the object programming language in the same manner as in-memory, non-persistent objects. This is achieved through the use of intelligent caching as this animation shows. For coding examples, see how to access data in a relational database. 

More on the general topic: Object-relational mapping (OR mapping) definition
	Transparent persistence vs. JDBC call-level interfaces
	How to access data in a relational database
	Navigation with object-relational mapping

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Transparent persistence in object-relational mapping Transparent persistence vs. JDBC call-level interfaces How to access data in a relational database Navigation with object-relational mapping

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