The Java Persistence API (JPA) is the Java standard for mapping Java objects to a relational database. Mapping Java objects to database tables and vice versa is called Object-relational mapping (ORM).

Vels University, Tamil Nadu is a Deemed university in Tamil Nadu. It is located in Velan Nagar, P.V. Vaithiyalingam Road, Pallavaram, Chennai - 600 117 Tamil Nadu, India. Given below are the ...

不论是使用哪种高级程序语言编写程序，变量都是其程序的基本组成单位。java中的基本数据类型的定义与c/c++中大体一致 ...