as described in the previous article, when submitting forms and JSP database queries using a servlet, it is always a cross-cutting process, either by manipulating the database through embedded Java code in the JSP, orThe form form is submitted by
Pat's doubts have recently focused on the data-access technologies provided by spring, and the different aspects of the spring-related projects I'm not too clear about:
Spring-dao (http://docs.spring.io/spring/docs/2.0.8/reference/dao.html)
Pat's doubtsThe recent focus on the data access technologies provided by spring is different for the spring-related projects I don't quite understand:
Spring-dao (http://docs.spring.io/spring/docs/2.0.8/reference/dao.html)
Spring-orm
The Data Access Object (DAO) provides a common API for accessing data stored in different database management systems (DBMS. Therefore, when replacing the underlying DBMS with another one, you do not need to modify the code that uses DAO to access
The Data Access Object (DAO) provides a common API for accessing data stored in different database management systems (DBMS. Therefore, when replacing the underlying DBMS with another one, you do not need to modify the code that uses DAO to access
DAO provides two different object models, an object model that accesses data through the jet engine, as shown in the following illustration. Another object model is to access data through ODBCDirect. Both of these object models are hierarchically
Objects | data
Original
Dao. Processor is the core class of data object and persistence of Java object in multi-database multi-entity environment, its consumer
The law concludes as follows:
One, with entity binding;
For Dao.entity objects, can
YII provides powerful database programming support. The Yii data Access Object (DAO) is built on the PHP data object (PDO) extension, making it possible to access different database management systems (DBMS) in a single unified interface.
I have recently worked and found some misunderstandings that I have known. I have been slowly improving my experience at work.
As the system grows bigger and bigger, in order to make the system level clear, we are used to hierarchical
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