SQL to Select a random row from a database table
来源：
http://www.petefreitag.com/item/466.cfm
There are lots of ways to select a random record or row from a database table. Here are some example SQL statements that don't require additional application logic, but each database server requires differe ...
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Spring 配置数据源JNDI引用
<bean id="dataSource" class="org.springframework.jndi.JndiObjectFactoryBean">
<property name="jndiName"><value>java:comp/env/jdbc/aurora_contact_web</value></property>
</bean>
或者
<jee:jndi-lookup id="dataSource" jndi-name="java:comp/ ...
EJB所有返回值必须实现 Serializable接口，否则会报些莫名其妙的错误.
并把 Glassfish 的 appserv-rt.jar 和 javaee.jar 包 客户程序的类路径
@Stateless(mappedName="ejb/MainActionJNDI")//远程JNDI
@Name("MainAction")
@Interceptors({org.jboss.seam.ejb.SeamInterceptor.class})
@AutoCreate
public class MainActionBean implements MainAction,Main ...
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