Discuss the tiered system and how it relates to a relational database management system rdms and a java application. how does a java application interface and connect to a rdms

Tiered System is a Layered system where each layer represents a specific functionality

Explanation:

In general each software application is layered as 3 tier systems where each tier/layer represents a specific functionality.The three layers is software architecture is Presentation Layer, Business Layer and Data Layer.

Presentation Layer: It represents the UI. design of the screens and all

Business Layer: It actually represents your Domain logic

Data Layer : it is data store for your application.

Java Application connects to a RDMS using data layer. In java application presentation layer represents HTML and CSS forms . Business layer contains java coding which represents your domain logic. Data Layer is used to connect to RDMS from a java application

the today function returns a valid value without any arguments.

the today function returns the current date based on the computer's date setting and formatted as a date. today takes no parameters, but requires that you use empty parentheses