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Normalization is a design technique that is mostly used as a guide in designing relational databases. Normalization is necessary a two step process that gives data into tabular form by removing repeating groups and then replaces duplicated data from the relational tables.
Redundant data wastes disk space and builds maintenance problems. If data that allows in more than one place must be modified, the data must be modified in exactly the same way in all locations which is prone to errors and time consuming. A modification to a customer address is much simpler to do if that data is stored only in the Customers table and now in the database.
Inconsistent dependency is a database structure that makes certain assumptions about the location of data. As, while it is intuitive for a user to look in the Customers table for the address of a particular client, it may not create sense to look there for the salary of the employee who invokes on that customer. The employee's salary is exist to, or dependent on, the employee and thus could be placed to the Employees table. Inconsistent dependencies can create data difficult to access because the path to find the data cannot be logical, or may be broken or missing.
The significant methods of ActionForm are: validate () & reset ().
Please submit your answers In this homework, we are going to generate Java Virtual Machine codes by processing the abstract syntax tree constructed from the parsing process
Two XML configuration files are uses by The Validator Framework validator-rules.xml and validation.xml. The validator-rules.xml shows the standard validation routines, these are re
Why do we need wrapper classes? It is sometimes simpler to deal with primitives as objects. Moreover most of the collection classes keep objects and not primitive data types. A
Talent agencies like ICM, CAA and Paradigm represent writers, directors and actors (among other talent). These agencies take in hundreds of millions of dollars a year collecting 1
How are this () and super() used with constructors? this() Constructors: is used to pointing current class instance. Can be used with methods or variables. Used to call
Loosely coupled SOA SOA gives in loosely coupled application elements, in which message is not necessarily tied to a particular database. Loose coupling actives enterprises to
A Java package is a naming context for classes and interfaces. A package is used to make a separate name space for groups of classes and interfaces. Packages are also used to arran
Describe the decomposition principle?
A point-to-point model is based on the concept of a message queue: Senders send messages into the queue, and the receiver reads messages from this queue. In the point-to-point mode
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