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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.
1. Write the pseudocode to get the input of 10 integers from the user and add them up and output the total. (4 points) 2. Compute the output of following pseudocode. Assume that
Spring configuration file is an XML file. This file having the classes information and defines how these classes are configured and introduced to each other.
try { pa="weblog"; pas="weblog"; Connection c; Statement st;
Benefits of Spring framework : Spring can effectively organize your middle tier objects as given in the diagram above, whether or not you select to use EJB. Applications create
Write code in JavaScript to display the odd numbers among 20 to 100 using FOR statement? Note: No required to write whole HTML program. Just JavaScript code of require elemen
Synchronous messaging involves a client that waits for the server to respond to a message. So if one end is down the whole communication will fail.
O/R mapping is well suited for read, change, write centric applications and not suited for write centric applications where data is seldom read. Although this was usually true of m
Explain what occur when an object is created in Java?
Write a program that uses one of the Map classes to implement a contact list. Contact information should include first name, last name, a phone number and an email address. The lis
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