A look at database processing applications essay

Applicants to Design do not need to submit Essay D. Essay Topics Topic A The statement of purpose will provide an opportunity to explain any extenuating circumstances that you feel could add value to your application. You may also want to explain unique aspects of your academic background or valued experiences you may have had that relate to your academic discipline. The statement of purpose is not meant to be a listing of accomplishments in high school or a record of your participation in school-related activities.

A look at database processing applications essay

Other issues that you will face include: Performance issues are difficult to predict. When you are working with a shared database, such as the situation implied in Figure 3you may find that the performance characteristics of your database are hard to predict because each application accesses the database in its own unique way.

However, this same application also performs batch loads of items available for sale via other companies that you have partnered with, items that you want to carry on your web site as soon as they are available. These batch loads can take several minutes, during which period the Item table is under heavy load and thus your online application is potentially affected.

A look at database processing applications essay

Data integrity is difficult to ensure with shared databases. Because no single application has control over the data it is very difficult to be sure that all applications are operating under the same business principles. For example, your application may consider an order as fulfilled once it has been shipped and a payment has been received.

The original legacy application that is still in use by your customer support representatives to take orders over the phone may consider an order as fulfilled once it has been shipped, the payment received, and the payment deposited into your bank account.

A slight difference in the way that a fundamental business rule has been implemented may have serious business implications for any application that accesses the shared databases.

Less subtly, imagine what would happen if your online order taking application calculates the total for an order and stores it in the order table, whereas the legacy application calculates the subtotals only for order items but does not total the order.

When the order fulfillment application sees an order with no total it calculates the total, and appropriate taxes, whereas if a total already exists it uses the existing figure.

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If a customer makes an order online and then calls back a few hours later and has one of your customer service representatives modify their existing order, perhaps to add several items to it, the order total is no longer current because it has not been updated properly.

Referential integrity issues such as this are covered in detail in the Implementing Referential Integrity article. Operational databases require different design strategies than reporting databases. The schemas of operational databases reflect the operational needs of the applications that access them, often resulting in a reasonably normalized schema with some portions of it denormalized for performance reasons.

Reporting databaseson the other hand, are typically highly denormalized with significant data redundancy within them to support a wide range of reporting needs.

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Every technology has its strengths and weaknesses, and RDBMS technology is not an exception to this rule. Luckily there are ways that you can mitigate some of these challenges, and encapsulation is an important technique to do so.

Your Greatest Ally Encapsulation is a design issue that deals with how functionality is compartmentalized within a system. You should not have to know how something is implemented to be able to use it. The implication of encapsulation is that you can build anything anyway you want, and then you can later change the implementation and it will not affect other components within the system as long as the interface to that component did not change.

For example, consider your bank.Database locking is a varied, evolving, complicated, and technical topic. This paper sheds light on the nature of database locking and how it varies between different platforms.

It also discuss the types of application issues that can arise related as a result. It then looks at ways to ferret out these issues and to resolve them before they sneak out the door with your finished product.

File processing systems was an early attempt to computerize the manual filing system that we are all familiar with. A file system is a method for storing and organizing computer files and the data they contain to make it easy to find and access them.

Oracle Fusion Middleware. Oracle's complete family of application infrastructure products—from the #1 Java application server to SOA and enterprise portals—are integrated with Oracle Applications and technologies to speed implementation and lower the cost of management and change.

Please note: we will not begin processing applications until late September, so the earliest acknowledgements will be sent in mid-September. Application fee You may pay your application fee online with a credit card via the Common Application, Coalition Application, or the Universal College Application websites.

For example, a smart client running a word processing application can interface with a remote database over the Internet in order to collect data from the database to be used in the word processing . MmeEmil / Getty Images Human resources professionals and attorneys spend hours creating and revising application forms.

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