In this report I will discuss briefly how transaction management can be used within the database I will also discuss how concurrency and recovery can be used within databases I intend to use the database platforms provided by Microsoft and Oracle.
Transaction Management
As applications develop the capability enhances and they can undertake more complex operations, enabling employees to keep an eye on business transactions in real time is becoming more and more important. For transaction management to occur properly IT organisations need to address a number of challenges some of these challenges may be:
1. Transaction status checking and health checks for the transaction.
2. Business figures that analyse the well-being of the company, these
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For more than three and a half decades, Oracle has been the leader in database software. And as it has further developed technologies and acquired best-in-class companies over the years, that leadership has expanded to into all sectors of the technology industry he started off with hardware stacks and other pieces of hardware, the company then evolved into middleware and software applications for databases and other programs and now it is starting to majorly expand within the cloud. Oracle are now advancing their technologies within the cloud.
Throughout its history Oracle has proved it can build for the future on the foundation of its innovations and its knowledge of customer challenges and successes analysed by the best technical and business minds in the world.
Microsoft SQL databases- a brief description
Microsoft’s offering in the database field is SQL however over the last number of years it has amalgamated its services with Windows Azure. Windows Azure is an open and flexible cloud platform that enables you to quickly build, deploy and manage applications across a global network of Microsoft-managed datacenters. You can build applications using any language, tool or framework. You can integrate your public cloud applications with your existing IT
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These are as follows:
1. Pessimistic locking: this control strategy must be kept locked the entire time it in the database memory. One of the main drawbacks is that it limits or prevents people from changing the data entity that is locked.
Pessimistic locking tries to guarantee the safety of database changes however this is not always made possible by the increased number of users and interactions with the database therefore slowing the operation down considerably within the database.
2. Optimistic locking: optimistic locking does not try to prevent collisions from happening however it aims to detect when they are going to happen and then it tries to counteract and resolve any issues that may occur which means that these instances can be avoided.
Optimistic locking on the other hand can take the sting out of the problem of waiting for the locks to release however this will increase the possibility and potential of accidents and collisions occurring when attempting to update the
In 1994, Jim Donehey was brought in to update Capital One’s IT system. His solution was to replace their aging mainframe computers with an object-based system, but this technology had never been used on such a large scale. In contrast, two-thirds of Capital One’s competitors outsourced their IT functions. Within 5 years the company had the world’s largest Oracle database with 23 terabytes of data – winning them the Gartner Group’s Excellence in Technology Award.
Every piece of information must be traceable back to the data input that produced it. The main action of audit trail is captures a sources of all data items at the time of getting entrance into the system. The other constituent of input control and security involves data security rules and measures to protect data from being or lost or damaged. The records retention policy is the practice of storing documents in a safe location and making sure to see to legal requirements or business needs. Input security and control also involves the process of encrypting or encryption of data so only users with the code it software can read
Oracle ThinkQuest. Oracle Education Foundation, 04 Jun 2010. Web.
The aim of this iteration is to improve me knowledge in JDBC which is essential to work with real time applications. JDBC is the API used to interact with relational databases. JDBC API is available in the form of java.sql and javax.sql packages. The former is known as core package while the latter is known as extension package. The JDBC material collected in the first iteration is used in this iteration. The topics to be learnt in this iteration include database concepts, creating a database, SQL, JDBC API such as Connection interface, DriverManager class, Statement interface, PreparedStatement interface and ResultSet interface. These topics are required to build applications that can connect and interact with relational databases. More applications in the real world need the knowledge of JDBC. The time allotted to learn this subject is 10 working days. This is for two weeks. I spend around 9 hour’s time on each day from Monday to Friday.
Enterprise systems implementation projects are considered high risk. Tektronix had never progressed beyond the requirements analysis stage in five prior attempts to replace its order management system, so it would seem that its Oracle enterprise system implementation project was astronomically high risk. Tektronix used a number of methods to mitigate and manage the implementation risks. Clearly and thoroughly describe the major risks and critique the company’s methods for mitigating and managing the risks. Your critiques should include strengths and weaknesses of the company’s approach
Information on vendors can be updated at any time in the future. The user may record purchase orders, bills, and payments made. Both the revenue and expenditure cycle components keep track of what is happening to inventory. Example:. If a user wants to pay for a product for which his or her company has already been invoiced and which the company has received, the user needs only enter the vendor and the invoice being paid.
A: The “A” in ACID database properties represents Atomicity. Atomicity is described easily using “all or nothing” i.e, if we consider that the database processes the transactions either it should be fully completed or not at all done. If a single task in a transaction fails then the whole transaction fails.
System performance is one of the most critical issues faced by companies dealing with vast amounts of data. Companies use database systems and their applications to store, retrieve and handle this data.
[7] Elmasri & Navathe. Fundamentals of database systems, 4th edition. Addison-Wesley, Redwood City, CA. 2004.
Oracle developed a suite named Flashback Technology which enables Oracle application users and database administrators to wind the clock back and examine their database objects and data in a previous state without having to restore using backup media.
Some faculties and departments are already using Oracle applications in their day-to-day operations. As time goes by, more and more information users will be working with an application based on Oracle database technology. If you get the opportunity to be a member of an application development team, you will become familiar with the workings of Oracle and relational databases. Other users may have to learn about this popular database management system through their own experience. This article is for our readers who, as of yet, have no access to Oracle databases but have a yearning for learning what they're all about.
This makes the challenge more difficult. As in the example above, you may need to change your strategies from time to time, as the person changes. You would not keep plastic locks on, if the patient was trying to remove them with sticks or tools. 2. Lock up Keys and Tools.
Intended output of this action research is to be able to generate effective administration of SQL database which will be as a part of work flow at Vision Square
PL/SQL allows sending an entire block of statements to the database at one time. This reduces network traffic and provides high performance for the applications.
In our world, people rely heavily on the power of technology every day. Kids are learning how to operate an iPad before they can even say their first word. School assignments have become virtual, making it possible to do anywhere in the world. We can receive information from across the world in less than a second with the touch of a button. Technology is a big part of our lives, and without it life just becomes a lot harder. Just like our phones have such an importance to us in our daily lives, database management systems are the same for businesses. Without this important software, it would be almost impossible for companies to complete simple daily tasks with such ease.