Oracle Database

D1 - Discuss how potential errors in the design and construction of a database can be avoided. Accidental deletion of fields When a database is being used you might find it easy to accidently delete data which could mean a lot of stress if it is something which is very valuable. One main way to avoid this would be to make sure that back-ups are made of the data, so whatever the matter the data will not be completely lost. Back-ups can be stored on anything like a memory stick or an external…

Nelson Mandela once said, “Education is the most powerful weapon which you can use to change the world.” However, in Woody Allen’s, “The Rejection,” the writer satirizes the ideals of the education system that acknowledges only the intelligent students. This is seen in the character of Boris through his exaggerated reaction towards the failure of his son. During the time of Woody Allen, he believed that education was only for the smart and intelligent people. Woody Allen satirizes the education…

Concurrency loss due to IO path critical sections (IPCS) Time lost in waiting queue (WT) to enter a critical section affects an application concurrency (AC), and impedes the application performance from scaling (AC ∝ 1 / WT) if a workload is bursty and highly parallelized. It is apparent that the wait time to enter a critical section is a function of the CS’s size (CSS) and the number of waiting threads (NWT) i.e. WT ∝ CSS * NWT. Furthermore, the work done (IO completed) is proportional to the…

We’ve used a lot of devices and storages so far in our life, but one thing that might be weird to people is the RAID. RAID stand for redundant array of independent disks and is a place for people to store their information. It is stored on CDs, instead of the normal flash drives and hard drives. RAIDS are different from the normal CDs, because they have to divide the data and spread the blocks into several megabytes for RAID to work. This is to make RAID efficient and fast. There are lots of…

software in the market to use. A person who is related with Relational Databases must consider the advantages and disadvantages of them and try to get the most efficient one. Many reasons to handle data is to keep information of something important which may improve a work that you are involve. In the following paragraphs, I will talk about general information of RDBMS and I will discuss and evaluate alternatives Relational Database Management Systems and the advantages and disadvantages that…

from 1 to 0. Explanation on how this is done is dealt in the later chapters. A backup reset can be generated when VDD or VBAT power on, if both supplies had been previously turned off. It can also be done in a software way when RCC_BDCR bit is triggered. BDCR means backup domain control register. For this task there is also a function written namely, RCC_BackupResetCmd(). Now I would explain more about accessing the backup domain. After a reset these registers are protected against write access…

and organisations, Databases are used to store all the core activities/information and often when there a major changes or restructure of the business the first process of many businesses is to change their databases to realign with their goal which makes them a valuable asset to any organisation. (Margulies, Pfleeger, Pfleeger 2015). Databases stores and maintain data at one central location so users can easily access it whenever needed. Through the use of Queries, databases have the ability…

American College of Commerce and Technology The Role of Database Administrator Submitted by: SRIKANTH JAMPALLY ------------------------------ Directed by: Professor Jamal Nouh (Ph.D.) Department of Computer and Information Sciences In partial Fulfillment of the CIS-510 Database Design and Analysis ---------------------------------- Spring, 2016 Table of Contents Abstract 3 Introduction 4 How to become a DBA? 5 DBA skills requried 6 DBA responsibilities 8 Conclusion 11…

(Connolly, 2003) the database is “A shared collection of logically related data, and a description of this data, designed to meet the information needs of an organization”. The Database Management System (DBMS) is software that enables users to define, create, maintain and control access to the database. The database has identified three levels of abstraction. All these three levels will have different aspects and they are as follows: • Physical or external level- The database system can show…

A database object in a relational database is a data structure used to either store or reference data. The most common object that people interact with is the table. Other objects are indexes, stored procedures, sequences, views and many more. When a database object is created, a new object type cannot be created because all the various object types created are restricted by the very nature, or source code, of the relational database model being used, such as Oracle, SQL Server or Access. What…