Relational database

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…

Introduction The project YrPIM was briefly introduced with a basic reasoning of its creation. This probes into details of the idea behind the project which was to create a website that can be used by middle school students who are fall in the range of 11- 14 years of age. It is assumed that by this age a student has a basic understanding of how to operate a computer since the US consensus of 2014 states that approximately 83.8% of the houses have at least one computer. Of each of these houses…

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…

Step 9 monitors the database application systems and improves performance by making amendments to the design as appropriate. 16.2 What factors can be used to measure efficiency? There are a number of factors that we may use to measure efficiency: • Transaction throughput:…

1.0 QUESTION 1 Differentiate between database management system and information retrieval system by focusing on their functionalities. DATABASE MANAGEMENT SYSTEM INFORMATION RETRIEVAL SYSTEM DEFINITION A software system that enables the computer to do the database functions such as storing, retrieving, adding, deleting, and modifying data A built-in user interface that carry the activity of obtaining information resource from a collection of information stored EXAMPLE Microsoft Access, MySQL,…

ways to outperform legacy database systems. As the RAM capacities increase, the technique of storing partitions of data on the RAM of shared-nothing machines is more applicable than ever. NewSQL databases are designed by taking advantage of some modern techniques such as data sharding, data replication and distributed memory database and offer scalable and high performance solution to disk-based legacy database systems. NewSQL databases provide an object oriented database language that is…

operating system Apache as the server, MQSQL as the Database and PHP…

Chapter 3 The Relational Model Review Questions 3.1 Discuss each of the following concepts in the context of the relational data model: (a) Relation (b) Attribute (c) Domain (d) Tuple (e) Intension and Extension (f) Degree and Cardinality. Each term defined in Section 3.2.1. Domain – Set of atomic (indivisible) values. Attribute – it describes a component of the database, such as a table or a…

computing company, into a tech giant. Oracle’s Larry Ellison: A Profile of Power, Influence, and Dominance Oracle was founded as Software Development Laboratories, Inc. in 1977 by Ellison, Robert Miner and Edward Oates. The company name was changed to Relational Software, Inc. in 1979 and later in 1982 to Oracle,…