Database Models and Legacy Systems The evolution of the information age demanded robust management systems for storing large volume of data‚ efficiency in retrieval‚ and enhanced data security and sharing; hence‚ the development of databases from flat file systems. Despite this advancement in technology‚ many organizations such as Colorado Financial Reporting System (COFRS) continue to use legacy database systems. Colorado Financial Reporting System (COFRS) The Colorado Financial Reporting
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A. Database concepts 1 Basic SQL Command: SQL commands which are worth knowing : TRIM (for stripping spaces) LEFT (for fetching the data from left side of string) RIGHT (for fetching the data from right side of string) REPLACE (for replacement in string) CONVERT (for converting data from one type to another) LEN (for fetching length of string) STUFF (way to insert one string into another) DIFFERENCE (diff between two strings return 4 represents no diff or strong similarity)
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Relational Database Management System Oracle provides a flexible RDBMS called Oracle7. Using its features‚ you can store and manage data with all the advantages of a relational structure plus PL/SQL‚ an engine that provides you with the ability to store and execute program units. The server offers the options of retrieving data based on optimization techniques. It includes security features that control how a database is accessed and used. Other features include consistency and protection of data
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Overview of Database Concepts TRUE/FALSE 1. A database is a physical storage device for data. ANS: F PTS: 1 REF: 2 2. A field is a basic unit of data also referred to as a record. ANS: F PTS: 1 REF: 3 3. A character is a basic unit of data and can consist of a number‚ letter‚ or special symbol. ANS: T PTS: 1 REF: 3 4. A collection of fields is a file. ANS: F PTS: 1 REF: 3 5. A collection of records is a file. ANS: T PTS: 1 REF: 3 6. A field in the logical design of a database corresponds
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Introduction Huffman Trucking is in need of a system to help maintain its large trucking fleet’s maintenance‚ purchases‚ and vehicles. What is being purposed is a relational database that will greatly improve the record keeping for its fleet. This system will allow for reports to be generated to ensure that all vehicles have been properly maintained and record the daily operations of the maintenance department. The types of reports that can be generated are: * Parts Inventory Purchase
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System The human immune system is a collective network of tissues‚ glands‚ and organs that work in a coordinated effort with each other to guard our bodies from foreign antigens such as viruses‚ bacteria‚ and infection causing microorganisms. For the immune system to work properly‚ two things must happen: first‚ the body must recognize that it has been invaded‚ either by pathogens or toxins or by some other threat. Second‚ the immune response must be activated quickly‚ before the invaders destroy
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What were some of Apple’s biggest successes and failures? Describe why. Apple Successes Three of Apple’s biggest successes are the iPod‚ iTunes‚ and iPhone. Introduced in 2001 the iPod offered consumers and easy interface to house up to 1000 “on the go” songs. For Apple‚ the iPod offered a monopoly type product with high margins. The iTunes application also rolled out in 2001 and offered users and easy interface to search and download music and movies. In 2002‚ Apple released the Windows
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2. What are some of the factors that contribute to the increase of crime in cites? Give specific reasons and examples to support your answer. It is a common fact that crime rates are rapidly increasing in cities. It is important to recognize that this is mainly due to a more significant rural exodus: The increase of population in these urban areas. Therefore‚ the presence of slums‚ ghettos and impoverished neighbourhoods. These increasing crime rates appear to be more obvious amongst the youth
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“Are some ways of knowing more likely than others to lead to truth?” Marie Couffon Mr. J Theory of Knowledge Words count: 775 If reason and perception have their own process of leading to truth‚ then is there some ways of knowing more likely than others to lead to truth? I think that Reason and Perception have their own process which leads to truth and therefore that there isn’t any way of knowing which is more likely to lead to truth than others. Truth depends on
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What Is The Best Way to Educate Our Children? Western Governors University Collegiate Level Reasoning and Problem Solving Janie Davis What Is The Best Way to Educate Our Children? Education has been in a crisis for a long time in America‚ but few can agree on a solution to this open-ended problem which debated by both experts and lay persons. Federal and state policies need creation and enactment for targeted assistance to schools needing improvements‚ like low-income schools and
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