Deciding on the perfect date and time for the shadowing experience was challenging. I wanted to go with my “BFF” that had been assigned in class but being that one person never replied and we had to work around our work schedules it seemed like we would never get to visit. So‚ I decided to just schedule the time that was best for me and let my “BFFs” know. I emailed Lieutenant Sligh and set up a date. Although his initial email confused me because he said that he got off at 4 but we could still come
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DATABASE SPECIFICATIONS 1. TABLE NAME : TBLGENDER FIELD NAME DATA TYPE SIZE CONSTRAINT REFERENCES GID IntN/A PK‚ IDENTITY NONE GDESC Varchar6 NOT NULL NONE 2. TABLE NAME: TBLGRDLVL FIELD NAME DATA TYPE SIZE CONSTRAINT REFERENCES GRDID IntN/A PRIMARY KEY‚IDENTITY NONE GRDLVLDESC VarChar15 NOT NULL NONE GRDSECTION Varchar15 NOT NULL NONE 3. TABLE NAME: TBLRANK FIELD NAME DATA TYPE SIZE CONSTRAINT REFERENCES RANKID IntN/A PRIMARY KEY‚IDENTITY NONE RANKDESC Varchar20 NOT NULL NONE 4.
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The entity-relationship model (or ER model) is a way of graphically representing the logical relationships of entities (or objects) in order to create a database. entity type is a collection of entity instances sharing similar properties Strong Entity Vs Weak Entity An entity set that does not have sufficient attributes to form a primary key is termed as a weak entity set. An entity set that has a primary key is termed as strong entity set. A weak entity is existence dependent. That is the
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Shadowing experience is a great opportunity to get more insight of a specific work field. During my experience‚ I had the chance to shadow an occupational therapist at a nursing home facility. Throughout my experience‚ the occupational therapist met with different patient with different type of health issues. One patient that got my attention was a female elderly patient who was about 75 years old. The therapist introduced me to her because we both from the same country. The therapist also mentioned
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Running Head: Database Development Case Study: Database Development Maintenance plans and activities that could be performed in order to improve data quality In order to improve the quality of datasets various activities to be performed like error detection and correlation‚ process design and process control and improvement In error detection method‚ errors are detected by comparing data to a correct baseline and by checking for missing values. By examining time stamp incorrected
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What kind of databases and database servers does MySpace use? A database is an organized collection of data. A database server is a computer program that provides database services to other computer programs. In the initial phases‚ MySpace operated with two web servers (a computer application that helps to deliver web content that can be accessed through the internet) communicating with one database server and a Microsoft SQL Server database(as s database‚ it is a software product whose primary
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Why are data and databases essential business resources? Data is very important to any business. Data gives you an answer whether the business is going to rise or fall. Data is the answers to the questions like what the attendance for the day is or what the employee satisfaction level is or what issues we have in the production for a particular period or what is revenue for a particular period in business. And‚ keeping these data in a systematic way in a computer is known as database so that it is
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TRADITIONAL FILE ORGANIZATION & MANAGEMENT TECHNIQUES • DESCRIBE HOW DATABASE MANAGEMENT SYSTEM ORGANIZES INFORMATION * 7.2 © 2002 by Prentice Hall LEARNING OBJECTIVES • IDENTIFY TYPES OF DATABASE‚ PRINCIPLES OF DATABASE DESIGN • DISCUSS DATABASE TRENDS * 7.3 © 2002 by Prentice Hall MANAGEMENT CHALLENGES • TRADITIONAL DATA FILE ENVIRONMENT • DATABASE APPROACH TO DATA MANAGEMENT • CREATING DATABASE ENVIRONMENT • DATABASE TRENDS * 7.4 © 2002 by Prentice Hall MANAGEMENT CHALLENGES 1. ORGANIZATIONAL
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Database Systems Relational Database • Most common form of database • Uses tables consisting of rows (tuples) and columns (attributes) • Most tables contain a primary key that uniquely identifies each row in the table (No duplicates allowed) • Rows in one table may point to rows in another table through the use of a foreign key – it points to a primary key in another table. A table may have multiple foreign keys. • Tables are related to one another by their keys Example • Two tables are shown below
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their database to developers and entrepreneurs? Do you agree with this strategy? Why or why not? Amazon and eBay have opened the database doors to thousands of developers and entrepreneurs since 2002. They realized very quickly the benefits of this‚ which was once thought of as risky experiment. A database is a collection of information organized in such a way that a computer program can quickly select the desired pieces of data. It is therefore seen as an electronic filing system. Databases are categorized
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