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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University of Greenwich Database assignment2 Iago Castro Cuna Student ID: 000628811 Course ID : COMP1450 DATABASE ASSIGNMENT2 Iago Castro Cuna Table of Contents 1 INTRODUCTION ..................................................................................................................... 4 2 CREATING THE DATABASE TABLES ....................................................................................... 5 2.1 Creating the company .........................................
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Server Express. The advanced services have a database engine‚ full text search‚ reporting services‚ business intelligence development studio‚ and SQL server management studio. The tools have a database engine‚ and SQL server management studio. The SQL Server SQL Express has just a Database engine. The Limitations are there can only be 1 CPU‚ only 1GB of memory‚ only 10GB of size‚ and you can only do replication if you are a subscriber. [3] Oracle Database 11g Express has limitations of 1 CPU‚ 1GB
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1020-006 20 March 2014 Word Count: 573 An Effective Argument Kevin Alexander writes an article titled‚ “Myspace Not Responsible for Predators”. In the article he discusses the lawsuits towards Myspace for molestation. He believes that it is not Myspace’s fault for these terrible occurrences. He has a very strong‚ mainly one sided view of the subject‚ and that in no way could Myspace be responsible. The fact that these incidents happen is truly heartbreaking‚ but as far as Alexander’s argument
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Normalization Normalization is a method for organizing data elements in a database into tables. Normalization Avoids • Duplication of Data – The same data is listed in multiple lines of the database • Insert Anomaly – A record about an entity cannot be inserted into the table without first inserting information about another entity – Cannot enter a customer without a sales order • Delete Anomaly – A record cannot be deleted without deleting a record about a related entity.
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Database Organization Here at the College of Veterinary Medicine‚ the databases that I have used are Microsoft SQLServer‚ Microsoft Access‚ and ProISAM. ProISAM is the type of database that Vetstar (our Hospital system) uses. It is the proprietary database for the PROIV programming environment that Vetstar is written in. The main problem with this database is that it is not ODBC compatible which just means that you cannot
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1980-1988’. Oxford: Osprey Pub.‚ 2002. Lori Fisler Damrosch‚ International Law‚ Cases and Materials‚ West Group‚ 2001 Peter R. Oil and World Power [ 1 ]. Karsh‚ E. ‘The Iran-Iraq War‚ 1980-1988’. Oxford: Osprey Pub.‚ 2002. Pp‚ 68 [ 2 ] [ 3 ]. Gordon‚ Joel. "William L. Cleveland‚ A History of the Modern Middle East (Boulder‚ Colo‚ and Oxford: Westview Press‚ 1994). Pp. 508." International Journal of Middle East Studies 28.02 (1996): 261. [ 4 ]. Odell‚ Peter R. Oil and World Power. Harmondsworth‚ Middlesex
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a family reunion database using Microsoft Access‚ we first need to break down the information currently available to us. Since the database will hold names and other information on family members attending the reunion‚ we need to decide on the model type of the database. Family reunion is rather straightforward event with not much complexity to the data‚ so it will be easier and much more efficient to use Relational Database Model. Relational Database model is a simple database‚ which includes Entities
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Questions 1. Why would a large and complex company like Boeing employ off-the-shelf application-specific software for accounting‚ human resources‚ supply chain management and other core business processes? And why do they choose to own‚ host and operate all of their own software rather than to for example outsource payroll to ADP Corporation or sales force management to Salesforce.com? a. Boeing probably uses off-the shelf application specific software for their core business processes
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of the database applications. 2. What is the role of the database in the IS generic architecture? 3. What is file-based system? Give 2 examples of FBS. 4. What are main limitations of FBS? 5. What is database? 6. What does it mean that database is self-describing collection of interrelated records? 7. What does it mean that data is integrated? 8. What does it mean that database is collection of logically related data? 9. What is DBMS? 10. What are the main categories of database languages
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