Data modeling

http://www.oppapers.com/essays/Value-Chain-Analysis-Ba/689012 http://www.oppapers.com/essays/Value-Chain-Analysis-Ba/689012 Problem A Use the database shown in Figure P3.1 to work Problems 1-7. Note that the database is composed of four tables that reflect these relationships: • An EMPLOYEE has only one JOB_CODE, but a JOB_CODE can be held by many EMPLOYEEs. • An EMPLOYEE can participate in many PLANs, and any PLAN can be assigned to many EMPLOYEEs. Note also that the *:* relationship

components of a DBMS. Database Management System(DBMS) is a collection of interrelated data (database) and set of programs to access and modify those data. DBMS has several components. Each component has some specific task to perform. The Major components DBMS are as follows, Hardware Without hardware it is not possible to implement DBMS. The main hardware is the computer used for storing and accessing the data in database. Other hardware components used in DBMS are Storage devices, I/O devices, and

Entity Framework o Creating a data model from existing database • Creating Web API using Visual Studio o Working with JSON Object in ASP.NET MVC using Angular • Using Angular JS with ASP.NET MVC o Sending and Receiving JSON Object to Angular JS Using Entity Framework ActiveX Data Objects (ADO), in .Net framework ADO.Net is a set of classes to expose the data access services for .Net framework developer. ADO.Net contains the set of components to create distribution and data-sharing applications. Using

then she will give the announcements to students about the deadline. Moreover, all events will be logged keeping in mind the prevention of data loss and keep the system safe. Additionally the system must be effectively backed up. The system can be implementing with utilizing data structures, for example, files, however by utilizing database for managing data; it will be substantially more sensible and effective. It is clear that the preferences of relational database idea have demonstrated, so we

Hierarchical Database Kind of database model which is designed in a hierarchy completely access to data beginning at the highest of hierarchical then changes to down such as customer to order. Also this system relation records together same a family tree that each record has just one owner. The hierarchical typical structure has levels which shows one –to – many also relationship between a parent and children divisions. The main key this models which following by each parent can have many children

n of different data models and schemas a) Critically compare the following database types (schemas) Hierarchical Database Kind of database model which is designed in a hierarchy completely access to data beginning at the highest of hierarchical then changes to down such as customer to order. Also this system relation records together same a family tree that each record has just one owner. The hierarchical typical structure has levels which shows one –to – many also relationship between a parent

Management Systems 5 Determine the need for a DBMS and show a full understanding of its value (2.1 & 2.2) 6 Construct an E-R diagram for RDBMs 6 ER Diagram (3.1) 7 Demonstrate the need to eliminate M:N relationships. (3.2) 8 Normalise data up to 3NF 9 Normalise data for the given scenario from UNF to 3NF (4.1) 10 UNF 10 1NF 11 2NF 12 3NF 13 Explain the purpose of normalisation. (4.2) 14 Understand File Processing 15

Analytical Processing server. It is written in Java and used for reporting and data warehousing. It supports Mulidimensional expression query language i.e, MDX, OLAP4J for interface specification and XML for analysis. It is an open source OLAP server and more useful for analysis that involves drilling down data. The Mondrian schema is supported by almost any OLAP client tool. Connecting to Mondrian Engine Mondrian maintains data in MDX fashion. For us to access any existing cube, we need some reporting

because it can satisfy the complex demands of the market today better than the any other. Secondly while the relational data base stores data as tables, the object model stores data as objects and creates associations. This can create a multiple set of attributes for each object such that the data base is more flexible to the requirements that may be housed for different sets of data having both similar and dissimilar characteristics. The paradigms then are developed for each set of common characteristics

either of the trees you saved by clicking on the tree icon in front of its title. 19. On the left-hand page where the opened tree appears, right-click (or Ctrl-click) on the tree, and select Copy Data. 20. Next, open the other tree, and then right-click (or Ctrl-click) on the left-hand page. Select Paste Data. Using the scroll bar, you should see the two trees, one above the other. 21. Select both trees by command- or