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You are required to design a data warehouse schema for recording the history of rental services of XYZ's customers (not including the customers who have ordered or picked up cars but have not returned their rental cars). The schema needs including the necessary data about the demonstration. The fact table should contain four kinds of data dimensions:
customer information, car information, store information and time. For each data dimension, you need to consider a reasonable hierarchy (e.g., time dimension - Year, Month, Week, Day; Geography - Country, State (Province), City, St.). More specifically, you need to answer the following four questions:
(1) Proceed to a source analysis: list the all facts and dimensions of the enterprise(2) Provide a data profile to describe the source data (read "carRentalDataSource.xlsx" to answer this question)(3) Choose a model (star, snowflake or constellation) and discuss why it is an appropriate choice(4) Draw a diagram to show your proposed data warehouse schema
You are to design a prototype for a hospital management system. Design a data model for this system, Convert the data model to a set of virtual windows.
Provide a SQL script file to define the database schema, HappyCustomerDB. Your script should be organised so that whenever the script is loaded all the database objects will be dropped and re-created.
Describe how you would implement relationship between employees and projects in each of the given scenarios: Many employees can work on given project, but each employee can work on only single project.
Database Questions: What do you mean by data base scheme? What do you mean by cardinality ratio? What do you mean by degree of relation?
Indicate changes you require to make to design of Premiere Products database to support following situation: There is no relationship between customers and sales reps.
Prepare a memorandum examining use of databases in organization. Write database applications are used: Microsoft Access, DB2, Oracle, etc.
Create a database design specification Enhanced Entity Relationship Diagram (EERD) and Relational Data Model from the given business description - Database Management System
Generate the view called RepairSummary which shows only RepairInvoiceNumber, TotalCost, and TotalPaid. Illustrate the SQL statement to retrieve all RepairSummary data sorted by TotalCost.
Imagine that you have been hired to fulfill their need of enhancing the data repository for their current reservation processing system. Upon reviewing the system, you find that the data structure holds redundant data and that this structure lacks..
Suppose you are asked to evaluate a DBMS in terms of lock granularity and the different locking levels. Create a simple database environment in which these features would be important.
Explain the ‘Document Principle' as used in SAP. What information is presented in the ‘header' section of a document versus the ‘line item' section?
The array was the first example of a structured data type that can hold multiple values. The structure is the second example
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