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Assume the data warehousing system is centralized, and implemented in the environment of Microsoft SQL Server 2012. As we discussed in the introduction, each store has its own local database. Therefore, you can think the source data include both the operational databasesfor ordering and stores' local databases. After a customer returned a car successfully, the system should create a record for this customer and save the record into the central data warehouse.
It is essential to the business to maintain qualified data in the data warehouse. Therefore, you are required to design an ETL process for this question. You are required to decide an application (ETL or ELT) first and then discuss the advantages and/or disadvantages of your proposed application . You also need to define ETL functions to clearly understand what data the data warehouse has and what data the data warehouse does not have.
Draw an E-R Diagram and draw an E-R Diagram for Student Information System.
Describing the purpose of database an its functionality, plus a detailed E-R diagram.
To analyse and comprehend a provided ER diagram and Database Schema and implement a database based on the provided ER diagram and Database Schema
By now you should have a "toolbox" full of useful design and analysis tools. List the tools in your toolbox and then write one short paragraph on how you can/will apply them in your careers, lives, etc.
Suppose you have a relation schema about teaching classes that has the following attributes: Class, Instructor, Time and Room - based on your understanding of this scenario, what functional dependencies can you identify that hold on this relation?
Draw an ER diagram for database scenario. Design a set of 3NF tables for your database scenario.
The marking scheme, which is given in detail below, particularly rewards the way in which you relate your specific proposals to the material presented in the Course.
Create a function that returns the day of the week for a specified date. Create a trigger that displays the message "Emp table updated" when an update to the employee table increases the employee's basic salary.
Choose a model (star, snowflake or constellation) and discuss why it is an appropriate choice.
Consider a video game store. For each game, the database contains information about title, producing company name, designer(s) name(s), version of the game, type of the game and characters in the game.
Assume that data warehouse consists of three dimensions time, customer, and cell phone plan, and two measures number of calls and cell phone bill. Sketch a schema diagram for above data warehouse using star schema.
Design a DSS to help decision-makers run the 2012 London Olympics-Write down the step-by-step solution to train the classifier by the basic perceptron learning rule.
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