HW For the following business case, you need to design a data warehouse logical model (dimensional model) that meet the analytic requirements. Business Case Summary: . Manufacturer of many products sold to a large number of customers . Invoices are generated when products are shipped from its warehouses to customers . Each invoice identifies the ship date and the requested ship date · Each invoice line identifies the product shipped and the line item quantity, gross amount, discount, and net amount Analytic requirements Need to know how much we're invoicing which customers on a daily basis h cuctomore from which warehouse

HW For the following business case, you need to design a data warehouse logical model (dimensional model) that meet the analytic requirements. Business Case Summary: . Manufacturer of many products sold to a large number of customers . Invoices are generated when products are shipped from its warehouses to customers . Each invoice identifies the ship date and the requested ship date · Each invoice line identifies the product shipped and the line item quantity, gross amount, discount, and net amount Analytic requirements Need to know how much we're invoicing which customers on a daily basis h cuctomore from which warehouse

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

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Explore the concept of data modeling in data warehousing. What are the different data modeling techniques used to design a data warehouse schema, and how do they impact query performance?
“Martial Arts R Us” (MARU) needs a database. MARU is a martial arts school with hundreds of students. The database must keep track of all the classes that are offered, who is assigned to teach each class, and which students attend each class. Also, it is important to track the progress of each student as they advance. 1.Create a complete Crow’s Foot ERD for these requirements: 2.Create a relational diagram for the data model. 3.Draw the dependency diagram showing partial and transitive dependency(if any). 4. Normalize the tables to 3NF. 5. Show the dependency diagram after normalization. 6. Use SQL to create all tables in Access. Do not forget FK,PK 7. Create relationships.
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Part 2: Relational data model. Take a subset of the ideas from the conceptual model you constructed in Part 1 and design a simple relationship model similar to the ones we discussed in Module 2, Video 4 Your model should have at least 5 tables You should include at least 20 attributes, or fields, in your model (20 total across all tables, not per table) Your model should be normalized Identify the primary key in each table, and state whether it is a natural or surrogate key For each relationship between tables, identify any foreign keys needed to define the relationship For each table, identify what type of system or systems you think the data might come from, like those we discussed in Module 1, Video 6.
When creating a data warehouse, a dimensional model is employed, but what precisely does it do?
The purpose of the assignment is to facilitate the learning of data modeling concepts through models developed by individuals. Things to be considered in the applications to be developed: Creating a model with at least 15 tables for vaccination tracking system. The characteristics and relationships of the tables are in the model. Step by step analysis of the normalization steps for a table with multiple relationships in the model. It will briefly be stated which entity-tables will be used for what purpose. Only special rules will be added in the relational data model that cannot be directly specified.
Describe the concept of data modeling in data warehousing. What are the different modeling techniques (e.g., star schema, snowflake schema), and when is each one appropriate for structuring data in a data warehouse?
Explain the concept of data modeling in data warehousing, focusing on star schema and snowflake schema designs. What are the advantages and disadvantages of each modeling approach, and in what scenarios are they best suited?
Topic: Database Design - Entity Relationship Modeling (Please answer the below question in 250 words or more). Thank you! It is known that we should avoid redundant data. Let’s say you have a Product Table with the cost of an item, and an Order table that has information about orders from customers. What would be the benefits to also storing the item's cost in the Order table?
Read the following business rules carefully and use common sense when necessary to come up with a good database design as follows: 1- First, develop an ER model. Make sure to use meaningful entity names and relations. 2- Translate ER model into a set of tables, relations and constraints. 3- Label appropriate columns as primary keys and foreign keys. Business rules: A patient can make many appointments with one or more doctors in the clinic, and a doctor can accept appointments with many patients. However, each appointment is made with only one doctor and one patient. Emergency cases do not require an appointment. However, for appointment management purposes, an emergency is entered in the appointment book as “unscheduled.” If kept, an appointment yields a visit with the doctor specified in the appointment. The visit yields a diagnosis and, when appropriate, treatment. With each visit, the patient’s records are updated to provide a medical history Each patient visit…
Explain the concept of data modeling in a data warehouse. What are the differences between dimensional modeling and normalized modeling, and when should each approach be used?
Read Scnerio carefully : Make a Propose and optimal database design in RDBMS for a super store. In which clients came and can purchase products according to their likes and dislikes. Super store have same products of different companies. In the end client received a receipt of their purchase from counter he/she go for bill. Database also save records of stock according to FIFO system. Required to define Entities and their attributes Attributes Types Each Attribute Required Define keys of each entity Define relationship between the entities.