We should avoid redundant data. Lets 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?

Q: We should avoid redundant data. Lets say you have a Product Table with the cost of an item, and an…

A: Data Redundancy is having same data for multiple times and data redundancy results in anomalies and…

Q: It is known that we should avoid redundant data. Let’s say you have a Product Table with the cost of…

A: Database Design:- As the user’s requirements change,so developers need to change DBMS from time to…

Q: In the event that you are operating a clinic that treats patients of various kinds, you should infer…

A: Given: In the event that you are operating a clinic that treats patients of various kinds, you…

Q: You can only evaluate a model based on how well it performs on real-world data. what do you want to…

A: Introduction: Given that, the only way to judge a model is to observe how well it works on test…

Q: Table Store_Information store_name Sales Date Los Angeles $1500 Jan-05-1999 San Diego $250…

A: Given:

Q: ow to convert the shown ER diagram to meta data?

A: The given diagram is Entity Relationship diagram where the data model of a store management system…

Q: Consider the following data about houses, where an owner can own many houses, but a house belongs to…

A: Given: Statement:                    House (houseID, OwnerID, OwnerShipDate, OwnerName,…

Q: Consider the following data about houses, where an owner can own many houses, but a house belongs to…

A: A relation is in 3NF if it is is 2NF and no transitive partial dependency. A relation is in 2NF if…

Q: functional dependencies, what is the highest normal form the data model complies to? Note: Primary…

A: Primary key for the given relation is JobID A relation is said to be in 1NF if none of the attribute…

Q: Data independence is an essential objective, but what does it imply exactly?

A: It imply exactly

Q: Consider the following data about pets, where an owner can own many pets, but a pet belongs to one…

A: Third Normal Form (3NF): The relationship is in 3NF if in 2NF but it does not include a partly…

Q: How concept hierarchies are useful in data mining?

A: The Answer is

Q: Why are some table structures deemed terrible while others are deemed good? How can you know which…

A: Given that; The topic is about Why are some table structures deemed terrible while others are deemed…

Q: In what ways is starting a data modeling project with a packaged data model different from starting…

A: Answer

Q: Are there any advantages to using several fact taBles?

A: Fact Tables: A Fact table in a Data Warehouse framework is only the table that contains the real…

Q: Are there any advantages to using several fact taBles?

A: INTRODUCTION: In a data warehouse's star structure, a fact table is referred to as the central…

Q: Are there any advantages to using several fact taBles?

A: Given: Are there any advantages to using several fact taBles?

Q: What exactly do you mean when you say "simple" and "composite" attributes?

A: The entity-relationship (ER) paradigm is a means of conceptually designing databases. It is based on…

Q: Use the following un-normalized data and prepare a set of tabled that is in its third normal form.…

A: Objective: Given a relation as follows, SO# Date Item# Description QTY Unit price Cust # Cust…

Q: There are two programming models in Big Data Ecosystem i.e. Map Reduce and Spark, what are the…

A: Map Reduce and Spark: Both are models in Big Data Ecosystem.   MapReduce does not support stream…

Q: There are two programming models in Big Data Ecosystem i.e. Map Reduce and Spark, What are the…

A: Spark –  it is a unified analytics engine for large scale data processing and it is maintained by…

Q: There are two programming models in Big Data Ecosystem i.e. Map Reduce and Spark, what are the…

A: Spark –  It is basically an analytics engine for large scale data processing and it is maintained by…

Q: There are two programming models in Big Data Ecosystem i.e. Map Reduce and Spark, what are the…

A: Refer to step 2 for the answer.

Q: What is the difference between reconciled data and derived data?

A: The three-layer data architecture is comprised of a real-time data layer, a reconciled data layer…

Q: Transform the given ERD (given on next page) into Relational Model. P Id Date of Patient Birth Date…

A:

Q: Note the imperfect table below, try to pass through the set of stages in normalization to get a…

A: Normalization is a database design practice that decreases data redundancy and removes unwanted…

Q: Give an example of why an index is only helpful if the attribute values are diverse enough?

A: Introduction: It's easier to compare biodiversity with other communities when you know the adequate…

Q: Analyze Logical Data Independence and Physical Data Independence with examples

A: Actually, data independence the ability to modify the physical schema without causing any changes in…

Q: Why do we use contingency tables, instead of just presenting the graphical results

A: Contingency tables  are also known as the cross tables and the  two way tables which are used to…

Q: There are two types of tables X and Y , let assume the X is the shorter one and Y is more longer.…

A: Given: There are two types of tables X and Y , let assume the X is the shorter one and Y is more…

Q: There are two types of tables X and Y , let assume the X is the shorter one and Y is more longer.…

A: Java is a high-level, class-based, object-oriented programming language that is designed to have as…

Q: There are two types of tables X and Y, let assume the X is the shorter one and Y is more longer. the…

A: Steps followed to create the program using blocks: Go to the Data tab and create 9 variables 3 for…

Q: There are two types of tables X and Y, let assume the X is the shorter one and Y is more longer. the…

A: Java is a high-level, class-based, object-oriented programming language that is designed to have as…

Q: Given the business rule "An employee may have many degrees." Suppose that an employee has the…

A: EXPLANATION Below is the answer for the given question. Hope you understand it well. If you have any…

Q: David wants to make improvements to the management of his company inventory and will like to start…

A: Primary keys uniquely identify a tuple in a relation Foreign keys are used to establish a relation…

Q: What is the difference between beginning a data modeling project using a packaged data model and…

A: In the case of the bundle Begin by identifying and concentrating on the components of the…

Q: In a project that uses a packaged data model, how might data profiling be used?

A: The answer :

Q: are the differences between starting a data modelling project with a packaged data model and…

A: Data modelA packaged data model makes available the metadata of a consistent, industry-vetted data…

Q: The following question is based upon the Patient-Treatment relation which records the details of…

A: Step 1:- Note:- I am giving the solution to the 1 question only. The given question contains the…

Q: Question 4: Go to ClassicModels and answer this question based on that database. Let's assume I have…

A: To show the counts in single output. Then we need to use the DUAL table which only give only one…

Q: What are the differences between starting a data modelling project with a packaged data model and…

A: Given that, What are the differences between starting a data modelling project with a packaged data…

Q: What is meant by total ordering and where it is used?

A: given the Data What is meant by Total ordering and where it is used

Q: When it comes to table structures, why are some considered bad while others are deemed excellent by…

A: Normalization is a database design method that minimizes unwanted features such as Insertion,…

Q: When it comes to table structures, why are some considered bad while others are deemed excellent by…

A: To discuss the importance of normalization in table structure.

Q: The purpose of a movie manager is to implement a data warehouse application to improve analytics and…

A: Actually, given information  The purpose of a movie manager is to implement a data warehouse…

Q: Convert the Entity Relationship Diagram in to Q1. relational database by using MS Access (Note:…

A: Microsoft Access is a database management system (DBMS) from Microsoft that combines the relational…

Q: What do you understand by the term ‘Data Modeling’?

A: Introduction: Data modeling is the act of describing links between data components and structures by…

Q: Question: From the attached ER diagram, is the solution below. Kindly explain to me the meaning of…

A: Value sfor…

Q: If you were to run the below code (copy and paste into SAS using the ANALYTIC dataset created during…

A: Answer: I have given answer in the brief explanation.

Q: What is the purpose of multiple fact taBles, and how does it work?

A: In relational data sources, multiple-fact, multiple-grain searches occur when a table holding…