In what ways dimension table are often not normalized.

Q: What are the objectives of a data warehouse environment?

A: what is the data warehouse -> Data warehouse is a relational database that is designed for query…

Q: What is The primary key of each dimension table?

A: Given: What is The primary key of each dimension table?

Q: What is multIple fact taBles?

A: FACT table : it consist of the metrics, measures and fact of the business process, that will locate…

Q: In what ways are dimension tables often not normalized?

A: Stаr  sсhemа  dimensiоn  tаbles  аre  nоt  nоrmаlized,  snоwflаke  sсhemаs  dimensiоn  tаbles  аre…

Q: What exactly is multiple fact taBles, and how does it function in practice?

A: A fact table is used in the dimensional model in data warehouse design. A fact table is found at the…

Q: Explain the process for data integration for a data warehouse?

A: Given: Explain the process for data integration for a data warehouse?

Q: Explain the Entity-Relationship model and its use in a database.

A: Intro In this question, we have to understand the Entity-Relationship model in the database. Let's…

Q: Contrast the terms reconciled data; derived data?

A: The terms to be contrasted are-: reconciled data; derived data

Q: What are some of the ways dimension tables aren't normalised?

A: Introduction: Normalization is not performed on the star sshema dimension tables; however,…

Q: What precisely is meant by the term "many fact tables"?

A: Given: A fact table is used to hold quantitative data for analysis and is often presented in a…

Q: What are the steps for implementing a data warehouse.

A:

Q: What is a dimension table? What types of data are stored in dimension tables

A: The dimension table is used in the data warehouse. The data which is stored in there tables are used…

Q: What is multiple fact taBles actually, and how does it work in practice?

A: Introduction: The FACT table contains the metrics, measures, and facts of the business process, and…

Q: an extensive explanation of what a data warehouse is. What was a data warehouse's original purpose…

A: Introduction: Now-a-days Businesses acquire and keep huge volumes of client data, including…

Q: What are the benefits of independent data marts.

A: Given: What are the benefits of independent data marts.

Q: What is the definition of a dimension table? What kinds of information are kept in dimension tables?

A: The dimension table is used in the data warehouse. The data which is stored in there tables are used…

Q: Use examples to compare unstructured and structured data. Which kind is more common in a commercial…

A: Introduction: Unstructured Data: Unstructured data is the information or data that doesn't have any…

Q: What exactly is meant by the term "many fact taBles," and how does it function in practical use?

A: A fact table is the central table in a star schema of a data warehouse. A fact table stores…

Q: sid name time secno room course- student takes courseno offerings marks year semester program eid…

A: Answer :-             E-R diagram:-

Q: Using the ERD diagram above, identify one instance where a data redundancy issue could be found

A: Lets see the solution.

Q: What is a fact table? What types of data are stored in fact tables?

A: Answer: Fact Table:- A fact table is a fully normalized table that resides at the center of the star…

Q: Why an index table is much smaller than a data table?

A: Index table: These are the special lookup table, used for speeding up the search of the database…

Q: To make database field requirements, what must be done?

A: Database Field: A field is a data structure for a single piece of data in a database table. Fields…

Q: Normal Form and Normalization

A: About Normal Form and Normalization

Q: Explain merging of datasets and the reason why it is done in data management.

A: Data merging is the process of combining two or more data sets into a single data set.

Q: What are the decisions that are required to develop field specifications in databases ?

A: The judgments that must be addressed during the preparation of Field specifications include the…

Q: In reality, how does multiple fact taBles truly work?

A: Given: In reality, how does multiple fact taBles truly work?

Q: Give use of packaged data model for data model.

A: Use of packaged data model

Q: Explain the various tables used in EIGRP?

A: Given: Explain the various tables used in EIGRP?

Q: Convert the following ER model to relational Model S ss SID S Name Avg Grade D ID D Name OLocations…

A: The answer given as below:

Q: Define relational model

A: Each and every organization contains a certain amount of data that needs to be stored for future use…

Q: Contrast the terms structured data; unstructured data

A: The contrast between structured data and unstructured data is given below:-

Q: It is termed a any characteristic or set of attributes that may be utilized to uniquely identify one…

A: The key is a any characteristic or set of attributes that may be utilized to uniquely identify one…

Q: Discuss the difference of Database and Data Warehousing. Make sure the index similarity is less…

A: Database Datawarehouse Defination Аny  соlleсtiоn  оf  dаtа  оrgаnized  fоr  stоrаge,…

Q: In the data science process which step takes the longest time to complete?

A: Answer : -   Explore and data cleaning

Q: Explain how to normalize a database table that is both redundant and non-redundant.

A: The Normalization technique with respect to a redundant and non-redundant database table:…

Q: A collection of tables to represent both data and relationships among data, is known as a semi-…

A: A database model shows the logical structure of a database, including the relationships and…

Q: An example of a real-world SQL database should be provided, along with an explanation of the…

A: Introduction: SQL Databases use Structured Query Languages and are part of Relational Database…

Q: A dimensional model is employed in the construction of a data warehouse, but what precisely does it…

A: GIVEN: A dimensional model is employed in the construction of a data warehouse, but what precisely…

Q: To create database field requirements, what choices must be made?

A: Given: User requirements, also known as user needs, explain what a user accomplishes with a system,…

Q: When it comes to database architecture, why do you believe entity relationship (ER) diagrams are…

A: Introduction: An entity-relationship diagram represents a database's conceptual, graphical, and…

Q: What are the typical database statistics measurements for resources

A:

Q: Describe some schemes for identifying data at different levels. Why is it important to have such…

A: Mostly the organisation would process and store some of the data which are for commercial use that…

Q: Explain how Fact and Dimension Tables are SIMILAR/RELATED to each other.

A: Write about the similarity of two terms: Fact table and Dimension table

Q: Explain Data flow analysis.

A: Data Flow Analysis: Data Flow Analysis is the technique to analyse the information gathered from a…

Q: Describe Data Sparsity, and how does it impact on aggregation?

A: The word "data sparsity" refers to the occurrence of not noticing enough data in a dataset. The…

Fundamentals of Datawarehouse

A data warehouse is a data repository which is used to store large quantities of historical data that are mostly used for creating reports that help businesses to identify their weaknesses and strengths. For example, demographics data about people of a region can help businesses identify the needs and preferences of the region’s population. A data warehouse acts as a central storage for storing data that comes from one or more heterogenous sources. It also consists of data which can be old and of historical value. One of the most important applications of this type of system is that it is used for supporting business intelligence and data analytics applications.