When we are using MS Access to define our tables, which model are we creating?   Question 11 options:   1)  Internal model   2)  External model   3)  Conceptual model   4)  Physical Model

Q: hat are the advantages of using the same data model for both conceptual and logical design over…

A: Some of the advantages and importance of data modeling are- - it is used for keeping references of…

Q: n the attached diagram, which of the following statements are true?       primary key for section…

A: Weak entities are represented with double rectangular box in the ER Diagram and the identifying…

Q: 123. The hierarchical models and network models are considered as types of a. logical structural…

A: The hierarchical models and network models are considered as types of There are four options given.…

Q: Q1 / answer the following: 1- The difference between relational data model and entity- relationship…

A: 1. In Relational data model , the relationship between entity is represented using table. While…

Q: the Garden Glory database and Use the IE Crow’s Foot E-R model for your E-R diagrams. Justify the…

A:

Q: 21. In categories of data modeling, the low level data models are also called a. conceptual data…

A: Given data is shown below: 121. In categories of data modeling, the low level data models are…

Q: Draw relational database schema as asked Q4. Consider the EER diagram for car dealer database in…

A:

Q: Which data model does not support the many-to-many relationship between entities

A: Relational databases

Q: l models and network models are classified as a. non-classical models b. legacy data models c.…

A: Given we are required to find out: The hierarchical models and network models are classified as

Q: Draw a database ER model about airport Covid-19 procedure (can include entities like passenger,…

A: ER diagram will contain Airport Flight Worker/ Employee Ticket Store Supplier and all their…

Q: Write an abstract text about CMMI ( Capability Maturity Model Integration). Also use graphs, tables…

A: Given: Write an abstract text about CMMI ( Capability Maturity Model Integration). Also use graphs,…

Q: Assume that there are two entity sets A and B, both of which possess the property X. (among others…

A: SUMMARY: -Hence, we discussed all the points.

Q: an ER diagram of ONLINE COURSE REGISRATION database, that captures all the given below requirements.…

A: Lets see the solution.

Q: 145. In RAD modeling, data object sets defined in data modeling phase are converted to establish…

A: Please find the answer to the above question below:

Q: Consider the below ERD in Figure 03 of Student Enrolment system and answer the below questions.…

A: List the strong (non-weak) entity types in the ER diagram. Student Enrollment Lecturer Subjects…

Q: 2. Draw an ER diagram for FOOTBALL TOURNAMENT DATABASE that captures given below requirements.…

A: Given: 2. Draw an ER diagram for FOOTBALL TOURNAMENT DATABASE that captures given below…

Q: . In Three-Schema Architecture, the schema which gives the description about physical data model,…

A: There are three type of schema in databases  1) Physical schema or internal schema:- Describes how…

Q: Which one of the following statements accurately describes a major difference between the…

A: The ask is to choose the major difference between the hierarchical model and the network model from…

Q: Draw the ERD Diagram to create relational model corresponding to the described Scenario. The loan…

A:

Q: Develop/create a Decision Table and Decision Tree that represents the registration system at your…

A: I will explain it in details,

Q: Hi can i get a data schema showing an instance of a table that was not normalised and goes through…

A: The solution for the above given question is given below:

Q: Consider a database used to record the marks that students get in different exams of different…

A: Considered the following attributes to draw the ER diagram: The entities are listed below: student…

Q: The type of data independence in which the schema can be altered on conceptual level without…

A: The type of data independence in which the schema can be altered on conceptual level without…

Q: diagram is a graphical representation of an information system, illustrating relationships among…

A: A(n) __________ diagram is a graphical representation of an information system, illustrating…

Q: Which one of the following statements accurately describes a major difference between the…

A: Hierarchical model is a data model that organizes data in tree like structure and each child has…

Q: 171. The type of data independence in which the internal schema can be modified without modifying…

A: There are various types of data independences in dbms. According to the usage of data independence…

Q: ER model relationships are represented using a.) relationship keys b.) primary keys c.) crows…

A: To find the solution for: ER model relationships are represented using  What do the cardinalities…

Q: What is the difference between the E-R model and the extended E-R model?

A: Enhanced entity-relationship (EER) diagrams are basically an expanded upon version of ER diagrams.…

Q: 74. The term Incomplete for a UML has the same meaning as which of the following for an EER diagram?…

A: Given: 74. The term Incomplete for a UML has the same meaning as which of the following for an…

Q: In categories of data modeling, the high level data models are also called a. triggered data…

A: High Level-conceptual data model: User level data model is the high level or conceptual model. This…

Q: Subject: ER - Diagram to Relational Model Construct an E-R diagram for a local grocery store whose…

A: Actually, database is a used to stores the data.

Q: Question 1   A) Basic building blocks of data models are entities, attributes, relationships, and…

A: DBMS is a Database management system that consists of various things for creating the data model.…

Q: Which data model does not support the many-to-many relationship between entities? Explain that model…

A: Since it is not possible to store the data efficiently in relational databases, you cannot enforce a…

Q: Develop a simple data model for a student database that includes student contact data, student…

A: To create the data model for the given information the data model contains four tables: -…

Q: What is the main role of an ER diagram in data modelling? How many courses each student can have?…

A: What is the main role of an ER diagram in data modeling? An entity-relationship diagram, or ER…

Q: Consider an E-R diagram containing 2 strong entities A and B. The cardinality ratio between the two…

A: Minimum number of tables required are 4

Q: With an example explain what a derived attribute is?

A: DBMS:- DBMS is software that is an interface between user and database(or data). The DBMS is a…

Q: Do a conceptual data model (CDM), logical data model (LDM) and physical data model (PDM) for online…

A: In Data modelling, there are three types of models that includes: Conceptual data model Logical…

Q: o Modify the diagram to incorporate included relationships. o Consider the use cases View/respond to…

A: I'm providing the answer of above all mentioned parts. I hope this will be helpful for you..

Q: make a scenario that college, student and department have relationship, define attributes in…

A: ANSWER: Entity Relationship of College, Student & Department: Entity Relationship Diagram is…

Q: 4. Using the following sample relation and your knowledge of declarative constraints: STUDENT…

A: Due to company policies I m compelled to solve only one question and that is the first question. The…

Q: Derive relations from conceptual model to logical data model. Identify the PK and FK

A: The given problem is a database modeling problem where the entity-relationship model is given. The…

Q: Step 1: Data Modeling - Create an ER diagram: Draw an ER diagram that captures the preceding…

A: Here is the answer:-

Q: An entity in A is associated with at most one entity in B. An entity in B, however, can be…

A: Explanation :As given in question more than one entity in one set (A) is related to at most one…

Q: 4+1 view alignment with UML diagrams. How can the different views of the 4+1 view model, be…

A: UML diagrams: UML stands for unified modelling language, UML is a modern approach to modeling and…

Q: In an E-R diagram, there are two entity sets, students and courses, and one relationship set, take.…

A: E R Diagram

Q: Map the ER diagram to its correspond relational model, identify the relationship and map the…

A: As per the guidelines we are supposed to answer only one question. Kindly repost the other question…

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.