What makes the relational data model the most popular data model in use today and give...
Homework Answers
Ans : Relational data model is most popular data model because of following reasons :
* Not require multiple changes in the records.
* Minimization of database size.
* Any data can be easily altered or deleted in this model.
* Records that are linked to modified data will show changes.
Ans : E. F. Codd, are based on first-order predicate logic. Data elements are stored in form of tables which are interlinked to each other by means of common field among them.
Add Answer to:
What makes the relational data model the most popular data model in
use today and give...
There are many data models for DBMS. 1- Which one is the most popular model used...
There are many data models for DBMS. 1- Which one is the most popular model used in DBMS ? Why is this model better than the other models ? Give an example of an old DBMS that did not use this current popular model. 2- Suppose that you have a college that maintains data on Students, Courses, and Instructors. Use the model in question 1 to describe the connection between the data. You should draw a simple diagram to show...
Convert the Conceptual Model into Relational Model. Enter some example data into the relations. Your job...
Convert the Conceptual Model into Relational Model. Enter some
example data into the relations. Your job is to decide whether to
establish the relationship by posting a Foreign Key into the other
table or create a separate table for the relationship. Give reason
for your answer.
i need the answer to be written by computer pls. not hand
written
In the relational model of database, what does decomposition of a relation scheme means and why...
In the relational model of database, what does decomposition of a relation scheme means and why such decomposition is desirable? Give example(s) to support your discussion.
2. What is the most popular 3D printing technology in industry today? Why does the surplus...
2. What is the most popular 3D printing technology in industry today? Why does the surplus portion in LOM process need to be crosshatched? Prototyping
QUESTION 1 What is the most common relationship within a relational database? Select the best answer...
QUESTION 1 What is the most common relationship within a relational database? Select the best answer from the following. One-To-One relationship. o One-To-Many relationship. Many-To-Many relationship. Zero-To-Zero relationship. QUESTION 2 What is an "entity'? Select the best answer from the following. An entity, for our purposes, is the same as a table in the database. An entity represents one of the columns in an individual table. There are no entities in a relational database. Entities are only part of NoSQL...
2 Assignment (30 marks) What are the most popular financial ratios regulators use to assess the...
2 Assignment (30 marks) What are the most popular financial ratios regulators use to assess the adequacy of bank capital today? What is the difference between core (or Tier 1) capital and supplemental (or Tier 2) capital? How are regulatory capital rules likely affect a bank's choices among its assets it would like to acquire?
Draw a data structure diagram [Relational Logical Model ] for the first Image in which patient...
Draw a data structure diagram [Relational Logical
Model ] for the first Image in which patient data is given 2 image
is an example and the third one is the solution for the second
image
Relationshlp for all types of patients PATIENT RESPONSIBLE ls Cared For PHYSICIAN Patient ID Patient Name Admit Date Physician ID Attributes for all types of patlents Relationship for certain types of patients OUTPATIENT RESIDENT PATIENT Is Assigned BED Checkback Date Bed ID Date Discharged Attributes...
In this problem, we are interested in relational data mining (RDM): 1. Explain RDM 2. Give an application example of RDM and show the relationship between all entities.
In this problem, we are interested in relational data mining (RDM): 1. Explain RDM 2. Give an application example of RDM and show the relationship between all entities.
What are the most popular routing protocols? What characteristics do routing protocols consider when determining the...
What are the most popular routing protocols? What characteristics do routing protocols consider when determining the best path?
Give me a concrete example of a research question where survey data would be the best,...
Give me a concrete example of a research question where survey data would be the best, and why. Then give me a different example where observational research makes more sense, and why.
Convert the Conceptual Model into Relational Model. Enter some
example data into the relations. Your job is to decide whether to
establish the relationship by posting a Foreign Key into the other
table or create a separate table for the relationship. Give reason
for your answer.
i need the answer to be written by computer pls. not hand
written
2. What is the most popular 3D printing technology in industry today? Why does the surplus portion in LOM process need to be crosshatched? Prototyping
QUESTION 1 What is the most common relationship within a relational database? Select the best answer from the following. One-To-One relationship. o One-To-Many relationship. Many-To-Many relationship. Zero-To-Zero relationship. QUESTION 2 What is an "entity'? Select the best answer from the following. An entity, for our purposes, is the same as a table in the database. An entity represents one of the columns in an individual table. There are no entities in a relational database. Entities are only part of NoSQL...
2 Assignment (30 marks) What are the most popular financial ratios regulators use to assess the adequacy of bank capital today? What is the difference between core (or Tier 1) capital and supplemental (or Tier 2) capital? How are regulatory capital rules likely affect a bank's choices among its assets it would like to acquire?
Draw a data structure diagram [Relational Logical
Model ] for the first Image in which patient data is given 2 image
is an example and the third one is the solution for the second
image
Relationshlp for all types of patients PATIENT RESPONSIBLE ls Cared For PHYSICIAN Patient ID Patient Name Admit Date Physician ID Attributes for all types of patlents Relationship for certain types of patients OUTPATIENT RESIDENT PATIENT Is Assigned BED Checkback Date Bed ID Date Discharged Attributes...
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