can you make an aggregation or association in this erd

Q: Let relations r1(A, B, C) and r2(C, D, E) have the following properties: r1 has20,000 tuples, r2 has…

A: Block nested-loop join: The “r1” needs (20000/25)=800 blocks and “r2” needs (45000/30)=1500 blocks.…

Q: 3. What is the difference between aggregation, association and composition? (5 pts) Which one is the…

A: here in given question ask for difference between aggregation,association and composition.

Q: Who or what is an Abstract Data Type (ADT)? What exactly are the advantages of ADTs? When it comes…

A: ADT:- Abstract Data type (ADT) is a sort (or class) for objects whose conduct is characterized by a…

Q: Define union?

A: Please find the answer below :

Q: QUESTION 2: Design and implement design patten that can be used to create a counter to provide…

A: We can make a Sequence Generator reusable, and use it in multiple mappings. We might reuse a…

Q: What does the Weak Entity set entail?

A: Introduction: It is necessary to utilize a foreign key in conjunction with an attribute to establish…

Q: What are the two main principles that govern aggregation?

A: Given:- What are the two main principles that govern aggregation?

Q: d by what two key

A: IntroductionAggregation is the process through which one class (in the form of an entity reference)…

Q: Define and implement UML association, composition, aggregation with suitable example, separately.…

A: Given that define and implement UML association, composition, aggregation with suitable example,…

Q: A multi-level index can be created for : O Secondary. O Primary. O Any Type (primary, secondary,…

A:

Q: and R2 ( A ,C)  decomposition always lossless ?

A: Rules for loseless decomposition  ________________   1)Union of Attributes of R1 and R2 must be…

Q: Write in your own words description of following attributes of sets. Provide one example for each…

A: Defined the each attributes which are set Cardinality,Empty Set,Subset and Power Set

Q: 6. Every aggregation relationship is an association True False

A: We have to verify the statement given about the aggregation and association. Statement: Every…

Q: The two aggregation rules are:

A: INTRODUCTION: Aggregation rules specify how a metric's dimensions are considered when calculating…

Q: What are the two most important aggregation principles?

A: Introduction: Aggregation is the collecting or combination of smaller concepts or elements in…

Q: 8. Every aggregation relationship is an association

A: Required: Every aggregation relationship is an association

Q: 42. The aggregation relationship is represented in the UML notation by

A: This is about representation in UML.

Q: Suppose we have a relational database with five tables. table key Attributes S(sid, A) Sid T(tid, B)…

A: See solution in step No 2

Q: Aggregation is governed by what two key principles?

A: Introduction: Accuracy and Integrity — To achieve normal and stress/crisis reporting accuracy…

Q: List the advantages of 3NF over BCNF     Can always preserve functional dependencies     Ensures…

A: The correct answer to this question is option a) can always preserve functional dependencies.

Q: Can somebody help  Make SQL online chess game diagrams  - 1 piece. Class diagram with at least 6…

A: The purpose of a use case diagram in UML is to demonstrate the different ways that a user can…

Q: Classify the following into generalization (G), association (A), aggregation (AG), or composition…

A: Note : As per guidelines of the company, we can author 3 sub-parts of a question. Please repost…

Q: What is the Alignment of union?

A: That factor beginning is associated with the union address itself:- The pointer to a…

Q: Convolution and Pooling

A: CONVOLUTION AND POOLING: A basic convolutional neural network can be seen as a sequence of…

Q: Aggregation is which of the following? a. Expresses a part-of relationship and is a stronger form of…

A: Required:   Aggregation is which of the following? a. Expresses a part-of relationship and is a…

Q: Determine the relationships between aggregation, generalization, and association.

A: Aggregation: Aggregation is a type of association that occurs when a class is generated as a group…

Q: Define what the following are: -globalType Give the meaning of what the 4 members are: what are N…

A: Given, namespace globalType { const int N=10; const double RATE=7.50; int count=0; void…

Q: Suppose we have a relational database with five tables. table key Attributes S(sid, A) Sid T(tid, B)…

A: As per our guidelines, we are supposed to answer only 1st three parts. Kindly repost the remaining…

Q: 5.6 LAB - Implement independent entity (Sakila) Implement a new independent entity phone in the…

A: First check whether phone_id column exists in your customer, staff, and store table or not. If…

Q: What are the two aggregation principles?

A: The aggregation principles defines the sum of a set of multiple measurements is more stable and…

Q: Define Equi Join

A: SQL joins: SQL joins are used to join the two relations or two tables of the database and these…

Q: Assuming postgres is connected (No need to include that part of the code) A) Define a sequilize…

A: The database is the collection of information related to the organization, customer, or any group of…

Q: 1. The table shows a class list for the XYZ UNIVERSITY, convert this user view to a set of 3NF…

A: Convert the user view to 3NF relations:   The class list of XYZ UNIVERSITY for First semester is…

Q: Let R(a,b,c), S(a,b,c), and T(a,b,c) be three relations. Write one or more Datalog rules that define…

A: Note- as per bartleby guidelines only one question's answer can  be given at time. Kindly find below…

Q: transitive dependency.

A: Actually, Transitive dependency is used in database. The answer has given below:

Q: What are the two basic principles of aggregation?

A: Aggregation in general is the combination or collection of smaller concepts or parts.

Q: Where do entity supertype stored at.

A: supertype entity in the data model with definition , examples, and explanation.

Q: 40. Every aggregation relationship is an association O True O False

A: Association and Aggregation are types of relationships that exists between two classes.  It is used…

Q: A _____ relationship exists when an association is maintained within three entities.     strong…

A: Here in this question we have to find if a relation is there with three entity's.so what would we…

Q: Give pseudocode for computing a join

A: Algorithm for Natural JoinFor doing Natural join, the relation R(A, B) with S(B, C), it is required…

Q: Draw the inorder diagram of this bts

A: Algorithm: Traverse the left sub tree. Visit the root. Traverse the right sub tree.…

Q: Explain how the representation of weak entities differs from the representation of strong entities

A: The entity is a representation of an object, or table, or thing in a database management system.…

Q: A multi-level index can be created for : Secondary. Primary. Clustering. Any Type (primary,…

A: Indexing: An index in a DBMS is similar to an index in a book. The purpose is to make it easier to…

Q: In aggregation, what are the two fundamental principles that govern it?

A: Given:- In aggregation, what are the two fundamental principles that govern it?

Enhanced ER Model

The enhanced ER model is an abbreviation for Enhanced Entity-Relationship (EER) model. As you know, the entity-relationship (ER) model is a pictorial illustration of the relationship between various entities of a domain. In the case of a large amount of data with multiple interrelated entities, the ER diagrams become complex and tough to interpret. For such cases, the need for enhancement in the ER model was observed, and thus, the EER model was designed.