SAMPLE VALUE [200128 Smith Accounting ACCT SAMPLE VALUE 199876 Jones Marketing MKTG Marketing 4378 Business Admin Gentry SAMPLE VALUE |198648 Ortiz Marketing MKTG Marketing 4378 Business Admin Tillery SAMPLE VALUE 223456 McKulski Statistics MATH Mathematics 3420 Arts & Sciences Chen ATTRIBUTE SAMPLE NAME VALUE [211343 Stephanos Accounting STU_NUM STU_LNAME STU_MAJOR DEPT CODE DEPT NAME DEPT PHONE 4356 COLLEGE_NAM Business ACCT Accounting Accounting 4356 Business Admin Grastrand Admin ADVISOR_LNA Grastrand ME ADVISOR_OFFI T201 T201 T228 T356 331 CE ADVISO R PIDOITorre Ruilding Torre Duilding Torre Duilding Torre Duilding liones Duilding

Q: What are three indications that a surrogate key should be constructed for the primary key of a…

A: Surrogate key is unique key and also called as synthetic primary key. Surrogate key holds anonymous…

Q: How do we decompose this relation to solve this problem?

A: An entity is an object in the real world with an independent existence that can be differentiated…

Q: ID name Courses M semester Teaches N ID name Professors Convert the above ER diagram to relations in…

A: SOLUTION -From the above Entity Relationship Diagram, we can identify three tables. They are1)…

Q: database Define functional dependency with example.

A: Database:- Databases can be used to store, manage, and access any kind of data. They gather data on…

Q: What are the conditions under which an attribute of a relation may have a changeable length?

A: Introduction: An attribute is defined as a trait or characteristic found in a person, a place, or an…

Q: Read the following business rules carefully and use common sense when necessary to come up with a…

A: Our model accounts for various core entities within the healthcare clinic, including patients,…

Q: An ID-dependent Weak Entity typically result in a table with a compound primary key with at least…

A: A weak entity in a relational database is one that can't be uniquely identified by just its…

Q: Describe the concept of functional dependency.

A: Step 1:- A functional dependency is related to the DBMS.DBMS stands for Database Management…

Q: What is the functional relationship between the main key and a non-key attribute as explained by…

A: The connection between any two characteristics is known as functional dependency. For example, there…

Q: Normalise the following relation to remove modification anomalies showing all steps for 1NF, 2NF and…

A: An relational database contains tables which are also known as relations. A relation has tuples(or…

Q: What is the reason for normalised relations may not compromise an efficient physical implementation…

A: Normalized relations may also not jeopardize the efficiency of the simple geometric structure, as…

Q: The type of algorithm in which decomposition of relation schema is constructed from other specific…

A: Certain algorithms are used to create relational decomposition from a set of relationships in…

Q: aaa A d N R T bbb B N S CCC Convert the above ER diagram to relations in the normal manner, and then…

A: An ER diagram is an visual representation of the entities, attributes and relationships within a…

Q: Describe three scenarios when a surrogate key should replace a relation's primary key.

A: requirements for suggesting a substitute key Three circumstances indicate that a relation's primary…

Q: Create ERD or EERD of local school library with these requirements, and write relation schema…

A: answer is

Q: Draw tables to show the 3NF and dependencys

A: the tables in Third Normal Form (3NF) with their dependencies: Table 1:…

Q: I have to generate a set of relations and functional dependencies which IS in BCNF, but IS NOT…

A: Answer is given below .

Q: How to Doing "Update-Database" within your code in Entity Framework.

A: The databases used by non-development environment applications frequently need to be updated. After…

Q: see of representing relations as a graph or a matrix? What is one way that you might use either a…

A: A graph matrix is a square array that has one row and one column for each node in the graph. Node I…

Q: A_ _is a property of the entire relation, rather than of the individual tuples in which each tuple…

A: 1) A key in DBMS is an attribute or a set of attributes that help to uniquely identify a tuple (or…

Q: Consider a relation (A, B, C, D, E, F, G) with functional dependencies as given below: ABC D ED-F…

A: Consider the following relation with set of functional dependencies: R (A, B, C, D, E, F, G)…

Q: Which is the process of breaking a relation into multiple relations: a. Functional dependency b.…

A: This mcq is related to RDBMS.

Q: Newbie to relation schemas…took this example from a textbook.     How would I convert the following…

A: Normal Form: In the context of relational database design, normal form refers to a set of guidelines…

Q: Explain the relationship between the primary key of a relation and the functional dependencies that…

A: Introduction: A primary key is a database characteristic that uniquely identifies a record.

Q: Describe three situations in which a substitute key for the main key of a relation should be…

A: Given: Indicators that point to the existence of a surrogate keyThere are three circumstances that…

Q: What are three signs that a surrogate key should be generated for the primary key of a relation…

A: A surrogate key is one that serves no practical or operational purpose. It's "artificial" and made…

Q: Question 3 a) Normalize table 1 to a set of Third Normal Form (3NF) relations. Your answer should…

A: Primary key for the given relation is, (PatientID , DiseaseID) The Fd's possible are PatientID…

Q: Create an unnormalized relation using student and class entities.

A: Here, we have to create an unnormalized relation using student and class entities.

Q: Following relation schema exists : EMPLOYEE (EMP_ID, EMP_NAME, DEPT, GRADE, SALARY, AGE, ADDRESS).…

A: Answer: Given  EMPLOYEE (EMP_ID, EMP_NAME, DEPT, GRADE, SALARY, AGE, ADDRESS). Functional dependency…

Q: What is the reason that normalized relations may not compromise an efficient physical implementation…

A: Normalized relations don't always jeopardize the performance of the simple geometric structure,…

Q: Please show the non-trivial functional dependency of the question below:   Timesheet (StaffID,…

A: According to the information given:- We have to define non-trivial functional dependency and display…

Q: What are three criteria that indicate that a surrogate key for a relation's main key should be…

A: Surrogate key: It is a key that does not have any contextual meaning but is used to identify the…

Q: 1. Describe entity constraint in your own words  2. what type of key satisfies the uniqueness…

A: This constraint says that the primary key of a table can never be a null value. The primary key is…

Q: It is important to build a hybrid merge-join technique in order to accomplish the task of combining…

A: The hybrid merge-join technique is a method used in database systems to combine two relations that…

Q: just answer true/false  a]Disjointness means that every entity of a supertype must be an entity in…

A: As per bartleby guidelines we need to answer only the first 3 subparts in a question. a]Disjointness…

Q: under what three circumstances does it become necessary to generate a surrogate key in place of the…

A: This question comes from Database Management System which is a paper of Computer Science. Let's…

Q: reate a dependency diagram based on this ERD.  Decompose the relation in the resulting dependency…

A: If  а  relаtiоn  is  in  3NF,  it  meаns  thаt  the  dаtаbаse  is  in  the  2NF  аnd  there  аre  nо…

Q: Multivalued dependencies are avoided in relation schema when the relation schema conforms to – (a)…

A: Answer: Multivalued dependencies are avoided in relation schema when the relation conforms to 4NF.…

Q: Lab 3: Normalization Assignment: Problem #11 from Chapter #6. (Be sure to note that this is PROBLEM…

A: The relation schema for the table structure is given below, CHARTER (CHAR_TRIP, CHAR_DATE,…

Q: Suppose you are going to design an instant messaging application called Telegraph. Telegraph is…

A: It is defined as a collection of information that is organized so that it can be easily accessed,…