UNION, INTERSECT, and MINUS work properly only if relations are union-compatible, which means that the names of the relation attributes and their data types must be different. Select one: O a. True O b. False

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: Vendor order (vendor no, order no, vendor name, qty provided, price/unit) is a second normal form…

A: Vendor order data is an essential component of many business processes, and it is important to have…

Q: Why do the functional dependencies among a relation's attributes have to do with the primary key of…

A: Dear Student, The detailed answer to your question is given below -

Q: Type ISBN eBook RelationName2 (AttrName1) Primary key {AttrName1) Price Book N Order Hardcopy Date…

A: Here are the resulting relation tables from the given E-R diagram:Table Book:Primary Key:…

Q: Schema: Part(PartNo, PartName, VehicleType, UnitPrice, SalesPrice) Service(ServiceNo, PartNo,…

A: CREATE OR replace FUNCTION getprofit (    p_part_number IN NUMBER) RETURN NUMBER IS    l_part_name…

Q: Consider the following relations: Employee(E_id: integer, E_name: string, Age: integer, Salary:…

A: Referential integrity constraints are rules that ensure that the references from one table to…

Q: Vendor order (vendor no, order no, vendor name, qty provided, price/unit) is a second normal form…

A: Vendor order data is an essential component of many business processes, and it is important to have…

Q: is the number of attributes/fields in a relation. a. Degree b. Cardinality O c. Tuple d. Row

A: Degree: In DBMS, degree is the number of attributes or column present in the table Cardinality: In…

Q: 113. The template conclusion is a set of tuples that must be included in the relations in the…

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

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: A relation takes a students identification number at your college as input and outputs the students…

A: A relation takes a students identification number at your college as input and outputs the students…

Q: • Students(stulD, lastName, firstName, major, credits) • Faculty (facID, name, deptName, rank) •…

A: The original query attempts to retrieve the class numbers of all classes taught by a faculty member…

Q: Draw the arrow diagram for the following relation. The domain of relation is a group of four friends…

A: SOLUTION -     Given that in a given domain which consists of four friends, there is a relation H.…

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.