Consider the relations Courses1. Courses2. Enrollment and Students B Hary L (1) Give the results of the following relational algebra expressions: a) Tit (- Hay O Computing (Courses2)) b) Coursesl-Courses2 AB HC Ties THE HE AL c) Courses Courses2 d) Courses Enrollment

Q: 36. In a relation a. Ordering of rows is immaterial b. No two rows are identical c. a and b both are…

A: Given that, 36. In a relationa. Ordering of rows is immaterialb. No two rows are identicalc. a and b…

Q: Let R(A,B,C,D) be a relation with the set of functional dependencies F={AB->C,C->D). Decompose the…

A: Answer is

Q: Consider the bank database of Figure 15.14, where the primary keys are underlined, and the following…

A: Explanation:   The below expression performs the theta join on the smallest amount of data…

Q: For each of the following pairs of expressions, give instances of relations thatshow the expressions…

A: Right Outer Join: When two tables are joined using Right Outer Join, all the records from the second…

Q: Solve only 4,5,6 . Please fast.   Consider the following scheme Supplier (sid, Sname, rating)…

A: Solution :  Given  Supplier (sid, Sname, rating) Parts (Pid, pname, color) Catalog (sid. Pid, cost)…

Q: Three relations are given to you, R1(A, B, C), R2(C, D, E), and R3(E, F). The primary keys for R1 ,…

A: a)  Consider the given three relations r1, r2, and r3. • In relational algebra joins exhibit the…

Q: Consider the employee database of Figure 3.19. Give an expression in SQL foreach of the following…

A: Inserting some record values in the works table, after insertion the works table will apear as given…

Q: Faculty (facultyNum, deptNum, officeNum, rank, dateHired, salary) ● Where: officeNum deptNum rank,…

A: Solution: I have solved according to the given instructions.

Q: Database system concept 7th based on Exercise problems 3.9, 3.10, 3.16, and 3.17) Consider the…

A: 1. Find the ID of each employee who does not work for “First Bank Corporation”. SQL Query: select ID…

Q: Select all binary relation properties that apply to the following relation: Equal magnitude: |x| =…

A: An algorithm is a stepwise that procedure is  for solving a specific problem in a  number of steps.…

Q: Consider the relational schema below: Students(sid: integer, sname: string, major: string)…

A: Given relation schema contains three tables that are Students, Courses and Enrollments. The…

Q: Consider the relational schema for a library system as given below: Member (mem _no, name, dob)…

A: Answer i)- select * from Member m where m.mem_no not in(select b.mem_no from Borrowed b);     Answer…

Q: Consider the relations Courses1, Courses2, _Enrollment and Students. Courses1 cid ename Al Calculus…

A: We are given the relations Courses1, Courses2, Enrollment and Students. We have to give results of…

Q: Defined the relational algebra operations as follows: SELECT (p, R) is equivalent to σp(R)…

A: we have to write a SQL statement for the given relational algebra. PROJECT (<STUD_ID,…

Q: J 1 Let R(A, B, C, D, E, F) be a relation schema, and let S = {A → B, BC → D, E → C, D →A, B → D} be…

A: The Nonadditive join test for binary decomposition is used to determine if a decomposition is…

Q: it says relation room doesnt exist.

A: - We need to solve the issue that relation room does not exist.

Q: Consider the employee database of Figure 2.17. Give an expression in the relational algebra to…

A: a. The name of each employee who lives in the city “Miami”: Πname (σ city = "Miami"(employee))

Q: If we had another relation, staff, which was union compatible with faculty, what would the following…

A: ::Solution :: Option C is correct  All tuples of the instructor relation along with all tuples of…