Question: Letr be a relation with schema (A, B, C, D, E) and s be a relation with schema (D, E, F, G). Relation r has

Letr be a relation with schema (A, B, C, D, E)

Letr be a relation with schema (A, B, C, D, E) and s be a relation with schema (D, E, F, G). Relation r has 11 tuples, and relation s has 7 tuples. What is the maximum number of tuples in the following expression? S-r 4 18 11 The statement is illegal

Step by Step Solution

There are 3 Steps involved in it

1 Expert Approved Answer

Step: 1 Unlock blur-text-image

Question Has Been Solved by an Expert!

Get step-by-step solutions from verified subject matter experts

Step: 2 Unlock

Step: 3 Unlock

Students Have Also Explored These Related Databases Questions!

Consider a relation with schema R(A, B, C, D, E) and FDs AB C, C D, D B, D E a) Indicate all the BCNF violations. Do not forget to consider FDs that are not in the given set, but follow from them....

Distributed Systems Einstein has established that there is no universal time. For earth-based computer systems discuss how events might be assiganed a time stamp which is reasonably close to...

2. (12 pts) Given a relation schema R-(A, B, C, D, E, G) and a set of functional dependencies F-{A->B, AB->E, A->E, G->C) (1) Find (AC) in F (2) Find a candidate key for relations on schema R, and...

Suppose we have a relation schema R(A, B, C, D, E, F, G) and a set of functional dependencies H = {BCD A, BC E, A F, FG, C D, A GA B}. Decompose R into 3NF by using the 3NF synthesis algorithm. Show...

Q:Question:C) (A,D,E). 7.2 List all non trivial functional dependencies satisfied by the relation of Figure 7.18 Problem #1 7.1 Suppose that we decompose the schema R=(A, B, C, D, E) into [ (A, B,...

Consider the relation scheme R- A, B, C, D, E, F with the following set of functional dependencies: a. Is the decomposition of R into RI B, C, D, E and R2 (A, B, C, F a lossless decomposition?...

1] Consider the following relation: CAR_SALE(Car#, Date_sold, Salesman#, Commission%, Discount_amt) The primary key is {Car#,Salesman#} because a car can be sold by multiple salesmen. The...

Letr be a relation with schema (A, B, C, D, E) and s be a relation with schema (D, E, F, G). Relation r has 11 tuples, and relation s has 7 tuples. Attribute A has 4 distinct values, and attribute B...

Letr be a relation with schema (A, B, C, D, E) and s be a relation with schema (D, E, F, G). Relation r has 11 tuples, and relation s has 7 tuples. How many attributes are in the following...

Wentowrth Manufacturing is considering three capital investment proposals. At this time, Wentworth only has funds available to pursue one of the three investments. Equipment A Requirement Which...

A Sherwood Company employees' EI total premium payable for the year is $20,000. The employer's provide short-term disability to their employees which reduces the premium rate to 1.262 for EI...

Which of the following is not a money market instrument? Multiple Choice Commercial paper with 1 8 0 days until maturity A repurchase agreement, backed by U . S . government securities , with a 1 -...

Which of the following statements is false? A. When a firm is subject to graduated income tax rates, insurance can produce a tax savings if the firm is in a higher tax bracket when it pays the...

KEY QUESTION Use the following demand schedule to determine total revenue and marginal revenue for each possible level of sales: a. What can you conclude about the structure of the industry in which...

KEY QUESTION Using diagrams for both the industry and a representative firm, illustrate competitive long-run equilibrium. Assuming constant costs, employ these diagrams to show how ( a ) an increase...

KEY QUESTION Assume the following cost data are for a purely competitive producer: Total Average Average Average Marginal Product Fixed Cost Variable Cost Total Cost Cost 0 1 $60.00 $45.00 $105.00...