Question: State True or false Query processing is more efficient in a schema in a higher normal form than in a lower normal form, since the

State True or false

  1. Query processing is more efficient in a schema in a higher normal form than in a lower normal form, since the higher normal form causes smaller relations.
  2. Functional dependencies in a given relation cannot be changed after updates of tuples.
  3. If 1NF relation R does not have composite keys, then R is in 2NF.
  4. XY ZWV can be decomposed into X ZW and Y ZW.
  5. Denormalization can be performed from beginning of the database development.

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!

Q:

I have all answers written done, could you please check them for me? Thanks a lot! Truth or False: A data warehouse stores refined data, while a data lake stores raw data. ( F ) If I buy a cup of...

Q:

Activity tasks: Upload a file of your solutions. Rosie s Pet Care Center has decided that it is time for it to migrate its data to a relational database that can allow more efficient storage and...

Q:

Let A, B be sets. Define: (a) the Cartesian product (A B) (b) the set of relations R between A and B (c) the identity relation A on the set A [3 marks] Suppose S, T are relations between A and B, and...

Q:

Briefly describe ASCII and Unicode and draw attention to any relationship between them. [3 marks] (b) Briefly explain what a Reader is in the context of reading characters from data. [3 marks] A...

Q:

Portray in words what transforms you would have to make to your execution to some degree (a) to accomplish this and remark on the benefits and detriments of this thought.You are approached to compose...

Q:

Suppose that R(A, B, C) is a relational schema with functional dependencies F = {A, B C, C B}. (i) Is this schema in 3NF? Explain. [2 marks] (ii) Is this schema in BCNF? Explain. [2 marks] (b)...

Q:

Algorithms in Artificial Intelligence (or, the old name: Introduction to Algorithmic Decision Making) Part 1 Based on slides by David Sarne and Lirong Xia Course Tentative Schedule Introduction...

Q:

Unit 2: Designing the Operations Designing the operations of an organization or your department - precedes operational management. For .ll _ . example, suppose a wallet manufacture's mission is to '...

Q:

can someone solve this Modern workstations typically have memory systems that incorporate two or three levels of caching. Explain why they are designed like this. [4 marks] In order to investigate...

Q:

To be solved by DKetan. Using Chapter 7 of your text as a reference, define a standard cost and explain what constitutes the components of a standard cost. Describe the advantages and disadvantages...

Q:

The addition of a new accelerator is claimed to decrease the drying time of latex paint by more than 4%. Several test samples were conducted with the following percentage decrease in drying time....

Q:

Suppose f(x) = x - 8x - 20 (x9x10)x - 4 For what numbers x is f defined? (Give your answer as an interval in the form (*, *). Use the symbol co for infinity, U for combining intervals, and an...

Q:

Costly state verification means the same as Question 9 9 options: 1 ) specialized lending. 2 ) agency costs. 3 ) monitoring. 4 ) all of the above.

Q:

Holtzman Clothiers's stock currently sells for $30.00 a share. It just paid a dividend of $4.00 a share (i.e., D 0 = $4.00). The dividend is expected to grow at a constant rate of 3% a year. What...

Q:

analyse your own performance and set yourself objectives for the future.

Q:

3. Performance appraisals are intended to motivate employees towards greater productivity and improve communication/relations between managers and their team members. Explain why performance...

Q:

give examples of techniques used in the management of performance at work