Question: What is the difference between the COUNT aggregate function and the SUM aggregate function?

What is the difference between the COUNT aggregate function and the SUM aggregate function?

Step by Step Solution

★★★★★

3.27 Rating (168 Votes )

There are 3 Steps involved in it

1 Expert Approved Answer
Step: 1 Unlock

COUNT returns the number of ... View full answer

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 Database Concepts Questions!

Q:

What is the difference between the aggregate production plan and the master production schedule?

Q:

What is the difference between a passive star and an active repeater in a fiber network?

Q:

What is the difference between specialization and generalization? Why is this difference not reflected in ER diagrams?

Q:

SELECT query, what is the difference between a WHERE clause and a HAVING clause? Give a complete SQL Oracle code example of each that is different from what is in the book and explain each showing...

Q:

Please answer 1,2,7,8,9 in detail In a SELECT query, what is the difference between a WHERE clause and a HAVING clause? 2. Explain why the following command would create an error and what changes...

Q:

In a SELFCT query, what is the difference between a WHERE clause and a HAVING claus Explain why the following command would create an trror and what changes could be to fix the error SELECI V CODE,...

Q:

what is the difference between the COUNT aggregate function and the SUM aggregate function? Give an example.

Q:

What is the difference between the COUNT aggregate function and the SUM aggregate function? Give a separate, complete SQL Oracle code example of each and explain each showing the result with data and...

Q:

In Oracle SQL Developer, you can work on the exercise focuses on HR, the sample human resources database you activated above. Before starting the exercise, explore the HR database schema, using these...

Q:

CREATE TABLE Agents ( agentNo VARCHAR(4), fName VARCHAR(20), lName VARCHAR(20), branchNo VARCHAR(4), salary NUMBER(8,2), dob DATE, address VARCHAR(50), city VARCHAR(30), county VARCHAR(30), state...

Q:

Zambia is an increasingly important market for pet food and has become a key source of sales expansion for dog and cat food manufacturers in recent years. This has been driven by growing disposable...

Q:

In this exercise, we illustrate the direct use of the Rao-blackwell Theorem. Let Y1,Y2.,YN be indepedent Bernoulli random variables with p(yilp)=pY(1-p)-Y!, yi=0,1. That is, P(Yi=1)=p and...

Q:

Question 1 IF you are going to borrow money in the future and want to hedge risk, you should enter an FRA in which you Recieve fixed, pay floating or recieve floating pay fixed

Q:

Explain the process of closing procurements performed as part of project procurement management, and describe the contents of a written notice of a closed contract

Q:

For each table, where possible, identify: a. The primary key b. A superkey c. A candidate key d. The foreign key(s) e. A secondary key

Q:

Create the ERD. (Look at the table contents. You will discover that an AIRCRAFT can fly many CHARTER trips but that each CHARTER trip is flown by one AIRCRAFT. Similarly, you will discover that a...

Q:

Create the relational diagram.

Q:

Exercise Problems #2, #3, & #4 will use relations similar to those in our semester project. Here are each of the relations for this homework: Stores( store id: integer, name: String, address: string)...

Q:

Score: 0 of 1 pt 6 of 7 (5 complete) HW Score: 44.64%, 3.13 of 7 pts Ja Next Question P18-17 (similar to) Question Help FE Operating exposure. Copy-Cat, Inc. has signed a deal to make vintage Nissan...

Q:

Esfandairi Enterprises is considering a new three - year expansion project that requires an initial fixed asset investment of $ 2 , 3 0 0 , 0 0 0 . The fixed asset will be depreciated straight - line...