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Bess [88]
2 years ago
10

Using the notation exemplified in following question , list a set of tables and attributes (and identify keys) to represent the

following data:
In a very simple school database, students have a student ID and a name. Each student has only one advisor (who has an ID and a name). Each advisor advises many students. Students take many courses. Each course has an ID, a name, and the number of credits. The database also stores when a student took a course (the semester/year) and his/her final grade for that course (on that semester).

Computers and Technology
1 answer:
Paha777 [63]2 years ago
6 0

Answer:

Entities are - Students, CourseList, Advisor and CourseSelection.

Explanation:

The database is structure is designed using Crow Foot Database Notation as attached

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You are running your warehouse using Autonomous Data Warehouse (ADW) service and you noticed that a newly configured batch job i
Phantasy [73]

Answer:

<u>C. The new batch job is connected to the LOW consumer group.</u>

Explanation:

<em>Remember</em>, one of the main characteristics of the LOW consumer group <u>database service</u> is that queries would run serially.

Since in this case, we are told that the newly configured batch job is always running in serial, it most likely would be because the new batch job is connected to the LOW consumer group; as queries are designed to always run serially.

6 0
3 years ago
Write a program that: Takes the list lotsOfNumbers and uses a loop to find the sum of all of the odd numbers in the list (hint:
Alika [10]

Answer:

Following are the code to this question:

#include <iostream>//defining header file

using namespace std;

int main()//defining main method

{

int x[]={2,3,4,6,7,8,9,1,11,12};//defining 1-D array and assign value

int i,sum=0;//defining integer variable

for(i=0;i<10;i++)//defining loop for count value

{

   if(x[i]%2==1)//defining if block to check odd value

   {

       sum=sum+x[i];//add value in sum variable

   }

}

cout<<sum;//print sum

return 0;

}

Output:

31

Explanation:

In the above-given program, an integer array "x" is declared that holds some integer values, and in the next line two integer variable "i and sum" is defined which is used to calculate the value.

In the next line, a for loop is declared, that counts all array value, and it uses the if block to check the odd value and add all the value into the sum variable.

5 0
2 years ago
Two technicians are discussing the lower-end operation of an engine. Technician A says that power loads result from the expansio
notka56 [123]

Answer:

It's Both are correct.

Explanation:

I've taken test

6 0
2 years ago
Assume that word is a variable of type String that has been assigned a value. Write an expression whose value is a String consis
DerKrebs [107]

Answer:

Follwing is the python code:-

word=str(input("Enter the string\n"))

new=word[0:3] #expression for first three characters of the string.

print(new)

Output:-

Enter the string

chandelier

cha

Explanation:

The expression word[0:3] is for extracting first three characters form the string.

word[0:3] = It extracts characters from index 0 to index 2 it does not include 3.3 is excluded.

7 0
2 years ago
The assignment symbol can be combined with the arithmetic and concatenation operators to provide augmented assignment operations
uranmaximum [27]

Answer:

Yes, we can.

Explanation:

We can combine with the arithmetic and the concatenation operators to provide augmented assignment operations in the programming language Python.

This mean we can abbreviate expressions like n = n + 1

For example:

n += 10 this is equal to n = n + 10

n += "example" this is equal to n = n + "example"

In this example we have

variable = variable operator expression equal to variable operator = expression.

These arguments are often used in Python's loops.

3 0
3 years ago
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