Answer:
The correct option is option 4 from the options indicated below:
Explanation:
The options are as given below
1-SELECT customer# FROM customers
UNION
SELECT customer# FROM orders;
2-SELECT customer# FROM orders
MINUS
SELECT customer# FROM customers;
3-SELECT customer# FROM orders
INTERSECT
SELECT customer# FROM customers;
4-SELECT customer# FROM customers
MINUS
SELECT customer# FROM orders;
Option 1 is not correct as it will provide the list of all the customers whether they have placed order or not.
Option 2 is not correct as it will provide the list of customers who have placed order but are not in the customers table. This will return the empty records.
Option 3 is not correct as it will provide the list of customers who have placed the order.
Option 4 is correct as it will provide the list of customers from the CUSTOMERS table which are not in the Orders table. thus the list of customers who have not placed the order yet.
In the case of three-tier architecture, the tiers are as follows: Presentation tier (also known as the user interface or the client application) Business logic tier (also known as the application server) Data storage tier (also known as the database server)
This was on google i take no credit for this work
Btw I don´t know if this is what u want
Answer:
FALSE
Explanation:
The exit function is used to terminate or halt the process.
Syntax-
void exit(int status)
Exit function (exit()) can be used in any function not only main() and it will terminate your whole process.
<u></u>
<u>Example-</u> C Program
#include<stdio.h>
#include <stdlib.h>
// function declaration
float exitexample ( float x );
// Driver program
int main( )
{
float a, b ;
printf ( "\nEnter some number for finding square \n");
scanf ( "%f", &a ) ;
// function call
b = exitexample ( a ) ;
printf ( "\nSquare of the given number %f is %f",a,b );
/*This will not printed as exit function is in exitexample() function*/
}
float exitexample ( float x ) // function definition
{
exit(0); //exit function
float p ;
p = x * x ;
return ( p ) ;
}
Answer:
II and III are correct
Explanation:
The software that the question is referring to here is the computer-aided design (CAD) software called Inventor by Autodesk.
I. Hold the middle mouse button to rotate the model on the screen. False
This will pan the model instead of rotating.
II. To pan the model, hold down the Ctrl key and the middle mouse button. True
Some versions need you to hold down the ctrl key and the middle mouse button to pan, while others is just the middle mouse button then you drag the mouse around. The middle mouse is the scroll wheel on most mice today. You basically, just hold down the scroll wheel as you move the mouse to pan the model.
III. Use the mouse scroll wheel to zoom in and out of the model. True
To zoom in or out, one will need to rotate the mouse scroll wheel forward to zoom in and backward to zoom out.
