<span>The answer is RAM. Chat messages are most likely to be found in the RAM of the computer. It is Random Access Memory. </span><span>RAM is considered volatile memory, which means that the stored information is lost when there is no more power.</span>
Answer:
See explaination
Explanation:
#include <stdio.h>
#include <stdlib.h>
int main()
{
FILE * file_object;
char file_name[100];
char ch;
int characters=0, words=0;
printf("Enter source file name: ");
scanf("%s", file_name); //asking user to enter the file name
file_object = fopen(file_name, "r"); //open file in read mode
if (file_object == NULL)
{
printf("\nUnable to open file.file not exist\n"); //check if the file is present or not
}
while ((ch = fgetc(file_object)) != EOF) //read each character till the end of the file
{
if (ch == ' ' || ch == '\t' || ch == '\n' || ch == '\0') //if character is space or tab or new line or null character increment word count
words++;
else
characters++; //else increment character count this assures that there is no spaces count
}
printf("The file story.txt has the following Statistics:\n"); //finally print the final statistics
if (characters > 0)
{
printf("Words: %d\n", words+1); //for last word purpose just increment the count of words
printf("Characters (no spaces): %d\n", characters);
}
fclose(file_object); //close the file object
return 0;
}
For the view of Exercise 4.18, explain why the database system would not allow a tuple to be inserted into the database through this view.
For reference
For the database of Figure 4.12, write a query to find the ID of each employee with no manager. Note that an employee may simply have no manager listed or may have a null manager. Write your query using an outer join and then write it again using no outer join at all.
OUTER JOIN
select e.ID from employee e left outer join manages m on e.ID = m.ID
where m.manager_id is null;
NO OUTER
select e.ID from employee e where e.ID not in (select m.ID from manages m) or e.ID in (select m.ID from manages m where m.manager_id is null);
D. A spike of electricity. They are fast and have a short duration.
Answer:
The control unit of the CPU contains circuitry that uses electrical signals to direct the entire computer system to carry out stored program instructions.
Explanation: The control unit does not execute program instructions rather, it directs other parts of the system to do so.
