<span>There could be more than one item with the same expiration date, and primary keys must be unique.</span>
Answer:
mkdir -m 770 sales
Explanation:
The command mkdir is used to create a directory and the attribute or flag
-m is used to assign permissions on create a folder.
Example:
mkdir -m 770 sales
Create a folder with permissions 770 with name sales
<span>Which is not a component of a database that describes how data is stored?</span>
Answer:
See Explaination
Explanation:
#include <iostream>
#include <string.h>
using namespace std;
char *mixem(char *s1, char *s2);
int main() {
cout << mixem("abc", "123") << endl;
cout << mixem("def", "456") << endl;
return 0;
}
char *mixem(char *s1, char *s2) {
char *result = new char[1 + strlen(s1) + strlen(s2)];
char *p1 = s1;
char *p2 = s2;
char *p = result;
while (*p1 || *p2) {
if (*p1) {
*p = *p1;
p1++;
p++;
}
if (*p2) {
*p = *p2;
p2++;
p++;
}
}
*p = '\0';
return result;
}
It can pollute the whater which is the habit to many animals making it not safe fo be in the whater
