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Harrizon [31]
3 years ago
12

A key field is used to _____. enter a password uniquely identify records merge data list the most important information

Computers and Technology
2 answers:
Arada [10]3 years ago
6 0

Answer:

Explanation:

We can use a key field as a unique field, we can make reference with other tables, each table only can have one key field, and some programs like access can make this field automatically, if we want to have a correct key field we must follow these steps:

  • never be empty
  • the value never must change
  • The value must be unique
Artist 52 [7]3 years ago
6 0

Answer:

uniquely identify records !!!!

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6. According to camp policy, staff members need to be at least 23 years old to transport students. Dean now wants to determine h
Kamila [148]

Answer:

This seems to be related to MS Excel, here we will discuss the related formula:

<u>=IF(VLOOKUP("Adam Moriarty",$B$3:$C$5,2)>23,"Yes","No")</u>

the name can also be written in adjacent to J2 cell i.e. I2 and its reference to be used in vlookup primary key as follows:

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Explanation:

We have used simple IF function combined with VLOOKUP function to reference this formula to the table of names and ages of the members (here the table is $B$3:$C$5 and ages are mentioned in 2nd column of the table)

please find attached screenshot for clarification

6 0
3 years ago
Suppose you have a 12-hour clock on a very fancy chair (noon is 12 PM and midnight is 12 AM). Write a C++ program that reads in
agasfer [191]

Answer:

#include<iostream>

#include<cmath>

#include <ctime>

using namespace std;

int main()

{

       time_t t = time(NULL);

tm* timePtr = localtime(&t);

cout << "seconds= " << (timePtr->tm_sec) << endl;

cout << "minutes = " << (timePtr->tm_min) << endl;

cout << "hours = " << (timePtr->tm_hour) << endl;

cout << "day of month = " << (timePtr->tm_mday) << endl;

cout << "month of year = " << (timePtr->tm_mon)+1 << endl;

cout << "year = " << (timePtr->tm_year)+1900 << endl;

cout << "weekday = " << (timePtr->tm_wday )<< endl;

cout << "day of year = " << (timePtr->tm_yday )<< endl;

cout << "daylight savings = " <<(timePtr->tm_isdst )<< endl;

       cout << endl;

       cout << endl;

       cout << "Date     " <<(timePtr->tm_mday)<<"/"<< (timePtr->tm_mon)+1 <<"/"<< (timePtr->tm_year)+1900<< endl;

       cout << "Time     " << (timePtr->tm_hour)<<":"<< (timePtr->tm_min)<<":"<< (timePtr->tm_sec) << endl;  

   return 0;

}

Explanation:

4 0
3 years ago
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mina [271]
Number 1 and 4 are the same? I agree with your answers.
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