Question

I’m working on a web app that tracks workers check in and check out times to certain rooms. I have multiple employees, multiple rooms, and check in and check out times for each room. Everytime a worker enters or leaves a room, they scan a QR code that has an ID variable in a URL for that room; I need to record the room, date/time, the employee name, and if it was in or out.

One way is to make one table like:

Room | Employee | Time | InOrOut |

The data will be entered into database like:

Mens Room, Joe, 6/29 7:30, In

Womens Room, John, 6/29 7:35, In

Mens Room, Joe, 6/29 8:00, Out

Womens Room, John, 6/29 8:05, Out

And I want to view it like:

Mens Room, Joe, 6/29 7:30, In

Mens Room, Joe, 6/29 8:00, Out

Womens Room, John, 6/29 7:35, In

Womens Room, John, 6/29 8:05, Out

I want to view data ordered by check in time, but have the following row be the next check out time for that room.

Answer 1

Create two look up table..

1. Employee {emp_id (pk), employee information}

2. Room {room_id (pk), room information}

And one reference table..

1. Room_Employee_log {log_id (pk), room_id (fk-Room), employee_id (fk-Employee), log_time, direction (in/out)}