Listing 1. Example Database Table
Seminars
ID
title
cost
places_left
1
Python Programming
200
15
2
Intro to Linux
100
32
3
Socket Programming
475
7
4
Web Commerce
300
26
Attendees
name
seminar
paid
Albert
1
no
Albert
4
no
Beth
1
yes
Chuck
2
no
Dale
4
yes
Elaine
3
yes
Elaine
1
yes
Felix
4
no
