Первичный ключ или другой столбец для лучшего способа
Hi, I have a table that is about title of invoice , i have a primary key that starts from 1 for my invoice i need a special number , i mean every invoice must have special number ,now tell me which one is more reasonable ? you think if i add a column and name it SpecialNumber and with it give the numbers to my invoice titles ? or i should use primary key? It must be like that go up one by one , and sometimes start might change somewhere. For example: 1 , 2 , 3 , 4 , 5 , 6 , 7 , 8 , 9 , ( I will change it ) , 50 , 51 , 52 , 53 , 54 , 55 , 56 , 57
Что я уже пробовал:
Мне нужно найти лучший способ и я еще ничего не нашел