Tagged Questions
2
votes
1answer
322 views
Design problem with auto-increment fields
I've made this design similar to my problem, it's not exact but it close enough to understand my problem:
http://i42.tinypic.com/bhbp5.jpg
Some cellular client frequently send their GPS position and ...
5
votes
2answers
526 views
What Is The Point of a Primary Key?
Why do I need to have a primary key on my database for it to function correctly? In every tutorial I read, you need to make the id key the primary key. What does the primary key do differently than ...
1
vote
2answers
253 views
serial field issue
Q:
I use a serial as a datatype for my primary keys in my tables.
I insert a lot of data then truncate these data one after one many times to test the data entry.
My question is:
Is there any ...
