What I'm not sure to undertand, when we create a table
with constraints, why we need to enable theses constraints,
on witch case would we doing this, the constrants are enable by default at creation, to create a table with disabled constraints it's okay, there may be a reason to doing this.
Anyways, I pass my exam and there was no question about
It's also large enough to keep a door open.
While there is a lot of good information in this book, there is also a lot of bad information! Consequently, you must already know the information to sort out the good from the bad!!
I think it best to stick with the Server Concepts Manual.