Thanks Avi,
I begin to remember now some of the notes i wrote to 'remind' me about this topic before I got busy with
SCJP Cert. But because i have 2MB of memory in my head, i forgot where i put those notes and articles!
Yes, I remember now that i read once about the SQL standard '92' and how the big ones (Oracle, MS ..etc) don't implement it fully, rather they keep their 'own' way. Even I read about 'Object oriented' way that exist 'somehow' in PstgreSQL, but no one else bothered about it which it said it would make database design and OO developer life much easier. Ok let's back to the 'real' life.
Mmmm, I don't think i have something essential to add about the 'real' life as you explained it very well.
Jeanne 'filtered' some doubts in my mind and you have answered all that remained.
I can see very clear now and already made my choice. And yes, i need the 'Good Luck' so,
Muchas Gracias Avi