- Any two tuples in a relation have different values on at least one
attribute. - Tuples belonging to the same relation are stored in arbitrary order.
- The programmer can specify the tuples in the same relation to be displayed in a particular order according to the values of one or more attributes.
I would say… True, False, True….
I would like to hear your guys opinions because you people have been in this field longer than I have 🙂
Thank you guys in advance 🙂
I don’t know of any RDBMS that forces the developer to have non-duplicate rows (tuples). So, in practice, the answers are False, True*, and True.
*Again, in practice, the answer to #2 might be False in some circumstances depending on the RDBMS, but it doesn’t have to be and the developer should assume that #2 is True.