weak relationship - bila ada connection between strong and strong entities. (putus-putus) strong relationship - bila ada connection between strong entity with weak entity (solid line) strong entity - can exist on its own weak entity - need strong entity to exist (contoh, bridge entity)
You can as the constraint is disjoint. “Or” in the 2nd argument means disjoint. “And” means non-disjoint. D and O is another representation of the constraints. The method in the video is what’s covered based on the connolly’s textbook.
One and only video in the whole of youtube that uses box to specify entity and attributes together. THANK YOU SO MUCH FOR MAKING THIS VIDEO!
Thank you Sir
may i ask if the application table is considered a bridge entity or not?
sir macam mane nak bezakan strong relationship dgn weak relationship..masa mana perlu guna garis lurus tu atau garis putus2 tu.. saya keliru yg tu ?
weak relationship - bila ada connection between strong and strong entities. (putus-putus)
strong relationship - bila ada connection between strong entity with weak entity (solid line)
strong entity - can exist on its own
weak entity - need strong entity to exist (contoh, bridge entity)
love it ❤❤❤
Thank you so much☺...
Thank you! This helps a lot!!
Sir can i divide supervisor and manager using d ? Can u do the explanation for eerd tht containts d and o
You can as the constraint is disjoint. “Or” in the 2nd argument means disjoint. “And” means non-disjoint. D and O is another representation of the constraints. The method in the video is what’s covered based on the connolly’s textbook.