var sidebar_align = 'right';
var content_container_margin = parseInt('290px');
var sidebar_width = parseInt('270px');
Equivalence - E1 and E2 representations
Can any one help with the following question - "Present an example to show that an E1 representation need not be an E2 representation"
I know an E1 representation is dependency preserving - and E2 is data preserving in the form of a lossy join
But this is all i know....... has anyone any ideas of an example or could explain this to me ?