Is it mandatory to give a cardinality ? If cardinality is
not given what will happen?
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Answer / tb
Cardinalities express the maximum number of instances of an
entity A that can be associated to corresponding instances
in another entity B.
Cardinalities need to be defined while setting up joins in
a universe. If not, we encounter join path problems such
as loops and traps, and joining tables will result in
Cartesian products.
| Is This Answer Correct ? | 3 Yes | 2 No |
Answer / rndp99
yes we have to give cardinality to avoid join path problems
and to avoid cartesian product
| Is This Answer Correct ? | 2 Yes | 1 No |
Answer / manik
If cardinality not set between table in universe we got error while we run report "without cardinality"
| Is This Answer Correct ? | 0 Yes | 0 No |
Answer / guest
Yes. If the cardinalities are not set, we cannot detect
loops.
| Is This Answer Correct ? | 1 Yes | 3 No |
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