how do I draw a ERD with cardinality? I am still in school and I am not sure how to go about it. I just need a sample idea Thanks
+1
A:
Depends on the notation you're using. I find that putting something like "0..*" or "m" or "1" at one end of the relationship link, near the table it applies to, to denote "zero or more" or "m" or "exactly 1 required" communicates my intent pretty well.
duffymo
2009-05-30 21:51:06