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ERD Simple Question

B

b4u

Golden Member
Hi,

I'm reading some specification, and I found the following in the Entity-Relationship Diagram:



I'm not sure what does mean the "trace" marked inside the red circle.

From my reading, entity TBL_A references to zero or more instances of TBL_B. But that small "I" I don't see it for quite some time, and I can't find any reference to it, hence the quick question.


Thanks.
 
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