Question

When creating a self-join query in Design view, what is the benefit of giving one of the tables an alias? An alias is necessary because the tables will be overwritten or deleted. An alias is necessary because the query will use two sets of primary keys. An alias is helpful because having two copies of the same table can be confusing. An alias is helpful because both tables will be deleted after the query is completed.

Answer 1

c

Step-by-step explanation:

Answer 2

An alias is helpful because having two copies of the same table can be confusing.

Step-by-step explanation:

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