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What is the difference between referencing and joining?
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Answer Posted / ramachchandran
referencing:
ex: table A--> having primary key
table B--> having foreign key. now referencing means
this table B refers table A using the particular field u
mentioned as primary key and foreign key.
joining:
we can perform joining operation only if two table
have primary key and foreign key relationship. using this
keys we can perform inner, left outer,fullouter,right outer
joins.
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