3 years ago

I am confused about joins in sql.

2 answers:

7 0

Joins are how you mix two tables of data.

Consider a pair of tables for people in an apartment building, and pets. Many people don't have pets. A few pets don't have people (the office fish, for example.)

A full outer join will get you all people and all pets, with nulls where there's nothing to line up.

WITCHER [35]3 years ago

5 0

Answer:

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