SQL Cheat Sheet/Cross join

Return the Cartesian product of two sets.

Section: Joins

Cross join

sql
sql
SELECT c.color, s.size
FROM colors c
CROSS JOIN sizes s;
Explanation

Cross joins multiply rows, so use them deliberately.

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Inner join two tables
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Left join
Keep all rows from the left table and match rows from the right table.
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Right join
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Full outer join
Return matched and unmatched rows from both tables.
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Self join
Join a table to itself.
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Select all columns
Return all columns from a table.