In mysql, what kinds of association queries are there?

Alibaba cloud Q & A 2022-02-13 05:12:53 阅读数:313

mysql kinds association queries

Please elaborate .




Take the answer 1:

Cross connect (CROSS JOIN); Internal connection (INNER JOIN); External connection (LEFT JOIN/RIGHT JOIN); The joint query (UNION And UNION ALL); Full connection (FULL JOIN); Cross connect (CROSS JOIN)


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