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USING clause
Applies to ✅ Open Source Edition ✅ Express Edition ✅ Professional Edition ✅ Enterprise Edition
All of INNER JOIN, OUTER JOIN, SEMI JOIN, ANTI JOIN require a join predicate.
One way to supply this join predicate is the USING clause, which allows for specifying a set of column names that are common to both tables, based on which to form a join predicate. Assuming we called our AUTHOR.ID column AUTHOR.AUTHOR_ID instead:
SELECT * FROM AUTHOR JOIN BOOK USING (AUTHOR_ID)
create.select()
.from(AUTHOR)
.join(BOOK).using(AUTHOR.AUTHOR_ID)
.fetch();
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