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SELECT DISTINCT

Applies to ✅ Open Source Edition   ✅ Express Edition   ✅ Professional Edition   ✅ Enterprise Edition

The DISTINCT keyword can be included in the method name, when constructing a SELECT clause, to remove duplicate tuples from the projection.

SELECT DISTINCT BOOK.TITLE FROM BOOK
Select<?> select1 = create.selectDistinct(BOOK.TITLE).from(BOOK).fetch();

Dialect support

This example using jOOQ:

selectDistinct(BOOK.TITLE).from(BOOK)

Translates to the following dialect specific expressions:

-- All dialects
SELECT DISTINCT BOOK.TITLE
FROM BOOK

(These are currently generated with jOOQ 3.18, see #10141), or translate your own on our website

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