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INTERSECT
Applies to ✅ Open Source Edition ✅ Express Edition ✅ Professional Edition ✅ Enterprise Edition
INTERSECT is the operation that produces only those values that are returned by both subselects. By default, this removes duplicate rows. Use INTERSECT ALL in order to retain them, and require duplicates to appear in both subqueries.
SELECT ID FROM BOOK INTERSECT ALL SELECT ID FROM AUTHOR
create.select(BOOK.ID).from(BOOK)
.intersectAll(
create.select(AUTHOR.ID).from(AUTHOR))
.fetch();
Dialect support
This example using jOOQ:
select(BOOK.ID).from(BOOK).intersect(select(AUTHOR.ID).from(AUTHOR)).orderBy(BOOK.ID)
Translates to the following dialect specific expressions:
ASE, Aurora Postgres, CockroachDB, DB2, Derby, DuckDB, Exasol, H2, HSQLDB, Hana, Informix, MariaDB, MySQL, Oracle, Postgres, SQLDataWarehouse, SQLServer, SQLite, Snowflake, Sybase, Teradata, Trino, Vertica, YugabyteDB
SELECT BOOK.ID FROM BOOK INTERSECT SELECT AUTHOR.ID FROM AUTHOR ORDER BY ID
BigQuery
SELECT BOOK.ID FROM BOOK INTERSECT DISTINCT SELECT AUTHOR.ID FROM AUTHOR ORDER BY ID
ClickHouse
SELECT t.* FROM ( SELECT BOOK.ID FROM BOOK INTERSECT DISTINCT SELECT AUTHOR.ID FROM AUTHOR ) t ORDER BY ID
MemSQL
SELECT t.* FROM ( SELECT BOOK.ID FROM BOOK INTERSECT SELECT AUTHOR.ID FROM AUTHOR ) t ORDER BY ID
Access, Aurora MySQL, Firebird, Redshift
/* UNSUPPORTED */
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