ALTER TABLE .. DROP FOREIGN KEY
Applies to ✅ Open Source Edition ✅ Express Edition ✅ Professional Edition ✅ Enterprise Edition
A FOREIGN KEY constraint can be dropped from the table using the ALTER TABLE's DROP FOREIGN KEY clause:
// Drop specific types of constraints
create.alterTable("table").dropForeignKey("fk").execute();
Dialect support
This example using jOOQ:
alterTable("t").dropForeignKey("c")
Translates to the following dialect specific expressions:
ASE, Access, Aurora Postgres, CockroachDB, DB2, Derby, Exasol, Firebird, H2, HSQLDB, Hana, Informix, Oracle, Postgres, Redshift, SQLDataWarehouse, SQLServer, Snowflake, Sybase, Teradata, Vertica, YugabyteDB
ALTER TABLE t DROP CONSTRAINT c
Aurora MySQL, MariaDB, MySQL
ALTER TABLE t DROP FOREIGN KEY c
BigQuery
ALTER TABLE t DROP PRIMARY KEY
ClickHouse, DuckDB, MemSQL, SQLite, Trino
/* UNSUPPORTED */
Generated with jOOQ 3.20. Translate your own SQL on our website
Feedback
Do you have any feedback about this page? We'd love to hear it!