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ALTER TABLE .. ALTER CONSTRAINT .. ENFORCED
Applies to ✅ Open Source Edition ✅ Express Edition ✅ Professional Edition ✅ Enterprise Edition
A constraint can be enabled using the ALTER TABLE's ENFORCED clause on a constraint:
// Set the enforced flag on a constraint
create.alterTable("table").alterConstraint("uk").enforced().execute();
If enforcement of the constraint fails, an error is raised by the database.
Dialect support
This example using jOOQ:
alterTable("t").alterConstraint("c").enforced()
Translates to the following dialect specific expressions:
DB2, MySQL
ALTER TABLE t ALTER CONSTRAINT c ENFORCED
Oracle
ALTER TABLE t MODIFY CONSTRAINT c ENABLE
ASE, Access, Aurora MySQL, Aurora Postgres, BigQuery, ClickHouse, CockroachDB, Derby, DuckDB, Exasol, Firebird, H2, HSQLDB, Hana, Informix, MariaDB, MemSQL, Postgres, Redshift, SQLDataWarehouse, SQLServer, SQLite, Snowflake, Sybase, Teradata, Trino, Vertica, YugabyteDB
/* UNSUPPORTED */
Generated with jOOQ 3.20. Translate your own SQL on our website
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