Available in versions: Dev (3.21) | Latest (3.20) | 3.19 | 3.18 | 3.17 | 3.16 | 3.15 | 3.14 | 3.13 | 3.12 | 3.11
ALTER TABLE .. ADD CHECK
Applies to ✅ Open Source Edition ✅ Express Edition ✅ Professional Edition ✅ Enterprise Edition
All constraint types can be added with the ALTER TABLE statement. This includes CHECK constraints:
// Adding an unnamed constraint to a table
create.alterTable("table").add(check(length(field(name("c"), INTEGER)).gt(0))).execute();
// Adding a named constraint to a table
create.alterTable("table").add(constraint("ck").check(length(field(name("c"), INTEGER)).gt(0))).execute();
It is recommended to always provide a name with a constraint to simplify schema management. See also this section of the manual
Dialect support
This example using jOOQ:
alterTable("t").add(constraint("ck").check(field("c", INTEGER).gt(0)))
Translates to the following dialect specific expressions:
ASE, Access, Aurora Postgres, ClickHouse, CockroachDB, DB2, Derby, Firebird, H2, HSQLDB, Hana, MariaDB, MySQL, Oracle, Postgres, SQLServer, Sybase, Teradata, Vertica, YugabyteDB
ALTER TABLE t ADD CONSTRAINT ck CHECK (c > 0)
Informix
ALTER TABLE t ADD CONSTRAINT CHECK (c > 0) CONSTRAINT ck
Aurora MySQL, BigQuery, Databricks, DuckDB, Exasol, MemSQL, Redshift, SQLDataWarehouse, SQLite, Snowflake, Trino
/* UNSUPPORTED */
Generated with jOOQ 3.21. Support in older jOOQ versions may differ. Translate your own SQL on our website
Feedback
Do you have any feedback about this page? We'd love to hear it!