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ALTER TABLE .. DROP COLUMN RESTRICT
Applies to ✅ Open Source Edition ✅ Express Edition ✅ Professional Edition ✅ Enterprise Edition
An optional RESTRICT clause can be added to a DROP COLUMN clause to hint at the operation failing when there are objects depending on the column.
// Add a RESTRICT clause when dropping columns
create.alterTable("table").drop("column").restrict().execute();
In most RDBMS, RESTRICT semantics is the default when dropping columns, although implementations do not agree on what dependent objects are included in the RESTRICT check.
Dialect support
This example using jOOQ:
alterTable("t").drop("c").restrict()
Translates to the following dialect specific expressions:
CockroachDB, DB2, Derby, DuckDB, HSQLDB, Postgres, YugabyteDB
ALTER TABLE t DROP c RESTRICT
Oracle
ALTER TABLE t DROP COLUMN c
ASE, Access, Aurora MySQL, Aurora Postgres, BigQuery, ClickHouse, Exasol, Firebird, H2, Hana, Informix, MariaDB, MemSQL, MySQL, Redshift, SQLDataWarehouse, SQLServer, SQLite, Snowflake, Sybase, Teradata, Trino, Vertica
/* UNSUPPORTED */
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