dropForeignKeyConstraint

Drops an existing foreign key.

Available attributes

Name Description Required for Supports Since
baseTableCatalogName Name of the catalog of the base table all 3.0
baseTableName Name of the table containing the column constrained by the foreign key all all
baseTableSchemaName Name of the schema of the base table all
constraintName Name of the constraint (foreign key) to drop all all 
...
<changeSet  author="liquibase-docs"  id="dropForeignKeyConstraint-example">  
    <dropForeignKeyConstraint  baseTableCatalogName="cat"  
            baseTableName="person"  
            baseTableSchemaName="public"  
            constraintName="fk_address_person"/>  
</changeSet>
...
...
-  changeSet:  
    id:  dropForeignKeyConstraint-example  
    author:  liquibase-docs  
    changes:  
    -  dropForeignKeyConstraint:  
        baseTableCatalogName:  cat  
        baseTableName:  person  
        baseTableSchemaName:  public  
        constraintName:  fk_address_person
...
...
{
  "changeSet":  {
    "id":  "dropForeignKeyConstraint-example",
    "author":  "liquibase-docs",
    "changes":  [{
      "dropForeignKeyConstraint":  {
        "baseTableCatalogName":  "cat",
        "baseTableName":  "person",
        "baseTableSchemaName":  "public",
        "constraintName":  "fk_address_person"
      }
    }]
  }
}
...
...
--changeset liquibase-docs:dropForeignKeyConstraint-example
ALTER  TABLE  cat.person  DROP  FOREIGN  KEY  fk_address_person;
...

Database support

Database Notes Auto Rollback
DB2/LUW Supported No
DB2/z Supported No
Derby Supported No
Firebird Supported No
H2 Supported No
HyperSQL Supported No
INGRES Supported No
Informix Supported No
MariaDB Supported No
MySQL Supported No
Oracle Supported No
PostgreSQL Supported No
Snowflake Supported No
SQL Server Supported No
SQLite Not Supported No
Sybase Supported No
Sybase Anywhere Supported No