Drops an existing foreign key.

Available attributes

Name Description Required for Supports Since
baseTableCatalogName all 3.0
baseTableName Name of the table containing the column constrained by the foreign key all all
baseTableSchemaName all
constraintName Name of the foreign key constraint to drop all all

XML example

<changeSet  author="liquibase-docs"  id="dropForeignKeyConstraint-example">  
    <dropForeignKeyConstraint  baseTableCatalogName="cat"  

YAML example

  id:  dropForeignKeyConstraint-example  
  author:  liquibase-docs  
  -  dropForeignKeyConstraint:  
      baseTableCatalogName:  cat  
      baseTableName:  person  
      baseTableSchemaName:  public  
      constraintName:  fk_address_person

JSON example

{  "changeSet":  {  "id":  "dropForeignKeyConstraint-example",  "author":  "liquibase-docs",  "changes":  [  {  "dropForeignKeyConstraint":  {  "baseTableCatalogName":  "cat",  "baseTableName":  "person",  "baseTableSchemaName":  "public",  "constraintName":  "fk_address_person"  }  }]  }  }

SQL 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
SQL Server Supported No
SQLite Not Supported No
Sybase Supported No
Sybase Anywhere Supported No