dropForeignKeyConstraint

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"  
            baseTableName="person"  
            baseTableSchemaName="public"  
            constraintName="fk_address_person"/>  
</changeSet>

YAML example

changeSet:  
  id:  dropForeignKeyConstraint-example  
  author:  liquibase-docs  
  changes:  
  -  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