dropDefaultValue
Removes the database default value for a column.
Available attributes
catalogName |
Name of the catalog |
|
all |
3.0 |
columnDataType |
|
informix |
all |
|
columnName |
Name of column to drop the default value from |
all |
all |
|
schemaName |
Name of the schema |
|
all |
|
tableName |
Name of the table to containing the column |
all |
all |
|
XML example
<changeSet author="liquibase-docs" id="dropDefaultValue-example">
<dropDefaultValue catalogName="cat"
columnDataType="int"
columnName="id"
schemaName="public"
tableName="person"/>
</changeSet>
YAML example
changeSet:
id: dropDefaultValue-example
author: liquibase-docs
changes:
- dropDefaultValue:
catalogName: cat
columnDataType: int
columnName: id
schemaName: public
tableName: person
JSON example
{ "changeSet": { "id": "dropDefaultValue-example", "author": "liquibase-docs", "changes": [ { "dropDefaultValue": { "catalogName": "cat", "columnDataType": "int", "columnName": "id", "schemaName": "public", "tableName": "person" } }] } }
SQL example
ALTER TABLE cat.person ALTER id DROP DEFAULT;
Database support
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 |