empty

XML example

...
<changeSet  author="liquibase-docs"  id="empty-example">  
    <empty/>  
</changeSet>
...

YAML example

...
-  changeSet:  
    id:  empty-example  
    author:  liquibase-docs  
    changes:  
    -  empty:  {}
...

JSON example

...
{
  "changeSet":  {
    "id":  "empty-example",
    "author":  "liquibase-docs",
    "changes":  [{
      "empty":  {}
    }]
  }
}
...

SQL example

...
--changeset liquibase-docs:empty-example
...

Database support