====== Change Log Parameters ======

//Since LiquiBase 1.7//

LiquiBase allows dynamic substitution of parameters in a changelog.  The parameters to replace are described using the ${} syntax.


===== Example =====

<code xml>
<createTable tableName="${table.name}">
     <column name="id" type="int"/>
     <column name="${column1.name}" type="varchar(${column1.length})"/>
     <column name="${column2.name}" type="int"/>
</createTable>
</code>

===== Configuring parameter values =====

Parameter values are looked up in the following order:
  - Passed as a parameter to your LiquiBase runner (see [[Ant]], [[Command Line]], etc. documentation for how to pass them)
  - As a JVM system property
  - In the <parameters/> block of the [[DatabaseChangeLog]] file itself.