orm.xml

<entity-mappings version="2.1" xmlns="http://xmlns.jcp.org/xml/ns/persistence/orm"
                 xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
                 xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/persistence/orm
http://xmlns.jcp.org/xml/ns/persistence/orm_2_1.xsd">
  
  <!-- The new table name -->
  <entity class="com.madadipouya.example.multiple.datasource.song.entity">
    <table name="songs_archive"></table>
  </entity>
</entity-mappings>