<query id="changeGroup" action="update">
    <tables>
        <table name="member_group_member" />
    </tables>
    <columns>
        <column name="group_srl" var="target_group_srl" filter="number" notnull="notnull" />
    </columns>
    <conditions>
        <condition operation="equal" column="group_srl" var="source_group_srl" notnull="notnull" filter="number" />
    </conditions>
</query>
