SELECT DISTINCT RES.RESOURCE_ID , RES.RESOURCE_NAME FROM PA_RESOURCES_DENORM RES , PA_PROJECT_ASSIGNMENTS ASMT WHERE RES.RESOURCE_ID = ASMT.RESOURCE_ID AND ASMT.START_DATE BETWEEN RES.RESOURCE_EFFECTIVE_START_DATE AND RES.RESOURCE_EFFECTIVE_END_DATE AND ASMT.ASSIGNMENT_TYPE <> 'OPEN_ASSIGNMENT'