relation between ra_customer_trx_lines_v , OE_ORDER_LINES_V and OE_PRICE_ADJUSTMENTS_V
1- if we create discount on sales order,and in transaction we have multiple line.
2- we want to differ between inventory item and discount items.
so we want to know the relation between ra_customer_trx_lines_v , OE_ORDER_LINES_V and OE_PRICE_ADJUSTMENTS_V.