客戶資料維護作業
程式名稱:Cust_Unit

--客戶折讓設定
select * from m_cusdst where merno='A1020' and custno = '00306012'

--客戶折讓設定 查詢語法
select m_cusdst.*,
m_items.price ,m_items.mernm,m_items.merdsc
from m_cusdst
left join m_items on m_cusdst.merno=m_items.merno and m_cusdst.stno=m_items.stno
WHERE m_cusdst.custno = '310921'
--交易記錄 查詢語法?
SELECT *
FROM v_sales
WHERE stno = '004'
AND custno = '310921'
ORDER BY saldt DESC,
salno DESC
--地址???不知何用?
select ADDR3NM from m_addr3 where ADDR1NO='' and ADDR2NO='' and ADDR3NO=''
select ADDR2NM from m_addr2 where ADDR1NO='' and ADDR2NO=''
select ADDR1NM from m_addr1 where ADDR1NO=''
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