MySQL的 - 混合兩種說法

Question

請幫助這兩份報表列混合到一個說法：usa'`

1. SELECT * FROM inventory WHERE pro_status ='1' or pro_status ='2'

2. SELECT * FROM inventory WHERE loca_city = 'tw' or loca_city =」

   我需要陳述1的結果來做陳述2.

   //Property Status -0=suspended;1=valid(NORMALl);2=valid(GOOD);3=no/wrong number. 
   Data Base 
   
   ref pro_type loca_city pro_statusRemarks: 
   00001 Industrial HK  0 
   00002 Industrial TW  2 
   00003 Commercial HK  2 
   00004 Retail  TW  0 
   00005 Others  HK  2 
   00006 Retail  HK  2 
   00007 Others  HK  2 
   00008 Retail  USA  2 
   00009 Retail  HK  1 
   00010 Retail  HK  1 
   00011 Retail  TW  2 
   00012 Retail  HK  2 
   00013 Retail  HK  2 
   00014 Retail  HK  2 
   00015 Retail  HK  2 
   00016 Commercial HK  1 
   00017 Retail  HK  1 
   00018 Others  HK  1 
   

   需要的結果是：

   ref pro_type loca_city pro_statusRemarks: 
   00002 Industrial TW  2 
   00008 Retail  USA  2 
   00011 Retail  TW  2 
   

Answer 1

如果這兩個查詢是在同一個表，所有的條件都OR你可以直接做：

SELECT 
* 
FROM inventory 
WHERE `pro_status`='1' or `pro_status`='2' 
OR `loca_city` = 'hk' or `loca_city` = 'tw' or `loca_city` = ' 

Answer 2

SELECT * FROM inventory 
WHERE `pro_status`='1' 
    OR `pro_status`='2' 
    OR `loca_city` = 'hk' 
    OR `loca_city` = 'tw' 
    OR loca_city` = 'usa' 

Answer 3

您需要將各自的過濾器與AND（注意在orde周圍包括括號） R鍵強制執行所需的優先級）：

SELECT * 
FROM inventory 
WHERE (`pro_status`='1' or `pro_status`='2') 
    AND (`loca_city` = 'hk' or `loca_city` = 'tw' or loca_city` = 'usa') 

的條件可以使用MySQL的IN()操作被簡化：

SELECT * 
FROM inventory 
WHERE pro_status IN (1,2) 
    AND loca_city IN ('hk','tw','usa')