基於優先級 -Sql 選擇行

Question

我有一個案例，我想選擇基於行的狀態克隆優先級

第一優先級應該是 Customer_Status 狀態為“已刪除”

第二個優先級應該是 Family_Status，值為 'Deleted' [選擇前 1 個 Family_Status ='Deleted']

如果所有 Family_Status 都為“open”，則選擇前 1 個 Family_Status ='Open'

情況1

CustomerID  FamilyId    Name         Customer_Status     Family_Status
-------     --------    ---------   ---------------      -----------
1000         101         Vk           Open               Deleted
1000         102         vk           Open               Open
1000         103         vk           Open               Open

在這種情況下，我需要結果為

CustomerID  FamilyId    Name         Customer_Status     Family_Status
-------     --------    ---------   ---------------      -----------
1000         101         Vk           Open               Open

案例2

CustomerID   FamilyId    Name         Customer_Status     Family_Status
-------                  ---------    ---------------     ------------
1000          101         Vk           Open               Open
1000          102         vk           Deleted            Open
1000          103         vk           Open               Open

在這種情況下，我需要結果為

CustomerID   FamilyId    Name         Customer_Status     Family_Status
-------                  ---------    ---------------     ------------
1000          102         vk           Deleted            Open

案例 : 3

CustomerID   FamilyId    Name         Customer_Status     Family_Status
-------                  ---------    ---------------     ------------
1000          101         Vk           Deleted            Open
1000          102         vk           Deleted            Open
1000          103         vk           Deleted            Open

輸出 ：

CustomerID   FamilyId    Name         Customer_Status     Family_Status
-------                  ---------    ---------------     ------------
1000          101         Vk           Deleted            Open

案例：4

CustomerID   FamilyId    Name         Customer_Status     Family_Status
-------                  ---------    ---------------     ------------
1000          101         Vk           Open               Deleted
1000          102         vk           Open               Deleted
1000          103         vk           Open               Deleted

在這種情況下，我需要結果為

CustomerID   FamilyId    Name         Customer_Status     Family_Status
-------                  ---------    ---------------     ---------
1000          101         Vk           Open               Deleted

任何人都可以幫助解決此查詢

Answer 1

只需對結果集進行排序：

SELECT TOP (1) *
FROM MyTable
ORDER BY Customer_Status, Family_Status DESC