MySQL聯盟聲明

Question

我只想問如何加入兩個查詢，只有 區別在哪裏聲明。一個是WHERE c.transac_type = 0，另一個是WHERE c.transac_type = 1"。

我想在WHERE c.transac_type = 0和WHERE c.transac_type = 1的條件下看到SUM（c.amount）的輸出，因爲它們具有不同的SUM（c.amount）輸出。

SELECT a.id, a.branch_code, SUM(c.amount), d.category, e.branch_commission 
FROM control_panel_client_create AS a 
    RIGHT JOIN sales_add_h AS b ON a.id = b.branch_code_id 
    RIGHT JOIN sales_add_i AS c ON b.id = c.sales_h_id 
    RIGHT JOIN control_panel_item_create AS d ON c.item_code_id = d.id 
    INNER JOIN control_panel_client_create AS e ON b.branch_code_id = e.id 
    WHERE c.transac_type = 0 
GROUP BY d.category, b.branch_code_id ORDER BY SUM(c.amount) DESC 

Answer 1

，那麼你要使用條件彙總：

SELECT a.id, a.branch_code, SUM(c.amount) as totAmount, 
     sum(case when c.transac_type = 0 then c.amount end) as Trans0_Amount, 
     sum(case when c.transac_type = 1 then c.amount end) as Trans1_Amount, 
     d.category, e.branch_commission 
FROM control_panel_client_create AS a 
RIGHT JOIN sales_add_h AS b ON a.id = b.branch_code_id 
RIGHT JOIN sales_add_i AS c ON b.id = c.sales_h_id 
RIGHT JOIN control_panel_item_create AS d ON c.item_code_id = d.id 
INNER JOIN control_panel_client_create AS e ON b.branch_code_id = e.id 
WHERE c.transac_type IN (0, 1) 
GROUP BY d.category, b.branch_code_id 
ORDER BY SUM(c.amount) DESC 

Answer 2

UNIONing這將是相當簡單的，但不知道它會給你有用的值

SELECT a.id, a.branch_code, SUM(c.amount) AS AmountSum, d.category, e.branch_commission 
FROM control_panel_client_create AS a 
    RIGHT JOIN sales_add_h AS b ON a.id = b.branch_code_id 
    RIGHT JOIN sales_add_i AS c ON b.id = c.sales_h_id 
    RIGHT JOIN control_panel_item_create AS d ON c.item_code_id = d.id 
    INNER JOIN control_panel_client_create AS e ON b.branch_code_id = e.id 
    WHERE c.transac_type = 0 
GROUP BY d.category, b.branch_code_id 
UNION 
SELECT a.id, a.branch_code, SUM(c.amount) AS AmountSum, d.category, e.branch_commission 
FROM control_panel_client_create AS a 
    RIGHT JOIN sales_add_h AS b ON a.id = b.branch_code_id 
    RIGHT JOIN sales_add_i AS c ON b.id = c.sales_h_id 
    RIGHT JOIN control_panel_item_create AS d ON c.item_code_id = d.id 
    INNER JOIN control_panel_client_create AS e ON b.branch_code_id = e.id 
    WHERE c.transac_type = 1 
GROUP BY d.category, b.branch_code_id 
ORDER BY AmountSum DESC 

你可以只讓和兩個TRANSAC類型

SELECT a.id, a.branch_code, SUM(c.amount) AS AmountSum, d.category, e.branch_commission 
FROM control_panel_client_create AS a 
    RIGHT JOIN sales_add_h AS b ON a.id = b.branch_code_id 
    RIGHT JOIN sales_add_i AS c ON b.id = c.sales_h_id 
    RIGHT JOIN control_panel_item_create AS d ON c.item_code_id = d.id 
    INNER JOIN control_panel_client_create AS e ON b.branch_code_id = e.id 
    WHERE c.transac_type IN (0, 1) 
GROUP BY d.category, b.branch_code_id 
ORDER BY AmountSum DESC 

或者總和對於兩者分開

SELECT a.id, a.branch_code, SUM(c.amount) AS AmountSum, d.category, e.branch_commission , c.transac_type 
FROM control_panel_client_create AS a 
    RIGHT JOIN sales_add_h AS b ON a.id = b.branch_code_id 
    RIGHT JOIN sales_add_i AS c ON b.id = c.sales_h_id 
    RIGHT JOIN control_panel_item_create AS d ON c.item_code_id = d.id 
    INNER JOIN control_panel_client_create AS e ON b.branch_code_id = e.id 
    WHERE c.transac_type IN (0, 1) 
GROUP BY d.category, b.branch_code_id, c.transac_type 
ORDER BY AmountSum DESC 

把這兩方面都在同一條線上的

討厭的方式： -

SELECT a.id, a.branch_code, SUM(IF(c.transac_type=0,c.amount, 0)) AS AmountSumTransac_0, SUM(IF(c.transac_type=1, c.amount, 0)) AS AmountSumTransac_1, d.category, e.branch_commission 
FROM control_panel_client_create AS a 
    RIGHT JOIN sales_add_h AS b ON a.id = b.branch_code_id 
    RIGHT JOIN sales_add_i AS c ON b.id = c.sales_h_id 
    RIGHT JOIN control_panel_item_create AS d ON c.item_code_id = d.id 
    INNER JOIN control_panel_client_create AS e ON b.branch_code_id = e.id 
    WHERE c.transac_type IN (0, 1) 
GROUP BY d.category, b.branch_code_id 
ORDER BY AmountSum DESC 

Answer 3

你可以使用IN(0,1)，而不是工會。如果你想在兩個不同的列交易類型的款項

試試這個

SELECT a.id, a.branch_code, SUM(c.amount), d.category, e.branch_commission 
FROM control_panel_client_create AS a 
RIGHT JOIN sales_add_h AS b ON a.id = b.branch_code_id 
RIGHT JOIN sales_add_i AS c ON b.id = c.sales_h_id 
RIGHT JOIN control_panel_item_create AS d ON c.item_code_id = d.id 
INNER JOIN control_panel_client_create AS e ON b.branch_code_id = e.id 
WHERE c.transac_type IN (0, 1) 
GROUP BY d.category, b.branch_code_id,c.transac_type ORDER BY SUM(c.amount) DESC