兩個表計數兩個seprate列

Question

我有兩個表，例如：

table1 
--------------------- 
|id | name| isActive| 
|---|-----|---------| 
| 1 | dd | 1 | 
| 1 | cc | 1 | 
| 1 | zz | 1 | 
| 1 | yy | 1 | 
--------------------- 


table2 
--------------------- 
|id | name| isActive| 
|---|----|----------| 
| 1 | ab | 1 | 
| 1 | cd | 1 | 
| 1 | ef | 1 | 
| 1 | gh | 1 | 
--------------------- 

的要求得到兩個表的計數和打印他們兩個單獨的列，並將其打印成BIRT兩個單獨的列報告我已經嘗試過這種

SELECT 
    COUNT(table2.`name`) Table1Count, 
    table1.`isActive` Table1IsActive , 
    COUNT(table2.`name`) Table2Count, 
    table2.`isActive` Table2IsActive 
FROM 
    `table1`, 
    `table2` 

它放出來是在兩個單獨的列，但與交叉連接

Table1Count isActive Table2Count Table2IsActive 
----------- -------- ----------- ---------------- 
    43316   0   3536     1 

我不能使用任何連接，因爲在這兩個表沒有任何關係，而其輸出類似於所需出來放，我想兩個表通過嘗試這種在單獨的列

計數我得到兩個不同的行

SELECT 
    * 
FROM 
    (SELECT 
    COUNT(*) Table1Count, 
    table1.`isActive` Table1IsActive 
    FROM 
    `table1` 
    UNION 
    SELECT 
    COUNT(*) Table2Count, 
    table2.`isActive` Table2IsActive 
    FROM 
    `table2 `) AS a 

其輸出分成兩行顯示，而我的要求是不同的列

Table1Count Table1IsActive 
------------ -------------- 
    442   0 
    98   1 

Answer 1

在您的UNION中，爲另一個表中的列添加額外的列。然後使用MAX()

SELECT MAX(Table1Count) AS Table1Count, MAX(Table1IsActive) AS Table1IsActive, 
     MAX(Table2Count) AS Table2Count, MAX(Table2IsActive) AS Table2IsActive 
FROM (SELECT COUNT(*) Table1Count, table1.`isActive` Table1IsActive, 0 Table2Count, 0 Table2IsActive 
     FROM `table1` 
     UNION 
     SELECT 0 Table1Count, 0 Table1IsActive, COUNT(*) Table2Count, table2.`isActive` Table2IsActive 
     FROM `table2`) AS a 

Answer 2

試試這個：

SELECT (SELECT COUNT(*) FROM `table1`) AS Table1Count, 
     (SELECT COUNT(*) FROM `table2`) AS Table2Count; 

Answer 3

UNION將始終在工會使用來自第一選擇列名組合它們。由於這兩個查詢返回單行，你可以用一個簡單的笛卡爾乘積（1×1 = 1）的查詢組合：

SELECT t1.Table1Count, t1.Table1IsActive, t2.Table2Count, t2.Table2IsActive 
FROM 
    (SELECT 
    COUNT(*) Table1Count, 
    table1.isActive Table1IsActive 
    FROM 
    table1 
    GROUP BY table1.isActive 
    ) as t1, 
    (SELECT 
    COUNT(*) Table2Count, 
    table2.isActive Table2IsActive 
    FROM 
    table2 
    GROUP BY table2.isActive  
) as t2; 

編輯從評論

更新 - 我相信什麼你追求的是如下，即計算所有行，也算只是有效行（在一個單一的查詢），然後在兩個表重複此，項目單行結果：

SELECT 
     t1.Table1Count, t1.Table1Active, t2.Table1Count, t2.Table2Active 
FROM 
    (
     SELECT COUNT(t1.id) AS Table1Count, 
       SUM(CASE WHEN t1.IsActive = '1' THEN 1 ELSE 0 END) AS Table1Active 
     FROM Table1 t1 
    ) t1, 
    (
     SELECT COUNT(t2.id) AS Table1Count, 
       SUM(CASE WHEN t2.IsActive = '1' THEN 1 ELSE 0 END) AS Table2Active 
     FROM Table2 t2 
    ) t2; 

這是非常重要的這兩者的派生表格（t1和t2）每個都壓平成一行，否則笛卡爾產品將重複行。