MySQL幫助加入表格來製作一個jasper ireport

Question

讓我開始說我不是一個sql專家或一個jasper-reports專家，但是我試圖生成一個報告，顯示誰是由公司登錄到我的項目中的客戶每月。我也知道，我正在設計查詢，看看未來1個月，以便我有數據處理公司註冊創建客戶端或2的機會，然後不登錄或執行任何操作。

這就是我想要返回的數據看起來像：

Date  Company Client Client_ID  Authentications Unique_Users 
2016-may Company-A client-1  1    24     1 
2016-may Company-A client-2  2    10     2 
2016-may Company-A client-3  3    0     0 
2016-June Company-A client-1  1    0     0 
2016-June Company-A client-2  2    0     0 
2016-June Company-A client-3  3    0     0 

我有這樣的查詢將返回日期，公司名稱，客戶名稱，客戶端ID，auths中和獨特的用戶幾個月來的行動發生在這個查詢中，留下沒有認證的行。

SELECT 
    DATE_FORMAT(rq.requestTime, '%Y-%M') AS Date, 
    company.name AS Company, 
    client.name AS Client, 
    client.id AS client_id, 
    COUNT(rq.id) AS Authentications, 
    COUNT(DISTINCT rq.personguid) AS Unique_Users   
FROM 
company JOIN CLIENT ON company.id = client.company_id 
    LEFT JOIN request_queue rq ON rq.clientid = client.id 
WHERE 
company.id = 19 
AND rq.status = 'complete' AND rq.request_type LIKE "%authorize%" 
    AND MONTH(rq.requestTime) >= MONTH("2016-05-01") 
    AND MONTH(rq.requestTime) <= MONTH("2016-06-01") 
GROUP BY 
    client_id, Date 
ORDER BY Date ASC, client_id ASC; 

這將返回類似這樣的東西，因爲有些客戶還沒有在五月登陸，六月有沒有記錄呢，基本上沒有request_queue數據沒有行：

Date  Company Client Client_ID  Authentications Unique_Users 
2016-may Company-A client-1  1    24     1 
2016-may Company-A client-2  2    10     2 

在這一點上，我想出了這個。

SELECT 
dateTable.mydate AS Date, 
clientTable.ClientName AS Client, 
clientTable.CompanyName AS Company, 
clientTable.client_id AS Client_ID 
FROM 
(SELECT 
client.name AS ClientName, 
client.id AS client_id, 
company.name AS CompanyName 
FROM 
company JOIN CLIENT ON company.id = client.company_id 
WHERE company.id = 19) clientTable 
JOIN 
(SELECT 
DATE_FORMAT(temp.thedate,'%Y-%M') AS mydate, 
temp.thedate AS theDate FROM (
     SELECT 
    DATE_ADD("2016-05-01", INTERVAL u.i MONTH) AS thedate 
     FROM i AS u ORDER BY thedate) temp 
     WHERE temp.thedate <= "2016-06-01") dateTable; 

這給了我一個沒有request_queue數據的日期，公司名稱，客戶端名稱和客戶端ID的表。

此表是這樣的：

Date  Company Client Client_ID 
2016-may Company-A client-1  1 
2016-may Company-A client-2  2 
2016-may Company-A client-3  3 
2016-June Company-A client-1  1 
2016-June Company-A client-2  2 
2016-June Company-A client-3  3 

是否有辦法將這些數據相結合，得到位於這個帖子頂圖表？

附加信息： 目標是將我的查詢結果傳遞給jasper報表設計器ireport。我正在使用這些數據創建一個交叉表，頂部的日期和左側的客戶端以及交叉行中的認證。

自從大學幾年以前，我還沒有碰過sql。任何想法或指導將不勝感激。

Answer 1

我從你最後一次查詢的工作我的方式，這似乎是製造你所需要的：

SELECT 
    dateTable.mydate AS Date, 
    clientTable.ClientName AS Client, 
    clientTable.CompanyName AS Company, 
    clientTable.client_id AS Client_ID, 
    COUNT(rq.id) AS Authentications, 
    COUNT(DISTINCT rq.personguid) AS Unique_Users 
FROM 
(SELECT 
    client.name AS ClientName, 
    client.id AS client_id, 
    company.name AS CompanyName 
    FROM company JOIN CLIENT ON company.id = client.company_id 
    WHERE company.id = 19) clientTable 
JOIN (SELECT 
    DATE_FORMAT(temp.thedate,'%Y-%M') AS mydate, 
    temp.thedate AS theDate 
    FROM (SELECT 
      DATE_ADD("2016-05-01", INTERVAL u.i MONTH) AS thedate 
      FROM i AS u ORDER BY thedate) temp 
      WHERE temp.thedate <= "2016-06-01") dateTable 
LEFT JOIN request_queue rq on (rq.clientid = clientTable.client_ID and DATE_FORMAT(rq.requestTime,'%Y-%M') = dateTable.mydate) 
GROUP BY Client_ID, Date 
ORDER BY Date ASC, Client_ID ASC; 

當然，這是簡化版本，不考慮請求的類型和狀態，但我認爲你可以輕鬆地從這裏開始工作。