显示关于特定日期的数据？

我想制作一个报告系统，我需要为每个日期显示报告。显示关于特定日期的数据？

这些是selected_items 我的表架构这是stock_list

我在前端，后端和java使用PHP来显示数据。我尝试了几个查询来获得所需的输出，但是我远远得不到它。这些是我使用的一些查询。

SELECT 
    COALESCE(stock_list.date, selected_items.date) AS date, 
    SUM(stock_list.qty) AS StockSum, 
    SUM(stock_list.weight) AS Stockweight, 
    COUNT(selected_items.barcode) AS BilledItems, 
    SUM(selected_items.weight) AS Billedweight 
FROM stock_list join selected_items 
ON stock_list.date = selected_items.date 
GROUP BY COALESCE(stock_list.date, selected_items.date) 
ORDER BY COALESCE(stock_list.date, selected_items.date);

这给了我第一个五列，但输出给了我错误的价值观。然后我也试过联盟。

SELECT SUM(qty) AS StockSum, SUM(weight) AS Stockweight 
FROM `stock_list` 
WHERE DATE LIKE '08-Jan-2016' 
UNION SELECT COUNT(barcode) AS BilledItems, SUM(weight) AS Billedweight 
FROM `selected_items` 
WHERE DATE LIKE '08-Jan-2016' 
UNION SELECT SUM(qty) AS TotalStock, SUM(weight) AS TotalWeight 
FROM `stock_list`;

在这里我得到了正确的值四列，但问题是>结果显示在两列的时候，我想它是在4列。任何人都可以引导我，我已经认为它的Java部分，但我不擅长PHP和MySQL。谢谢

来源

2016-01-20 AndroidNewBee

谢谢@LordAnomander你能帮助解决方案吗 – AndroidNewBee

你会共享表格模式吗？ – AnkiiG

是啊@AnkiiG请检查更新的问题。谢谢 – AndroidNewBee

不幸的是，SQL小提琴应声而我试图执行这个查询

SELECT sl.date AS date, B.qtySum AS StockSum, B.weightSum AS Stockweight, 
C.barcodeCount AS BilledItems, C.weightSum AS Billedweight 
FROM stock_list sl 
JOIN (SELECT SUM(qty) as qtySum, SUM(weight) as weightSum 
     FROM STOCK_LIST GROUP BY date) AS B 
ON B.date = sl.date 
JOIN (SELECT SUM (weight) AS weightSum, COUNT(barcode) AS barcodeCount 
     FROM SELECTED_ITEMS GROUP BY date) AS C 
ON C.date = sl.date;

As it was tried here。联接的问题是行将被多次连接，因此总和会出错。例如，您有四行从第二个表中连接起来，因此总和应该高四倍。通过子查询，您可以避免这个问题，因为您在加入变量之前对变量进行计数和加总，因此数字应该适合。唉，我无法运行查询，所以我不能100％确定它的工作原理，但它应该是正确的方法。

来源

2016-01-20 09:03:25 LordAnomander

显示关于特定日期的数据？

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