Question

我正在使用phpMyAdmin，我有两个表：

___ SalesTaxes

|--------|----------|------------|
| STX_Id | STX_Name | STX_Amount |
|--------|----------|------------|
|      1 |    Tax 1 |       5.00 |
|      2 |    Tax 2 |      13.50 |
|--------|----------|------------|

___ BillableDatas

|--------|---------------|------------|------------|--------------|----------|---------------------|
| BIL_Id | BIL_BookingId | BIL_Date   | BIL_Status | BIL_Quantity | BIL_Rate | BIL_ApplicableTaxes |
|--------|---------------|------------|------------|--------------|----------|---------------------|
|      1 |             2 | 2018-03-06 | notcharged |           2  |   100.00 |                   1 |
|      2 |             2 | 2018-03-07 | notcharged |           3  |   105.00 |                 1,2 |
|--------|---------------|------------|------------|--------------|----------|---------------------|

我希望每天列出___BillableDatas中的可结算内容列表，具体取决于事物的状态（收费与未收费）。

这样的事情：

|------------|-----------------|--------------------|------------------|--------------------|
|    Date    | BIL_Sum_Charged | BIL_Sum_Notcharged | Taxes_ForCharged | TaxesForNotCharged |
|------------|-----------------|--------------------|------------------|--------------------|
| 2018-03-06 |            0.00 |             200.00 |             0.00 |              10.00 |
| 2018-03-07 |            0.00 |             315.00 |             0.00 |             58.275 |
|------------|-----------------|--------------------|------------------|--------------------|

我实际上有什么：

SELECT b.BIL_Date,
SUM(case when b.BIL_Status = "charged" then b.BIL_Rate else 0 end
 / (1 + LENGTH(b.BIL_ApplicableTaxes)
        - LENGTH( REPLACE ( b.BIL_ApplicableTaxes, ",", "") ) ))
   as BIL_Sum_Charged, 
 SUM(case when b.BIL_Status = "notcharged" then b.BIL_Rate else 0 end
 / (1 + LENGTH(b.BIL_ApplicableTaxes)
        - LENGTH( REPLACE ( b.BIL_ApplicableTaxes, ",", "") )))
      as BIL_Sum_Notcharged,
  SUM(case when b.BIL_status = "charged" then s.STX_Amount else 0 end) 
      as STX_TAX_Charged,
  SUM(case when b.BIL_status = "notcharged" then s.STX_Amount else 0 end) 
     as STX_TAX_NotCharged
 FROM ___BillableDatas b
 INNER JOIN ___SalesTaxes s
 ON FIND_IN_SET(s.STX_id, b.BIL_ApplicableTaxes) > 0
 WHERE b.BIL_HotelId='cus_CNHLMiMOzP5cuM' 
 AND b.BIL_BookingId='2' 
 GROUP BY b.BIL_Date 
 ORDER BY b.BIL_Date ASC

此查询出现问题的原因是我没有BIL_Sum_Charged和BIL_Sum_NotCharged的正确总和，因为总和不会乘以BIL_Quantity列。

例如，我105而2018-03-07我应该315 BIL_Sum_Notcharged。最后的税金总额相同。

我的错误在哪里？

请参阅SQL小提琴： http://sqlfiddle.com/#!9/8b3cb/1

非常感谢你的帮助。

Answer 1

经过讨论，这似乎就是你所需要的。希望这会有所帮助。

SELECT b.BIL_Date,
SUM(case when b.BIL_Status = "charged" then b.BIL_Rate else 0 end
 / (1 + LENGTH(b.BIL_ApplicableTaxes)
        - LENGTH( REPLACE ( b.BIL_ApplicableTaxes, ",", "") ) )) * b.BIL_Quantity
   as BIL_Sum_Charged, 
 SUM(case when b.BIL_Status = "notcharged" then b.BIL_Rate else 0 end
 / (1 + LENGTH(b.BIL_ApplicableTaxes)
        - LENGTH( REPLACE ( b.BIL_ApplicableTaxes, ",", "") ))) * b.BIL_Quantity
      as BIL_Sum_Notcharged,
  SUM(case when b.BIL_status = "charged" then s.STX_Amount else 0 end) * (SUM(case when b.BIL_Status = "charged" then b.BIL_Rate else 0 end
 / (1 + LENGTH(b.BIL_ApplicableTaxes)
        - LENGTH( REPLACE ( b.BIL_ApplicableTaxes, ",", "") ) )) * b.BIL_Quantity) / 100
      as STX_TAX_Charged,
  SUM(case when b.BIL_status = "notcharged" then s.STX_Amount else 0 end) * ( SUM(case when b.BIL_Status = "notcharged" then b.BIL_Rate else 0 end
 / (1 + LENGTH(b.BIL_ApplicableTaxes)
        - LENGTH( REPLACE ( b.BIL_ApplicableTaxes, ",", "") ))) * b.BIL_Quantity) / 100
     as STX_TAX_NotCharged
 FROM ___BillableDatas b
 INNER JOIN ___SalesTaxes s
 ON FIND_IN_SET(s.STX_id, b.BIL_ApplicableTaxes) > 0
 WHERE b.BIL_HotelId='cus_CNHLMiMOzP5cuM' 
 AND b.BIL_BookingId='2' 
 GROUP BY b.BIL_Date 
 ORDER BY b.BIL_Date ASC;

根据讨论编辑。

在mySQL中乘以两个数字

1 个答案: