根据特定条件从SQL Server检索数据

Question

假设我们有一个可以使用以下代码构建的表。

**SET ANSI_NULLS ON
GO
SET QUOTED_IDENTIFIER ON
GO
SET ANSI_PADDING ON
GO
CREATE TABLE [dbo].[ACBilling](
    [ID] [int] IDENTITY(1,1) NOT NULL,
    [Invoice] [int] NULL,
    [Product] [varchar](500) NULL,
    [Rate] [money] NULL,
    [Quantity] [int] NULL,
    [Amount]  AS ([Rate]*[Quantity]),
    [CGSTRate] [money] NULL,
    [CGSTAmount] [money] NULL,
    [SGSTRate] [money] NULL,
    [SGSTAmount] [money] NULL,
    [IGSTRate] [money] NULL,
    [IGSTAmount] [money] NULL,
    [TotalTaxAmount]  AS (([CGSTAmount]+[SGSTAmount])+[IGSTAmount])
) ON [PRIMARY]
GO
SET ANSI_PADDING OFF
GO**

我们已将示例数据输入表中，现在我的表看起来像 -

请考虑以下列CGSTRate，SGSTRate和IGSTRate，这些是三种税（百分比可能会有所不同），这些税将是金额列，相关的税值是分别保存在CGSTAmount，SGSTAmount和IGSTAmount列中。

现在，请考虑发票栏，您会看到发票＃1包含3条记录，发票＃2包含3条记录，发票＃3包含3条不同CGSTRate，SGSTRate和{{ 1}}和相关的CGSTAmount，SGSTAmount和IGSTRates。

我想以这样一种方式执行查询：sql应按不同的发票编号，金额列的总和以及IGSTAmount中的每个税率百分比对记录进行排序，{{1 }和CGSTRate，它应该添加单独的列以及SGSTRate，IGSTRate和CGSTAmount的SUM，以便我得到以下结果。

有人能帮助我吗？

Answer 1

可能你正在寻找案件。试试这个 -

SELECT [Invoice], 
       SUM([Amount]), 
       SUM(CASE WHEN [CGSTRate] = '6%' THEN [CGSTAmount]) END AS "CGST AMT 6%",
       SUM(CASE WHEN [CGSTRate] = '9%' THEN [CGSTAmount]) END AS "CGST AMT 9%",
       SUM(CASE WHEN [CGSTRate] = '12%' THEN [CGSTAmount]) END AS "CGST AMT 12%",
       SUM(CASE WHEN [SGSTRate] = '6%' THEN [SGSTAmount]) END AS "SGST AMT 6%",
       SUM(CASE WHEN [SGSTRate] = '9%' THEN [SGSTAmount]) END AS "SGST AMT 9%",
       SUM(CASE WHEN [SGSTRate] = '12%' THEN [SGSTAmount]) END AS "SGST AMT 12%",
       SUM(CASE WHEN [IGSTRate] = '12%' THEN [IGSTAmount]) END AS "IGST AMT 12%",
       SUM(CASE WHEN [IGSTRate] = '24%' THEN [IGSTAmount]) END AS "IGST AMT 24%",
       SUM(CASE WHEN [IGSTRate] = '28%' THEN [IGSTAmount]) END AS "IGST AMT 28%"
 FROM [dbo].[ACBilling]
 GROUP BY [Invoice];

希望这有帮助。