Question

当我尝试将Access SQL代码用于INSERT INTO语句并转换为更有组织的SQL Server版本时，我遇到了一个随机问题。下面是Access SQL，除了第一个SELECT - ＆＃34; SELECT＆＃34; Shipment＆＃34; AS Type ...我没有看到它从中提取数据的任何来源，它在Access的设计视图中被称为表达式。我真的只在SQL Server中工作，所以我希望有人可以帮我解释这里的意图。感谢。

'INSERT INTO [Fcst/Order/Ship Data] ( Type, [Acct#], BU, Gender, Material, Description, [Size], [Year], Mth, Qty, BS )
SELECT "Shipment" AS Type, [Fcst v Order 03: Create Temp Invoice Tbl (Invoiced)].[BILL TO] AS [Acct#], dbo_vw_kd_BUSINESS_UNIT.BUSINESS_UNIT_DESC AS BU, dbo_vw_kd_GENDER.GENDER_DESC AS Gender, dbo_VW_INVOICES_SIZE.MATERIAL AS Material, dbo_vw_MM_MATERIAL.DESCRIPTION AS Description, dbo_VW_INVOICES_SIZE.SIZE_LITERAL, Year([requested_delivery_date]) AS [Year], Month([requested_delivery_date]) AS Mth, Sum(dbo_VW_INVOICES_SIZE.INVOICED_QUANTITY) AS Qty, dbo_vw_kd_BUSINESS_SEGMENT.BUSINESS_SEGMENT_DESC
FROM ([Fcst v Order 03: Create Temp Invoice Tbl (Invoiced)] INNER JOIN (dbo_VW_INVOICES_SIZE INNER JOIN ((dbo_vw_MM_MATERIAL INNER JOIN dbo_vw_kd_BUSINESS_UNIT ON dbo_vw_MM_MATERIAL.BUSINESS_UNIT_CODE = dbo_vw_kd_BUSINESS_UNIT.BUSINESS_UNIT_CODE) INNER JOIN dbo_vw_kd_GENDER ON dbo_vw_MM_MATERIAL.GENDER_CODE = dbo_vw_kd_GENDER.GENDER_CODE) ON dbo_VW_INVOICES_SIZE.MATERIAL = dbo_vw_MM_MATERIAL.MATERIAL) ON ([Fcst v Order 03: Create Temp Invoice Tbl (Invoiced)].SIZE_INDEX = dbo_VW_INVOICES_SIZE.SIZE_LITERAL) AND ([Fcst v Order 03: Create Temp Invoice Tbl (Invoiced)].BILLING_DOCUMENT_NUMBER = dbo_VW_INVOICES_SIZE.BILLING_DOCUMENT_NUMBER) AND ([Fcst v Order 03: Create Temp Invoice Tbl (Invoiced)].BILLING_ITEM_NUMBER = dbo_VW_INVOICES_SIZE.BILLING_ITEM_NUMBER)) INNER JOIN dbo_vw_kd_BUSINESS_SEGMENT ON dbo_vw_MM_MATERIAL.BUSINESS_SEGMENT_CODE = dbo_vw_kd_BUSINESS_SEGMENT.BUSINESS_SEGMENT_CODE
GROUP BY [Fcst v Order 03: Create Temp Invoice Tbl (Invoiced)].[BILL TO], dbo_vw_kd_BUSINESS_UNIT.BUSINESS_UNIT_DESC, dbo_vw_kd_GENDER.GENDER_DESC, dbo_VW_INVOICES_SIZE.MATERIAL, dbo_vw_MM_MATERIAL.DESCRIPTION, dbo_VW_INVOICES_SIZE.SIZE_LITERAL, Year([requested_delivery_date]), Month([requested_delivery_date]), dbo_vw_kd_BUSINESS_SEGMENT.BUSINESS_SEGMENT_DESC
HAVING (((Year([requested_delivery_date]))=2017));

Answer 1

对于所有插入的记录，它只是一个常量字符串[Fcst/Order/Ship Data].Type。

您可以在SQL Server中执行相同的操作，只需使用单引号而不是双引号。

修改

在SQL Server中，您可以

INSERT INTO foo (type, bar) SELECT 'Hello World' AS type, bazbar FROM baz

或者可能使用[type]，因为这是Transact-SQL中的保留字（CREATE TYPE）。

AS type并不是真的需要，这也可行：

INSERT INTO foo (type, bar) SELECT 'Hello World', bazbar FROM baz

列别名对
很有用

单独测试SELECT部分

自我记录SQL代码（用于非平凡的陈述）

Answer 2

如果您只是专门讨论SELECT "Shipment" as Type，而不是后面的内容，那么正在做的只是将字符串文字＆＃34;发货＆＃34;在它添加的每一行的Type列中。

请参阅：https://docs.microsoft.com/en-us/sql/t-sql/queries/select-clause-transact-sql

INSERT INTO - 访问SQL与SQL Server

2 个答案: