INSERT INTO - 访问SQL与SQL Server

Question

我有一个随机问题，当我试图为INSERT INTO语句获取Access SQL代码并转换为更有组织的SQL Server版本时，出现了这个问题。下面是Access的SQL，我可以告诉除了第一个SELECT - “SELECT”Shipment“AS Type ...之外的所有东西都指向了什么？我没有看到它从中提取数据的任何源，并且它被称为表达式访问的设计图，我真的只是在SQL Server的工作，所以我希望有人能帮助我破译意图是在这里。谢谢。

'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

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

你会做同样的SQL Server中，只需用单引号代替双引号。

编辑：

在SQL Server中，你会做

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

或者是使用[type]，因为这是在Transact-SQL（CREATE TYPE）保留字。

AS type是不是真的需要，这将很好的工作：

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

列别名是有用的

• 测试SELECT部分​​分别
• 自我记录的SQL代码（用于非平凡的陈述）

Answer 2

如果你在说话g，特别是关于SELECT "Shipment" as Type，而不是接下来的内容，那么所做的只是将字符串文字“Shipment”放入其添加的每行的Type列中。

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