Question

问题：我想添加＆＃34; N / A＆＃34;进入我的@SQL SELECT

查询：我可以添加＆＃39;知道＆＃39;值或者我是否需要声明它们并按照tableName添加？

测试：我试过了：

＆＃39; +＆＃39; N / A＆＃39; +＆＃39; 和＆＃39; +＆＃34; N / A＆＃34; +＆＃39;

注意：如果我删除了N / A行代码，那就可以了。

错误：列名无效＆＃39; N / A＆＃39;。

代码：

USE [DB]
GO
/****** Object:  StoredProcedure [dbo].[spExcelIntoTable]    Script Date: 01/10/2015 13:27:05 ******/
SET ANSI_NULLS ON
GO
SET QUOTED_IDENTIFIER ON
GO

ALTER PROCEDURE [dbo].[spExcelIntoTable]
(
    @tableName          NVARCHAR(256)     
)
AS
BEGIN

DECLARE @sql NVARCHAR(MAX)

SET @sql = 'SELECT a.ID AS ID,  
a.UPRN,p.BuildingNo,
p.Street,p.Postcode ,
a.ItemRef,a.SurveyDate ,
a.OverallRiskCategory ,
a.SurveyorsComments 

INTO  TEMP_' + @tableName + '

FROM TblAsbestos 

AS a JOIN TblProperty 
As p on a.UPRN = p.UPRN
WHERE a.OverallRiskCategory <> "N/A"
ORDER BY a.OverallRiskCategory'

EXEC (@sql)

END
GO

Answer 1

双引号是SQL Server中的对象标识符，您需要使用两个单引号来使用字符串leteral。

目前，sql server将“N / A”视为列名"N/A"

SET @sql = 'SELECT a.ID AS ID,  
a.UPRN,p.BuildingNo,
p.Street,p.Postcode ,
a.ItemRef,a.SurveyDate ,
a.OverallRiskCategory ,
a.SurveyorsComments 

INTO  TEMP_' + @tableName + '

FROM TblAsbestos 

AS a JOIN TblProperty 
As p on a.UPRN = p.UPRN
WHERE a.OverallRiskCategory <> ''N/A''
ORDER BY a.OverallRiskCategory'

Answer 2

对于动态sql代码，请使用double '：

WHERE a.OverallRiskCategory <> ''N/A''

使用SET @sql时如何在SQL字符串中插入值

2 个答案: