将varchar值转换为数据类型时转换失败int

Question

我有一个声明为包含所有数字的字段的varchar（1000）列，如下所示。 我想执行下面的脚本。我需要这个工作，请

Declare @PostalCode varchar(1000)=0 
    set @PostalCode ='7005036,7004168,7002314,7001188,6998955' 

Select hl.* From CountryLocation cl 
INNER JOIN refPostalCodes pc ON pc.PostalCode = hl.PostalCode 
where pc.Postalcode in (@PostalCode) and pc.notDeleted = 1 

Answer 1

它看起来像你想使用sp_executesql：

Declare @PostalCode varchar(1000)=0 
    set @PostalCode ='7005036,7004168,7002314,7001188,6998955' 

declare @sql nvarchar(4000) //didn't count the chars... 

select @sql = N'Select hl.* From CountryLocation cl 
INNER JOIN refPostalCodes pc ON pc.PostalCode = hl.PostalCode 
where pc.Postalcode in (' + @PostalCode + ') and pc.notDeleted = 1' 

exec sp_executesql @sql 

您需要编码这种方式时要非常小心有关SQL注入。