Question

我想转换值

2to5experience

3to7experience

要 Minexperience：

2
3

Maxexperience

5
7

所以我创建了以下查询，

select cast(substring(Cast(Experience AS VARCHAR(50)),1,1)*365*24*60*60 as int) as Experience 
      from requirementsdetailsfororganization

上面的工作正在进行中。当我像下面这样更新查询时，我收到一个错误。

select 'Insert into Jobs(requirementId,organizationId,Minexperience)values(' + 
   Cast(o.RequirementID as varchar(50))+',' +
   Cast(o.OrganizationID as varchar(50))+',' +
   cast(substring(CAST(Experience AS VARCHAR(50)),1,1)*365*24*60*60 as int)+')'
   FROM RequirementsDetailsforOrganization AS o

显示错误

“转换varchar值时转换失败'）'到数据类型int”

有什么想法吗？

Answer 1

在您选择的倒数第二行中，您将表达式转换为int，然后添加（使用+）)。由于+左侧的值是整数，因此SQL Server会尝试将+右侧的操作数转换为整数。

尝试将广播组件更改为int，以便您将其转换为varchar：

select 'Insert into Jobs(requirementId,organizationId,Minexperience)values(' + 
   Cast(o.RequirementID as varchar(50))+',' +
   Cast(o.OrganizationID as varchar(50))+',' +
   cast(substring(CAST(Experience AS VARCHAR(50)),1,1)*365*24*60*60 as varchar(50))+')'
   FROM RequirementsDetailsforOrganization AS o

注意：

Experience到varchar的演员可能是多余的。

Answer 2

尝试以下步骤。

--Create Table :
Create Table #Table
(
Name Varchar(50),
Experience Varchar(20)
)
Go

-- Insert Values :
Insert into #Table Values('Tom','0to0experience')
Insert into #Table Values('Victor','0to1experience')
Insert into #Table Values('Mark','11to12experience')
Go

--View Data
Select  * from #Table

--Using CharIndex  and Substring :
Select Name,
Substring(Experience,1,CharIndex('to',Experience)-1) as Yearfrom,
Substring(Experience,(CharIndex('to',Experience)+2),Len(Replace(Experience,'experience','')) - (CharIndex('to',Experience)+1)) as YearTo
from #Table

--Clean Up:
Drop Table #Table

创建选择查询如何使用强制转换将varchar转换为int

2 个答案: