组合列名导致错误

试试这个:

select 
  case when status='R' then 'Resign'
       when status='A' then 'Active' 
  end as status1, 
  Program_name + ' (' + convert(varchar, emp_card_no) + ') ' as program_details,
* 
from GetEmployeeDetails
Where emp_name ='ABHAY ASHOK MANE'and STATUS= 'A' ORDER BY EMP_NAME

如果需要括号,请使用以下内容:

select 
  case when status='R' then 'Resign'
       when status='A' then 'Active' 
  end as status1, 
  Program_name + ' (' + convert(varchar(10), emp_card_no)+')' as program_details,
* 
from GetEmployeeDetails
Where emp_name ='ABHAY ASHOK MANE'and STATUS= 'A' ORDER BY EMP_NAME

铸造 将Int值列转换为VARCHAR:

在您的查询中 铸造emp_card_no 至VARCHAR

select 
    case when status='R' then 'Resign'
    when status='A' then 'Active' end as status1, 
    [Program_name] + ' ' + CAST(emp_card_no AS VARCHAR(50)) as program_details,
* 
from GetEmployeeDetails
Where emp_name ='ABHAY ASHOK MANE'and STATUS= 'A' ORDER BY EMP_NAME

您可以使用concat进行内部转换。。

select case when status='R' then 'Resign'
when status='A' then 'Active' end as status1, 
 concat(Program_name, ' ', emp_card_no) as program_details,
* from GetEmployeeDetails
Where emp_name ='ABHAY ASHOK MANE'and STATUS= 'A' ORDER BY EMP_NAME

可以对字符串类型值进行列组合。因此,如果没有,则必须将列转换为varchar数据类型。

以下是您的解决方案 案例陈述的一个改进。

select 
case status 
   when 'R' 
      then 'Resign'
   when 'A' 
      then 'Active' 
end as status1, 
Program_name + ' ' + convert(varchar(50),emp_card_no) as program_details,
* 
from 
GetEmployeeDetails
where 
emp_name = 'ABHAY ASHOK MANE'
and STATUS = 'A' 
order by
EMP_NAME