如何将全名字段中的名字、中间名和姓氏拆分为 FirstName（名字和中间名）和 LastName（姓氏）

Question

First Name              Last Name
Saafiayh Sal Radiqah    Adams
Abdurahmaan             Kareem
Jean-Paul               De-Beer

'FirstName' = substring(d.FullName, 1, (charindex(' ', d.FullName + ' ')-1)), 'Surname' = substring(d.FullName, len(d.FullName)-charindex(' ',reverse(d.FullName))+1,len(d.FullName))

Answer 1

如果姓氏中没有空格，则可以执行以下操作。

with cte (txt) as 

(select 'Ben Burr' union all 
select 'Ben J Burr')

select replace(txt,right(txt,charindex(' ',reverse(txt))),'') as first_name --replaces last name with nothing,
       right(txt,charindex(' ',reverse(txt))-1) as last_name --gets the name after the last occurrence of a space
from cte;

使用cross apply的稍微不那么冗长的方法

with cte (txt) as 

(select 'Ben Burr' union all 
select 'Ben J Burr')

select replace(txt,' ' + last_name,'') first_name, 
       last_name
from cte t1
cross apply (select right(txt,charindex(' ',reverse(txt))-1) last_name) t2;