Split string in database row and copy results to different rows - SQL Server

Question

I created an application to send mail to users. I\'m using a database where some users have more than one email address assigned.

Name                                


        

Answer 1

In Oracle

Here is a mock for provided example:

select 'BusinessXPTO' name, 'mail1@xpto.com;mail2@xpto.com' mail from dual;

Here is how to split the mail column into separate rows

select 'BusinessXPTO' name, regexp_substr('mail_1@xpto.com;mail_2@xpto.com','[^;]+',1, rn) mail  
from dual 
cross join 
    (select rownum rn from 
        (select max(length(regexp_replace('mail_1@xpto.com;mail_2@xpto.com', '[^;]+'))) + 1 mx from dual) 
    connect by level <= mx ) 
where regexp_substr ('mail1@xpto.com;mail2@xpto.com', '[^;]+', 1, rn) is not null 
order by rn;

Here is the result

NAME            MAIL
BusinessXPTO    mail_1@xpto.com
BusinessXPTO    mail_2@xpto.com