How to append two columns into one column in SQL?

Question

I have two columns in my Table called as Workers - Technicians. In Workers I have name of workers, and in Technicians I have name of technicians who is working in company. Here is how it looks:

Workers                              Technicians

Andy                  Kevin
Conan                 Jason
Jay                   Ray
Donald                Daryl
Martin                .
Mark                  .(rows goes on)
.
.(rows goes on)       

What I want to do is to append these rows and having a column called Employees. Here what i want:

Employees

Andy                  
Conan                 
Jay                   
Donald               
Martin                
Mark
Kevin
Jason
Ray
Daryl
.
.

I don't want to create another table, I just want to add a new column. How would i do this?

Answer 1

An union statement should do the job here. Something like this:

 select Name from Workers-Technitians where Worker not null
 UNION 
 select Name from Workers-Technitians where Technitian not null

Keep in mind that both queries must have an equal column count when using an union