Comma Separated values with SQL Query

Question

My SQL table is like following

City_Code     Post_Code    Post_Code_Description
100           A1           ABC
100           C8           XYZ
100           Z         


        

Answer 1

If you are using MySQL you can use GROUP_CONCAT()

select City_Code, 
     GROUP_CONCAT(Post_Code) Post_Code, 
     GROUP_CONCAT(Post_Code_Description) post_code_description
from yourtable
group by City_Code

For SQL Server you can use STUFF() and FOR XML PATH()

select city_code,
    Stuff((SELECT ', ' + post_code 
            FROM yourtable t2
            where t1.city_code = t2.city_code
            FOR XML path('')),1,1,'') Post_Code,
    Stuff((SELECT ', ' + post_code_description
            FROM yourtable t2
            where t1.city_code = t2.city_code
            FOR XML path('')),1,1,'') post_code_description
from yourtable t1
group by city_code