How to concatenate text from multiple rows into a single text string in SQL server?

Question

Consider a database table holding names, with three rows: Peter Paul Mary Is there an easy way to turn this into a single string of `Peter, Paul, Mary`?

Answer 1

If you are using a recent version of SQL Server (2017 or later), you should be able to do this:

SELECT STRING_AGG(my_column_name, ', ') FROM my_table_name;