MySQL developer background

Concatenate string on MySQL

CONCAT(column1,' ',column2)

http://www.ntu.edu.sg/home/ehchua/programming/sql/MySQL_Beginner.html


Introduction to MySQL GROUP_CONCAT function
http://www.mysqltutorial.org/mysql-group_concat/

SELECT GROUP_CONCAT(DISTINCT country)
FROM customers;

http://www.mysqltutorial.org/mysql-group_concat/