Convert multiple rows into one with comma as separator [duplicate]

Answer 1

In SQLite this is simpler. I think there are similar implementations for MySQL, MSSql and Orable

CREATE TABLE Beatles (id integer, name string );
INSERT INTO Beatles VALUES (1, "Paul");
INSERT INTO Beatles VALUES (2, "John");
INSERT INTO Beatles VALUES (3, "Ringo");
INSERT INTO Beatles VALUES (4, "George");
SELECT GROUP_CONCAT(name, ',') FROM Beatles;