Creo que GROUP_CONCAT
es lo que buscas:
SELECT Title_ID,
Title,
GROUP_CONCAT(au_LName ORDER BY au_Ord) AS Authors
FROM Books
GROUP BY Title_ID, Title;
Creo que GROUP_CONCAT
es lo que buscas:
SELECT Title_ID,
Title,
GROUP_CONCAT(au_LName ORDER BY au_Ord) AS Authors
FROM Books
GROUP BY Title_ID, Title;