可以使用SELECT语句完成这个查询:SELECT id, GROUP_CONCAT(name SEPARATOR ',') FROM table1 LEFT JOIN table2 ON table1.id = table2.id WHERE table2.id = X GROUP BY table1.id;
可以使用SELECT语句完成这个查询:SELECT id, GROUP_CONCAT(name SEPARATOR ',') FROM table1 LEFT JOIN table2 ON table1.id = table2.id WHERE table2.id = X GROUP BY table1.id;