查詢某個數據庫中某個表的所有列名
SELECT COLUMN_NAME FROM information_schema.COLUMNS WHERE TABLE_SCHEMA = 'db_name' AND TABLE_NAME = 'tb_name';
查詢某個數據庫中某個表的所有列名,並用逗號連接
SELECT GROUP_CONCAT(COLUMN_NAME SEPARATOR ",") FROM information_schema.COLUMNS WHERE TABLE_SCHEMA = 'db_name' AND TABLE_NAME = 'tb_name';