#db_name为数据库名称,table_name为表名称
SELECT COLUMN_NAME FROM information_schema.COLUMNS
WHERE TABLE_SCHEMA = 'db_name' AND TABLE_NAME = 'table_name';
information_schema,里面存放着所有数据库的信息(比如表名、 列名、对应权限等),更新关于information_schema的信息可参考https://blog.youkuaiyun.com/p1306252/article/details/119783373