Question

我有两个单独的表：

表1 - id，news，date_added
表2 - id，news，extra，date_added

是否可以查询表和提取数据ORDER BY date_added
感谢

Answer 1

试试这个

select id, news, date_added,"" as extra
from table1
union all
select id, news, date_added,extra
from table1
ORDER BY date_added