MYSQL查询-UNION中的ORDER BY-降序

Question

使用Microsoft Access。 是否可以将ORDER BY列排序为Descending？

SELECT * FROM 
(
  SELECT table1.* FROM table1 ORDER BY table1.field1
) DUMMY_ALIAS1

UNION ALL

SELECT * FROM
( 
  SELECT table2.* FROM table2 ORDER BY table2.field1
) DUMMY_ALIAS2

Answer 1

是的-只需在字段名称后添加desc ：

SELECT * FROM 
(
  SELECT table1.* FROM table1 ORDER BY table1.field1 DESC
) DUMMY_ALIAS1

UNION ALL

SELECT * FROM
( 
  SELECT table2.* FROM table2 ORDER BY table2.field1 DESC
) DUMMY_ALIAS2