oracle - 如何在查询中使用 MINUS ORDER BY？

Question

我想对 MINUS 查询的结果进行ORDER BY。

我的第一次尝试没有成功:

SELECT *
FROM Table1
MINUS
SELECT *
FROM table2
WHERE table2.foo = 'bar'
ORDER BY foo

你会怎么做？

哎呀:我正在执行ORDER BY table2.foo，而不仅仅是ORDER BY foo。现在可以了。

Answer 1

但是，要回答您的问题，您可以使用 with 查询:

with tmp_minus as (
    SELECT *
    FROM Table1
    MINUS
    SELECT *
    FROM table2
    WHERE table2.foo = 'bar'
) 
select * from tmp_minus 
ORDER BY foo

您还应该能够进行子选择:

select * from (
    SELECT *
    FROM Table1
    MINUS
    SELECT *
    FROM table2
    WHERE table2.foo = 'bar'
) tmp_minus 
ORDER BY foo