Question

我有删除/删除最低 lnr 的程序。代码运行良好。

SELECT * FROM lager; -- Before

CREATE OR REPLACE
PROCEDURE del_min_lager AS
BEGIN
    DELETE FROM Lagerbuchung
    WHERE  LNR = (SELECT MIN(LNR) FROM Lager);
    DELETE FROM Lager
    WHERE  LNR = (SELECT MIN(LNR) FROM Lager);
END del_min_lager;
/

EXECUTE del_min_lager;
SELECT * FROM Lager; -- After

所以我的问题是，如果有的话，我可以让我的输出更好。

我尝试了以下操作：


SELECT * FROM Lager as 'Before';

但它不像在 SSMS 中那样工作。

我想要输出如：

BEFORE
.
.
.
.
.

Answer 1

您可以简单地为状态添加一列

SELECT 'BEFORE' AS status, lager.* FROM lager

有没有办法在 Oracle 中更改输出行名称？

1 个答案: