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我想查找特定ID的最低訪問值和整個表格的最低值。 在一個查詢中。在一個查詢中爲ID和整個表格選擇最小值
MYTAB
ID VISITED
101 2009
102 2010
103 2011
104 2012
105 2013
我可以做一個查詢?
現在我不喜歡:
select
min(visited)
from
mytab
where
id = 100;
,然後我做第二次查詢。
select
min(visited)
from
mytab;
我要的是類似下面(但可以使它更簡單嗎?)
select
min(a.visited),
min(b.visited)
from
(select visited from mytab where id=100) as a,
(select visited from mytab) as b;
Query run for e.g. id 103 and 100 would be:
id 103 will give 2011,2009
id 100 will give null,2009
感謝