火鳥SQL選擇多行

Question

我有一個像

Point X Y  Z 
1  100 100 50 
2  110 120 50.34 
3  145 155 56 

在火鳥2.5表我怎樣才能做一個選擇查詢，選擇點1和點3的結果

point1 P1X P1Y P1Y point2 P2X P2Y P2Z 
    1  100 100 50 3  145 155 56 

Answer 1

什麼你真想做的事有點不清楚。下面返回所需的結果：

select min(point) as point1, min(x) as p1x, min(y) as p1y, min(z) as p1z, 
     max(point) as point2, max(x) as p2x, max(y) as p2y, max(z) as p2z 
from t; 

或者，你可能想：

select p1.*, p2.* 
from t p1 join 
    t p2 
    on p1.point = 1 and p2.point = 3;