With Nums As
(Select Level Num From Dual Connect By Level < 10)
Select Max(Decode(a, 1, Exp)) a, Max(Decode(a, 2, Exp)) b, Max(Decode(a, 3, Exp)) c, Max(Decode(a, 4, Exp)) d, Max(Decode(a, 5, Exp)) e,
Max(Decode(a, 6, Exp)) f, Max(Decode(a, 7, Exp)) g, Max(Decode(a, 8, Exp)) h, Max(Decode(a, 9, Exp)) i
From (Select a.Num a, b.Num b, a.Num || '*' || b.Num || '=' || Lpad(a.Num * b.Num, 2, ' ') Exp From Nums a, Nums b Where a.Num <= b.Num)
Group By b
(Select Level Num From Dual Connect By Level < 10)
Select Max(Decode(a, 1, Exp)) a, Max(Decode(a, 2, Exp)) b, Max(Decode(a, 3, Exp)) c, Max(Decode(a, 4, Exp)) d, Max(Decode(a, 5, Exp)) e,
Max(Decode(a, 6, Exp)) f, Max(Decode(a, 7, Exp)) g, Max(Decode(a, 8, Exp)) h, Max(Decode(a, 9, Exp)) i
From (Select a.Num a, b.Num b, a.Num || '*' || b.Num || '=' || Lpad(a.Num * b.Num, 2, ' ') Exp From Nums a, Nums b Where a.Num <= b.Num)
Group By b
Order By a;
效果:
