将表数据简单旋转90度,不需要聚合,原表列数大于行数。注意指定是oracle 9i
  将下表一数据:
 A                    b           c           d           e           
 -------------------- ----------- ----------- ----------- ----------- 
 
x                    1           2           3           4
 y                    5           6           7           8
 z                    9           10          11          12 
 转化成如下结果:
 
a                    x          y          z         
  -------------------- ---------- ---------- ---------- 
 b                    1          5          9
 c                    2          6          10
 d                    3          7          11
 e                    4          8          12