Oracle10g行變列 (decode的用法)
數據庫原來的數據:
修改後的數據:
select ball "球",sum(decode(type,'紅',num,0)) "紅",
sum(decode(type,'綠',num,0)) "綠",
sum(decode(type,'藍',num,0)) "藍"
from t_ball group by ball
到此結束!!!
Oracle10g行變列 (decode的用法)
數據庫原來的數據:
修改後的數據:
select ball "球",sum(decode(type,'紅',num,0)) "紅",
sum(decode(type,'綠',num,0)) "綠",
sum(decode(type,'藍',num,0)) "藍"
from t_ball group by ball
到此結束!!!
導出某個表的數據set heading offset linesize 1000set pagesize 0set trimspool onset t