oracle 10g pl/sql條件循環選擇

Question

是否可以在PL/SQL 10g中做這樣的事情？

if user_is_goat = 1 then 
    for item_rec in (select * from pricing_for_goats) 
else 
    for item_rec in (select * from pricing_for_non_goats) 
end if; 
loop 
. 
. 
end loop; 

看來，當Oracle看到「在選擇REC *從雙反」，預計「循環」，以立即採取後續。我在循環中的代碼是很多行，我不想保存它的兩個副本。

Answer 1

下面

嘗試查詢，這將檢查是否從其他for_goats可變user_is_goat = 1並返回數據它將從for_non_goats

for item_rec in 
(
    select * from pricing_for_goats where user_is_goat = 1 
    union 
    select * from pricing_for_non_goats where user_is_goat <> 1 
) 
loop 
..... 
..... 
end loop;