plsql - oracle 10g pl/sql 条件for循环选择

Question

10g 中的 PL/SQL 是否可以做这样的事情？

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;

似乎当oracle看到“for rec in select * from Dual”时，它期望“loop”立即跟随。我的循环中的代码有很多行，我不想维护它的 2 个副本。

Answer 1

尝试下面的查询，这将检查变量 user_is_goat = 1 并从 for_goats 返回数据，否则将从 for_non_goats 返回数据

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;