Question

在此站点上，我找到了sql函数last（）LAST() 我为Oracle使用了语法，但出现了一个错误。

SQL> select symbol from ticker
  2  order by price DESC
  3  where rownum <=1;
where rownum <=1
*
ERROR at line 3:
ORA-00933: SQL command not properly ended

我收到一条错误消息，即使命令已正确完成

Answer 1

您似乎想要这个：

select t.*
from (select symbol
      from ticker
      order by price DESC
     ) t
 where rownum <= 1;

或者在更现代的Oracle版本中：

select symbol
from ticker
order by price desc
fetch first 1 row only;

或者，如果您想玩得开心：

select max(symbol) keep (dense_rank first order by price desc)
from ticket;

where条件先于order by 。

选择表的最后一行，Oracle 12c

1 个答案: