oracle应用之sql小写

       本人不喜欢在sql里面大小写混合在一起，每次看到别人的sql，总是要转换为小写，如以下sql：

       

WITH t AS
( select  date'2014-05-06' time1, 1 type, 100 times from dual union all
select  date'2014-05-06', 2, 200  from dual union all
select  date'2014-05-06', 3, 400  from dual union all
select  date'2014-05-07', 2, 50   from dual union all
select  date'2013-06-01', 1, 100  from dual)
SELECT time2, SUM(nvl(times, 0))
  FROM (SELECT *
          FROM (SELECT DATE '2014-05-01' + LEVEL - 1 time2
                  FROM dual
                CONNECT BY LEVEL <=
                           (SELECT to_char(last_day(DATE '2014-05-01'), 'dd')
                              FROM dual)) t1
          LEFT JOIN t
            ON t1.time2 = t.time1)
 GROUP BY time2
 ORDER BY 1;

   最简单的方法是使用lower函数,运行把原sql粘贴进去就可以了，不需要额外操作：

      

select lower(q'[&1]') from dual

    如下所示：

  

  

  

 

     全文完。