在Oracle sql中,选择First Row同时选择其他东西

时间:2014-12-11 19:31:06

标签: sql oracle greatest-n-per-group

我需要在下面的查询中添加什么才能获得此查询后显示的第一行?

查询:

  SELECT column1,
         column2,
         MIN (column3),
         MIN (colmun4)
    FROM table
   WHERE column0 = 'value'
GROUP BY column1, column2

当前结果:

column1  column2  column3  column4
30187    C        201330   1/3/2013 2:49:35 PM    //I want this row only
33459    C        201330   1/3/2013 4:32:42 PM
90855    C        201390   3/28/2013 9:20:44 AM
96077    RA       201390   7/1/2013 11:31:46 AM

1 个答案:

答案 0 :(得分:1)

select * from (
SELECT column1,
         column2,
         MIN (column3),
         MIN (colmun4)
    FROM table
   WHERE column0 = 'value'
GROUP BY column1, column2)
where rownum = 1

或者如果你正在使用oracle 12c,你可以使用下面的

    SELECT column1,
             column2,
             MIN (column3),
             MIN (colmun4)
        FROM table
       WHERE column0 = 'value'
    GROUP BY column1, column2
OFFSET 0 ROWS FETCH NEXT 1 ROWS ONLY;