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Restricting the Rows

Author

Topic

GaneshRamanan
Starting Member

40 Posts

Posted - 2011-02-02 : 06:13:11

Hi,

I wants to restrict below rows, i need only 5 rows from Each parameterid based on recent dates.

ParameterID Parameter Date SubParameter
2 Anaemia 2011/01/28 Yes
2 Anaemia 2011/01/27 Yes
2 Anaemia 2011/01/26 Yes
2 Anaemia 2011/01/25 Yes
2 Anaemia 2011/01/24 Yes
3 Pedal Edema 2011/02/03 Yes
3 Pedal Edema 2011/01/28 Yes
3 Pedal Edema 2011/01/27 Yes
3 Pedal Edema 2011/01/26 Yes
3 Pedal Edema 2011/01/25 Yes
3 Pedal Edema 2011/01/24 Yes
4 CVS 2011/02/03 Normal
4 CVS 2011/01/28 Normal
4 CVS 2011/01/27 Normal
4 CVS 2011/01/26 Normal
4 CVS 2011/01/25 Normal
4 CVS 2011/01/24 Normal

webfred
Master Smack Fu Yak Hacker

8781 Posts

Posted - 2011-02-02 : 07:04:13

select ParameterID, Parameter, Date, SubParameter from
(select row_number() over (partition by ParameterID order by Date DESC) as rownum,* from Your_Table)dt
where rownum < 6

No, you're never too old to Yak'n'Roll if you're too young to die.

GaneshRamanan
Starting Member

40 Posts

Posted - 2011-02-02 : 08:31:20

Hi,

Thanks for your support.

Ganesh

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