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RE: SQL Query Help

From: Basavaraja, Ravindra <Ravindra.Basavaraja_at_T-Mobile.com>
Date: Wed, 28 May 2003 18:24:39 -0800
Message-ID: <F001.005A50F9.20030528182439@fatcity.com>


I had tried this as per Oracle Metalink Note.When I add the group by ID it will display both the records like

2	1/20/2003 2:56:18 AM
1	4/23/2003 10:26:42 PM

but I want to see the only the record with the latest time stamp like
1	4/23/2003 10:26:42 PM

-----Original Message-----
Sent: Wednesday, May 28, 2003 6:25 PM
To: Multiple recipients of list ORACLE-L

Add "group by ID;" as in:

SELECT ID,MAX(LastModDate) FROM Tab
group by ID;

> -----Original Message-----
> From: Basavaraja, Ravindra [mailto:Ravindra.Basavaraja_at_T-Mobile.com]
> Sent: Wednesday, May 28, 2003 8:15 PM
> To: Multiple recipients of list ORACLE-L
> Subject: SQL Query Help
>
>
> i have a query that returns 2 rows with one column being id
> and the other
> being date-time stamp.
>
> i want to select the row with the latest timestamp among those two
> records.they have difference id values
>
> SELECT ID,LastModDate
> FROM Tab
>
> ID LastModDate
> -- -----------
> 2 1/20/2003 2:56:18 AM
> 1 4/23/2003 10:26:42 PM
>
> I want to modify the above query to return the row with id=1
> which has the
> latest timestamp
>
> I tried this
>
> SELECT ID,MAX(LastModDate)
> FROM Tab
>
> getting this error
> OERR: ORA 937 not a single-group group function
>
> how do i get this work.
>
> Thanks
>

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-- 
Author: Basavaraja, Ravindra
  INET: Ravindra.Basavaraja_at_T-Mobile.com

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Received on Wed May 28 2003 - 21:24:39 CDT

Original text of this message

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