This will work.But the actual query that I have is a join b/w two tables and not as simple as it looks in the example I had given
SELECT ID,LastModDate FROM Tab I bascially will have to include my complete main query in the sub query with TRUNC(MAX........ This might be costly on the performance. do we have any other approach. thanks -----Original Message----- [mailto:[EMAIL PROTECTED] Sent: Wednesday, May 28, 2003 7:08 PM To: Multiple recipients of list ORACLE-L RB: Try : SELECT ID, LastModDate FROM Tab a WHERE TRUNC(LastModDate) = (Select MAX(TRUNC(LastModDate)) From Tab b) The explanation of the error message follows. RWB =============================================================================================== |-----------------------------------+-----------------------------------> | | | |-----------------------------------+-----------------------------------> >-------------------------------------------------------------------------------| |Error: ORA 937 | | | | | |Text: not a single-group group function | | | | | |-------------------------------------------------------------------------------| | | | | |Cause: A SELECT list cannot include both a group function, such as AVG, COUNT,| | | | | | MAX, MIN, SUM, STDDEV, or VARIANCE, and an individual column | | | | | | expression, unless the individual column expression is included in a | | | | | | GROUP BY clause. | | | | | |Action: Drop either the group function or the individual column expression | | | | | | from the SELECT list or add a GROUP BY clause that includes all | | | | | | individual column expressions listed. | | | | | |. | >-------------------------------------------------------------------------------| ============================================================================================================ Reginald W. Bailey IBM Global Services - ETS SW GDSD - Database Management Your Friendly Neighborhood DBA 713-216-7703 (Office) 281-798-5474 (Mobile) 713-415-5410 (Pager) ============================================================================================================ [EMAIL PROTECTED] Mobile.com To: [EMAIL PROTECTED] Sent by: cc: [EMAIL PROTECTED] Subject: SQL Query Help 05/28/2003 07:14 PM Please respond to ORACLE-L 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 -- Please see the official ORACLE-L FAQ: http://www.orafaq.net -- Author: Basavaraja, Ravindra INET: [EMAIL PROTECTED] Fat City Network Services -- 858-538-5051 http://www.fatcity.com San Diego, California -- Mailing list and web hosting services --------------------------------------------------------------------- To REMOVE yourself from this mailing list, send an E-Mail message to: [EMAIL PROTECTED] (note EXACT spelling of 'ListGuru') and in the message BODY, include a line containing: UNSUB ORACLE-L (or the name of mailing list you want to be removed from). You may also send the HELP command for other information (like subscribing). -- Please see the official ORACLE-L FAQ: http://www.orafaq.net -- Author: INET: [EMAIL PROTECTED] Fat City Network Services -- 858-538-5051 http://www.fatcity.com San Diego, California -- Mailing list and web hosting services --------------------------------------------------------------------- To REMOVE yourself from this mailing list, send an E-Mail message to: [EMAIL PROTECTED] (note EXACT spelling of 'ListGuru') and in the message BODY, include a line containing: UNSUB ORACLE-L (or the name of mailing list you want to be removed from). You may also send the HELP command for other information (like subscribing). -- Please see the official ORACLE-L FAQ: http://www.orafaq.net -- Author: Basavaraja, Ravindra INET: [EMAIL PROTECTED] Fat City Network Services -- 858-538-5051 http://www.fatcity.com San Diego, California -- Mailing list and web hosting services --------------------------------------------------------------------- To REMOVE yourself from this mailing list, send an E-Mail message to: [EMAIL PROTECTED] (note EXACT spelling of 'ListGuru') and in the message BODY, include a line containing: UNSUB ORACLE-L (or the name of mailing list you want to be removed from). You may also send the HELP command for other information (like subscribing).
