first thing to do, try to use count(a_column_name) instead of count(*)
----- Original Message ----- To: "Multiple recipients of list ORACLE-L" <[EMAIL PROTECTED]> Sent: Monday, January 27, 2003 2:29 PM > First thought, > > Count(*) and FIRST_ROWS are self contradictory. If you want to count all the > records, how will first_rows help? > > Regards > Naveen > > -----Original Message----- > [mailto:[EMAIL PROTECTED]] > Sent: Monday, January 27, 2003 6:34 PM > To: Multiple recipients of list ORACLE-L > > > Hi List: > > I have the below query which is taking 5 min. 20 sec. to fetch the > records. Can you please let me know as to how do I reduce the responste > time? I have created indexes on Fahrzeug.FZGBRIEF and > Historie.mytechobjekt and also the Oid column is uniquely indexed. I > replaced the FIRST_ROWS hint with RULE hint as a result of which it is > taking 3-4 min. > > select /*+FIRST_ROWS*/ count(*) > > from > > ZPAB.FZGBRIEF B1, > > ZPAB.FAHRZEUG F1, > > ZPAB.HISTORIE H1 > > where > > F1.FZGBRIEF = B1.OID > > AND F1.OID = H1.MYTECHOBJEKT(+) > > AND (H1.CCCONTROL IN(1, 2, 3) > > OR NOT EXISTS > > (SELECT /*+INDEX_FFS(HISTORIE, I_MYTECHOBJEKT) */ ZPAB.FAHRZEUG.OID > FROM ZPAB.FAHRZEUG,ZPAB.HISTORIE > > WHERE ZPAB.FAHRZEUG.OID = ZPAB.HISTORIE.MYTECHOBJEKT and > > ZPAB.FAHRZEUG.oid=F1.oid)) > > AND F1.AMTLICHESKENNZEICHEN LIKE 'DD%' > > Any help in this regard is very much appreciated. > > Thanks and Regards, > > Ranganath > WARNING: The information in this message is confidential and may be legally > privileged. It is intended solely for the addressee. Access to this message > by anyone else is unauthorised. If you are not the intended recipient, any > disclosure, copying, or distribution of the message, or any action or > omission taken by you in reliance on it, is prohibited and may be unlawful. > Please immediately contact the sender if you have received this message in > error. Thank you. > -- > Please see the official ORACLE-L FAQ: http://www.orafaq.net > -- > Author: Krishnaswamy, Ranganath > 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). > > > > DISCLAIMER: > This message (including attachment if any) is confidential and may be privileged. Before opening attachments please check them for viruses and defects. MindTree Consulting Private Limited (MindTree) will not be responsible for any viruses or defects or any forwarded attachments emanating either from within MindTree or outside. If you have received this message by mistake please notify the sender by return e-mail and delete this message from your system. Any unauthorized use or dissemination of this message in whole or in part is strictly prohibited. Please note that e-mails are susceptible to change and MindTree shall not be liable for any improper, untimely or incomplete transmission. > -- > Please see the official ORACLE-L FAQ: http://www.orafaq.net > -- > Author: Naveen Nahata > 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: Amos KABORE 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).
