RE: Using miss-spelled hint changes explain plan ...
Title: Using miss-spelled hint changes explain plan ... If you miss-spell a hint,it is ignored. select /*+ FULL (PERSON) */ full_name from person where emplid = '123456'; Execution Plan-- 0 SELECT STATEMENT Optimizer=CHOOSE (Cost=56 Card=1 Bytes=25) 1 0 TABLE ACCESS (FULL) OF 'PERSON' (Cost=56 Card=1 Bytes=25) select /*+ FULLOFIT (PERSON) */ full_name from person where emplid = '123456'; Execution Plan-- 0 SELECT STATEMENT Optimizer=CHOOSE (Cost=2 Card=1 Bytes=25) 1 0 TABLE ACCESS (BY INDEX ROWID) OF 'PERSON' (Cost=2 Card=1 Bytes=25) 2 1 INDEX (UNIQUE SCAN) OF 'PK_EMPLID_1' (UNIQUE) (Cost=1 Card=1) Rob Caldwell DBA - United Space Alliance www.unitedspacealliance.com -Original Message-From: Jamadagni, Rajendra [mailto:[EMAIL PROTECTED]Sent: Thursday, November 20, 2003 10:20 AMTo: Multiple recipients of list ORACLE-LSubject: Using miss-spelled hint changes explain plan ... Okay, I found this by accident ... I was trying to get explain plan on a query that involved a in-line-query that selects from financials database. This in-line query was alias'd as "A". Current cost of query was ~2800. So, to test for explain plan I added hint /*+ diving_site(A) */ -- note the spelling mistake here ... the cost of the query changed to 25. I corrected the spelling mistake and make it driving_site, cost went back to ~2900. Has anyone experienced this before? Our original db is 9202 and financials is on a RBO, 805 db accessed through a db_link. Raj Rajendra dot Jamadagni at nospamespn dot com All Views expressed in this email are strictly personal. QOTD: Any clod can have facts, having an opinion is an art ! **This e-mail message is confidential, intended only for the named recipient(s) above and may contain information that is privileged, attorney work product or exempt from disclosure under applicable law. If you have received this message in error, or are not the named recipient(s), please immediately notify corporate MIS at (860) 766-2000 and delete this e-mail message from your computer, Thank you.**5
RE: URGENT!!! My 9i databases are not shutting down cleanly/cons
Do you see any OS processes with high CPU usage? Rob Caldwell DBA - United Space Alliance www.unitedspacealliance.com -Original Message- [mailto:Murali_Pavuloori/[EMAIL PROTECTED] Sent: Wednesday, August 20, 2003 2:20 PM To: Multiple recipients of list ORACLE-L cleanly/cons Are you sure there are no jobs running during the time you are trying to shutdown. Murali. [EMAIL PROTECTED] tate.fl.usTo: Multiple recipients of list ORACLE-L [EMAIL PROTECTED] Sent by: cc: [EMAIL PROTECTED] Subject: RE: URGENT!!! My 9i databases are not shutting down cleanly/cons om 08/20/2003 01:59 PM Please respond to ORACLE-L No errors in the alert logs, no traces no ORA- but they don't shutdown cleanly and so I don't get consistent backups (this is every once in awhile). -Original Message- From: Josh Collier [mailto:[EMAIL PROTECTED] Sent: Wednesday, August 20, 2003 12:50 PM To: Multiple recipients of list ORACLE-L Subject: RE: URGENT!!! My 9i databases are not shutting down cleanly/cons What exactly goes wrong? -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] Sent: Wednesday, August 20, 2003 9:25 AM To: Multiple recipients of list ORACLE-L Subject: RE: URGENT!!! My 9i databases are not shutting down cleanly/cons There seems to be a problem with consistent shutdowns in 9i Oracle 9i 64bit 9.0.1.3.0 - infrastructure database that comes with the application server 9.2.0.1.0 - that is the version of RDBMS we are running. Does anyone have problems shutting down their databases consistently with 9i? -- Please see the official ORACLE-L FAQ: http://www.orafaq.net -- Author: INET: Murali_Pavuloori/[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: Caldwell, Robert A 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).
