Error Signaled In Parallel Query
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in parallel query server ORA-12801 One of the greatest achievements of Oracle database software is its ability to process massive sums of information into a multitude of tables and functions. The downside is that in any system, dealing with huge amounts of data can naturally carry some headaches and frustration along the way. The ORA-12801 would most error signaled in parallel query server p013 easily fall into this category, an Oracle error emanating most often in response to errors when processing large jobs. The Problem The ORA-12801 is an Oracle error that has some confusing origins, but is described as an error resulting in some form from a parallel query server. The error frequently accompanies another error, often the ORA-01652 (which concerns an inability to extend the temp segment in a tablespace). The ORA-12801 is essentially a general error, a sort of catchall for parallel query issues. At this juncture, some of you may be wondering yourselves, “What is a parallel query?” First showing up in later versions of Oracle7, a parallel query option lets multiple processes request and receive data and perform operations at the same time. As you would imagine, this can greatly enhance the speed of the system. To achieve this kind of efficiency, there are several conditions for the parallel query that require attention. So what are those conditions and how do they pertain to resolving an ORA-12801
here for a quick overview of the site Help Center Detailed answers to any questions you might have Meta Discuss the workings and policies of this site About Us Learn more about error signaled in parallel query server Stack Overflow the company Business Learn more about hiring developers or posting ads with error signaled in parallel query server p001 us Stack Overflow Questions Jobs Documentation Tags Users Badges Ask Question x Dismiss Join the Stack Overflow Community Stack Overflow is error signaled in parallel query server p003 a community of 4.7 million programmers, just like you, helping each other. Join them; it only takes a minute: Sign up ORA-12801: error signaled in parallel query server P004 and ORA-01555: snapshot too old up https://www.tekstream.com/resources/ora-12801-error-signaled-in-parallel-server/ vote 0 down vote favorite I am executing a insert into ... select ... from ... where ... SQL and got following error using Oracle: java.sql.SQLException: ORA-12801: error signaled in parallel query server P004 ORA-01555: snapshot too old: rollback segment number 32 with name "_SYSSMU32_2039035886$" too small I read the following doc: http://www.dba-oracle.com/t_ora_12801_parallel_query.htm and http://www.dba-oracle.com/t_ora_01555_snapshot_old.htm Saying ORA-12801 is caused by no enough processors to support parallel query. ORA-01555 error relates http://stackoverflow.com/questions/29579352/ora-12801-error-signaled-in-parallel-query-server-p004-and-ora-01555-snapshot to insufficient undo storage or a too small value for the undo_retention parameter. But how can I check related parameters to avoid such issue recur? sql oracle oracle11g oracle10g share|improve this question asked Apr 11 '15 at 15:04 coderz 1,57641333 add a comment| 1 Answer 1 active oldest votes up vote 3 down vote accepted From the manual: ORA-12801: error signaled in parallel query server string Cause: A parallel query server reached an exception condition. Action: Check the following error message for the cause, and consult your error manual for the appropriate action. This is a generic error message and almost never has anything to do with not enough processors. This is an example of how the site you linked to often contains lots bad or outdated information. Maybe 17 processes was "a lot" 17 years ago, but it's not today. Unfortunately, that site is often the first result from Google. You can check the UNDO retention, which is the amount of time in seconds, like this: select value from v$parameter where name = 'undo_retention' Once again, see the manual for more information on the parameter. share|improve this answer answered Apr 11 '15 at 21:08 Jon Heller 17.2k32561 add a comment| Your Answer draft saved draft discard
and ora-01722 when using PARALLEL hint If this is your first visit, be sure to check out the FAQ by clicking the link above. You may have to register before you can http://www.dbasupport.com/forums/showthread.php?42292-ora-12801-and-ora-01722-when-using-PARALLEL-hint post: click the register link above to proceed. To start viewing messages, select the forum that you want to visit from the selection below. Results 1 to 6 of 6 Thread: ora-12801 and ora-01722 when using PARALLEL hint Tweet Thread Tools Show Printable Version Email this Page… Subscribe to this Thread… Display Linear Mode Switch to Hybrid Mode Switch to Threaded Mode 04-06-2004,04:24 PM #1 samdba error signaled View Profile View Forum Posts Advisor Join Date Dec 2001 Location USA Posts 620 ora-12801 and ora-01722 when using PARALLEL hint Hi all, I am getting foll. error when using PARALLEL hint and works fine without the hint. ora-12801: error signaled in parallel query server P005 ora-01722: invalid number This error comes on the foll. line in SQL statement. AND papfa.person_id = DECODE(haaif.attribute3,NULL,papfss.person_id,TO_NUMBER(haaif.attribute3)) What could be the error signaled in reason? Thanks in Adv. Sam ------------------------ To handle yourself, use your head. To handle others, use your heart Reply With Quote 04-06-2004,04:41 PM #2 slimdave View Profile View Forum Posts Visit Homepage Foreign Script Kiddie Join Date Aug 2002 Location Colorado Springs Posts 5,253 haaif.attribute3 contains strings that cannot be converted to numbers David Aldridge, "The Oracle Sponge" Senior Manager, Business Intelligence Development XM Satellite Radio Washington, DC Oracle ACE Reply With Quote 04-06-2004,04:52 PM #3 jmodic View Profile View Forum Posts Super Moderator Join Date Dec 2000 Location Ljubljana, Slovenia Posts 4,439 Originally posted by slimdave haaif.attribute3 contains strings that cannot be converted to numbers Most obvous answer. However: how come the same SQL executes fine without PARALLEL hint, as the original poster indicates (if this is actualy true)? It smells more as a bug to me, if what original poster states is true.... Jurij Modic ASCII a stupid question, get a stupid ANSI 24 hours in a day .... 24 beer in a case .... coincidence? Reply With Quote 04-07-2004,10:13 AM #4 samdba View Profile View Forum Posts Advisor Join Date Dec 2001 Location USA Posts 620 Folks, I figured it out. In one of the ta