Oracle Error An Error Has Happened Error Code 1031
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01, 2013 - 2:35 pm UTC Category: Database � Version: 11.1.0.7 Whilst you are here, check out some content from the AskTom team: FIRST_ROWS vs FIRST_ROWS_n Latest Followup You
Ora-06512
Asked We have recently upgraded one of our main databases from 10.2.0.4 ora-00001 to 11.1.0.7, and we used SQL Plan Baselines to try to minimize the impact of many plan changes. We
My Oracle Support
are running a job to evaluate and evolve new plans captured into the baseline (calls DBMS_SPM.EVOLVE_SQL_PLAN_BASELINE). We would like some better understanding of this evaluation process. Some specifics: - Can you shed any light on how the 'Compund Improvement Ratio' is calculated, what the threshhold is (I believe it is 1.5 but have not seen that in writing), and whether there is any way to influence the calculation or the threshhold? Consider the following: ------------------------------------------------------------------------------- Evolve SQL Plan Baseline Report ------------------------------------------------------------------------------- Inputs: ------- SQL_HANDLE = SYS_SQL_20f6c3ac8758cf7d PLAN_NAME = SYS_SQL_PLAN_8758cf7d9c53bef8 TIME_LIMIT = DBMS_SPM.AUTO_LIMIT VERIFY = YES COMMIT = YES Plan: SYS_SQL_PLAN_8758cf7d9c53bef8 ----------------------------------- Plan was verified: Time used 6.36 seconds. Failed performance criterion: Compound improvement ratio < 1 Baseline Plan Test Plan Improv. Ratio ------------- --------- ------------- Execution Status: COMPLETE COMPLETE Rows Processed: 0 0 Elapsed Time(ms): 5862 36 162.83 CPU Time(ms): 210 32 6.56 Buffer Gets: 6256 6261 1 Disk Reads: 1266 5 253.2 Direct Writes: 0 0 Fetches: 1266 2 633 Executions: 1 1 ------------------------------------------------------------------------------- Report Summary ------------------------------------------------------------------------------- Number of SQL plan baselines verified: 1. Number of SQL plan baselines evolved: 0. My first impression is: significant improvements in elapsed time and CPU time, but the low score seems to be driven by Buffer Gets. (Or, from some other examples, it may be driven by the least-improved measure.) But this looks like a plan we would want. We can certainly force it to evolve, but if we can adjust the weightings and/or threshhold, it may be something we would like to consider. Some other questions related to this process: - When the plans are tested and compared, what bind variables are used? I would think the b
the error, the probable cause, and the recommended action. Each error code corresponds to an exception class. See "Runtime and Development Exceptions" for more information. Format: A description shown in the actual exception thrown. Cause: The most probable cause for the error. Action: Suggestions for resolving the error. Descriptor Exceptions (1 - 176) Error code: 1 ATTRIBUTE_AND_MAPPING_WITH_INDIRECTION_ MISMATCH Cause:
It is ORATOP, to monitor databases real time like top of unix flavours. It is pretty much like MOATS (tool from Tanel Poder and Adrian Billington and RAC version by Jagjeet Singh), with a bit http://orana.info/author/coskan/ better output (more...) Direct Path Reads Again Database Management and Performance coskan | Apr 19, https://books.google.gr/books?id=TD5eibhYyd8C&pg=PA194&lpg=PA194&dq=oracle+error+an+error+has+happened+error+code+1031&source=bl&ots=buKTldHDmo&sig=a9_duWqalL1NxiWJzRHuKbW00QM&hl=en&sa=X&ved=0ahUKEwjXm-TCwuXPAhUI8ywKHS8 2013 Note: This post is about diagnosing real life scenario caused by direct path decision change on 11.2.0.3 which already covered by Tanel Poder on his awesome Optimizer statistics-driven direct path read decision for full table scans (_direct_read_decision_statistics_driven) post If you already read and know how to (more...) Plan stability through Upgrade to 11G-Why is my plan changed?-Auto Adjusted Dynamic Sampling Database Management and oracle error Performance coskan | May 31, 2012 Todays story is about, how dynamic sampling can effect your plan stability during upgrade and how you can recover from it as long as you know what your are doing. A little bit of background, I'm currently in the middle of migrate and upgrade cycle for 12TB warehouse from 10.2.0.3 Solaris to 11.2.0.3 (yet) Linux. Plan stability on this system is maintained by locking the main driving table statistics and hinting oracle error an the queries in case CBO does not pick the right driving table. The system uses temporary tables a lot for staging operations and (more...) Carlos Sierra started blogging Database Management and Performance coskan | Apr 25, 2012 Just a quick post for letting people know that Carlos Sierra started blogging in his Oracle SQL Tuning Notepad. He is the developer of many tools like "coe_xplain.sql, followed by profiler.sql, Trace Analyzer (TRCANLZR), SQLTXPLAIN (SQLT) and SQL Health-Check (SQLHC). " which are available in MOS. Never seen or talk him personally but I'm big fan and user of his tools for a long time and I'm sure he will write plenty of tuning stories. I would like to say welcome to Oracle Blogosphere and wish him good luck with his blogging journey When dbms_xplan.display_sql_plan_baseline fails to show the plan Database Management and Performance coskan | Apr 11, 2012 Last week my colleague (Paul Reed - my new content provider with issues on his databases ), had a problem where he needed to identify which baseline was using index on a plan where collection table (like SELECT column FROM TABLE(:B1) ) was used. When he tried DBMS_XPLAN.DISPLAY_SQL_PLAN_BASELINE he got "ERROR: An error has happened, error code: 22905″ which was related with the bug below. DBMS_XPLAN.DISPLAY_SQL_PLAN_BASELINE returns "ERROR: An error has happened, error code: 22905" [ID 1418186.1] When he asked me, if
εμάς.Μάθετε περισσότερα Το κατάλαβαΟ λογαριασμός μουΑναζήτησηΧάρτεςYouTubePlayΕιδήσειςGmailDriveΗμερολόγιοGoogle+ΜετάφρασηΦωτογραφίεςΠερισσότεραΈγγραφαBloggerΕπαφέςHangoutsΑκόμη περισσότερα από την GoogleΕίσοδοςΚρυφά πεδίαΒιβλίαbooks.google.gr - Oracle is the number one database engine in use today. The fact that it is the choice of military organizations and agencies around the world is part of the company’s legacy and is evident in the product. Oracle has more security-related functions, products, and tools than almost any other database...https://books.google.gr/books/about/HOWTO_Secure_and_Audit_Oracle_10g_and_11.html?hl=el&id=TD5eibhYyd8C&utm_source=gb-gplus-shareHOWTO Secure and Audit Oracle 10g and 11gΗ βιβλιοθήκη μουΒοήθειαΣύνθετη Αναζήτηση ΒιβλίωνΑποκτήστε το εκτυπωμένο βιβλίοΔεν υπάρχουν διαθέσιμα eBookCRC PressΕλευθερουδάκηςΠαπασωτηρίουΌλοι οι πωλητές»Αγορά βιβλίων στο Google PlayΠεριηγηθείτε στο μεγαλύτερο ηλεκτρονικό βιβλιοπωλείο του κόσμου και ξεκινήστε να διαβάζετε σήμερα στον ιστό, το tablet, το τηλέφωνο ή το ereader σας.Άμεση μετάβαση στο Google Play »HOWTO Secure and Audit Oracle 10g and 11gRon Ben-NatanCRC Press, 10 Μαρ 2009 - 470 σελίδες 0 Κριτικέςhttps://books.google.gr/books/about/HOWTO_Secure_and_Audit_Oracle_10g_and_11.html?hl=el&id=TD5eibhYyd8COracle is the number one database engine in use today. The fact that it is the choice of military organizations and agencies around the world is part of the company’s legacy and is evident in the product. Oracle has more security-related functions, products, and tools than almost any other database engine. Unfortunately, the fact that these capabilities exist does not mean that they are used correctly or even used at all. In fact, most users are familiar with less than twenty percent of the security mechanisms within Oracle. Written by Ron Ben Natan, one of the most respected and knowledgeable database security experts in the world, HOWTO Secure and Audit Oracle 10g and 11g shows readers how to navigate the options, select the right tools and avoid common pitfalls. The text is structured as HOWTOs addressing each security function in the context of Oracle 11g and Oracle 10g. Amo