Reg: Oracle audit regular performance impact

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• Remove all lines and insert them into Oracle can make performance worse?

  I m working in a project that I need to make a batch update regularly (every 4 months) of excel files. These files have doesn´t excellent key in their ranks.

  The development of a code that deletes all lines and inserts the entire base again is easier than one who checks in all the ranks of its primary key and if necessary update. (sometimes may be a key to 5 columns).

  My question is: if I delete all the rows in the tables of the insert it again, it will cause tablespace fragmentation and in a future loss of performance?

  Is there a way to avoid this?

  Thanks in advance

  Alexander

  This response helped me a lot.

  Thank you all

  Remove all lines and insert them into Oracle can make performance worse? -Stack overflow

• can I use "Oracle Database 12 c: performance management and Tuning" training for the certification "Oracle Database 11g: Performance Tuning 1Z0-054 '"»

  I took "Oracle Database 12 c: new performance management and Tuning" the oracle University training. Now I would like to get certified on "Oracle Database 11g: Performance Tuning 1Z0-054 ' exam. Is this possible?

  I guess you ask if you can use the course 12 c as long as the condition of course for the review of 11g.  Over 12 c is not listed as one of the options for the 11 g certification and course requirements are normally specific version - at least with DBA certifications.  If you are already an Oracle OCP DBA, of course, there is no requirement of course for the review of performance tuning.  From what I know the training requirements for other certifications, I do not that you will be able to use it. However, Brandye will provide a definitive answer to whether the course 12 c would be acceptable for 11g certification.

  That said, I'm with John - 12 c review is about a community of 85 to 90% in the review of the 11g and is currently about 20% of the price while it is in beta.  What is the point of trying to cross the releases?

• SYS. FGA_LOG$. LSQLBIND location in Oracle Audit Vault

  When Oracle Audit Vault 12.1.1 collects info SYS check. FGA_LOG$ LSQLBIND column of the table, where can we find these values in the Oracle Audit Vault 12.1.1 repository?

  This is a bug. It is fixed in AV 12.1.2

• 1Z0-054: Oracle Database 11g Performance Tuning Expert

  I intend to give the exam 1z0-054 for the certification, "Oracle Database 11g Performance Tuning Expert".
  
  The path to Certification indicates that, if you are 'OCP DBA 11 g' then you can directly take this article and there is no requirement for training instructor. Therefore, I decided to prepare my own. Can someone guide me on study material and landfills?
  
  Kind regards
  
  Ahmer Mansoor

  Therefore, I decided to prepare my own. Can someone guide me on study material and landfills?

  First of all, the word "shock" has a precise meaning. It is short for "landfills of brain", which are illegal and can cost you this certification and all others you have taken.

  http://blogs.Oracle.com/certification/entry/0477

  Second - there is currently no study guide or a specific book to this certification at the moment. I write the study guides and this one is actually next on my list when I finished the current book to * 1Z0-117: Oracle Database 11 g Release 2: SQL Tuning *. I have a guide for 1Z0 - 054 before sometime in may more likely. That said, I have a few links for legal study on the companion Web site material for my series of guide to the subjects for this exam. It also has links to the Oracle documentation that contains the information you need. Once I have started writing the book review, links will develop quickly because I research for her themes and links to the documentation could extend as well.

  http://www.oraclecertificationprep.com/Apex/f?p=OCPSG:EXAM_DETAILS:0:no:P2_EXAM:1Z0 - 054

• Links to learn and use Oracle audit

  Hi all
  I want links to learn and use Oracle DB audit featured
  I heard recently that the audit has two types: manual right and by Oracle? I want this one by Oracle
  This is the right forum for this thread?
  Thank you
  
  Note: I use DB Oracle 10g R2

  Dev. Men wrote:
  Hi all
  I want links to learn and use Oracle DB audit featured
  I heard recently that the audit has two types: manual right and by Oracle? I want this one by Oracle
  This is the right forum for this thread?
  Thank you

  Note: I use DB Oracle 10g R2

  Find this link to use Oracle audit:
  http://download.Oracle.com/docs/CD/B19306_01/network.102/b14266/cfgaudit.htm

• The performance impact on the size of the CHM file

  Is there any performance impact depending on the size of a CHM file?

  Main issues people with the help file performance (whether a CHM file) are related to the number of images, the hotspots DHTML, bookmarks, and links they have in a topic. The number of subjects in a CHM shouldn't be a problem. What exactly you are trying to access the performance impact?

• Dates for "Oracle Database 11g: Performance Tuning" exam

  Hello!
  
  Today Oracle posted the info on the new database Oracle 11 g Performance Tuning review required for new certification expertise:
  
  http://education.Oracle.com/pls/web_prod-PLQ-dad/db_pages.GetPage?page_id=41 & p_exam_id = 1Z0_054 #2
  
  It is said that pre-registration for the beta version review starts today, however, it does not say when the phase beta begins and ends. Anyone know?
  
  Thank you
  Marcus

  March 31, 2009 is the current provisional end date for the exam in beta 1Z1-054. This date is subject to change.

  Kind regards
  Brandye Barrington
  Certification Forum Moderator
  Manager certification program

• Space/performance impact of attachments on oracle applications

  Hello everyone!
  
  We are about to go to allow attachments in our Oracle Apps R12.1.3 (RHEL 5.5 64-Bit. Database 11.1.0.7). Before you go for it, however, we want to know how it will impact storagewise and performance wise.
  
  Thanks in advance!
  
  Vinod
  
  Edited by: VinodNagpure January 6, 2013 23:19

  Attachments are stored in the table FND_LOBS - attachments are not compressed. There should be no performance issues don't related - extra storage will be necessary depending on how many and how big are the attachments. Store attachments on the file (instead of the database) system is also an option.

  How the store Image/PDF spare part on the filesystem in 11i and R12 (as an attachment file directory) [ID 294525.1]
  Is there a limit to size of file for EBS Attachments [ID 739643.1]
  Attachments and exports, a Troubleshooting Guide [ID 135444.1]
  Attachments in the Oracle Applications 11i, storage and considerations [ID 176658.1]

  HTH
  Srini

• Oracle statistics performance impact

  We had empty and loaded tables more then 100 million lines, and our DBA put together the statiscis. Now, the tables are truncated, and we need to load data into empty tables.
  My question is applying the statistics of the last run will improve performance or there is no performance gain by applying statistics.
  
  I'm not a DBA, and so apologies if I ask a question wrong. Thank you
  
  Published by: anuragtandon on February 1, 2013 21:47

  If you are truncating and make the daily load in bulk then it's an unstable table for sure. Let me paste here what oracle white paper said "an unstable table is one where the amount of data changes radically over time. For example, a queue table orders, which, at the beginning of the day, the table is empty. As the day progresses and orders are placed the table starts to fill. Once each order is processed, it is deleted in the tables, so at the end of the day, the table is empty, once again.

  If you base you on automatic statistics together in order to maintain statistics on these tables, then the statistics should always be that the table was empty because it was empty during the night, when the work missed. However, during the day, the table can have hundreds of thousands of lines in there.

  In this case, it is best to gather a representative set of statistics for the table during the day when the table is filled, and then block them. Locking statistics will prevent the automatic statistics collection job among most of write them. Alternatively, you can rely on a dynamic sampling to collect statistics on these tables. The optimizer uses dynamic sampling during the compilation of a SQL statement to collect some basic statistics on the tables before the optimization of education. Although statistics collected by dynamic sampling are not as a quality or as complete as statistics collected using the DBMS_STATS package, they should be good enough in most cases. »

  SOURCE http://www.oracle.com/technetwork/database/focus-areas/bi-datawarehousing/twp-bp-optimizer-stats-04042012-1577139.pdf

• Register of the firewall of oracle audit vault server on database

  Hello

  I installed two VM virtualbox:
  (( 1) - audit Vault Server () V. 12.1)
  (( 2 ) - oracle Database Firewall () V. 12.2)
  
  console dbfw, I installed the certificate copied console Audit Vault, assigned the IP: 192.168.56.5 the audit Vault Server and Save this configuration
  
  While:
  
  Audit Vault console J’ai entered the name de dbfw (dbfw080027067955) copied from The Network Configuration -> Management interface () I think , right?) et I entered in the nom : dbfw080027067955 () I have tried with DBFW only) and IP: 192.168.56.14, but as soon as I select the recording, I get the error:
  
  FVO -46599: internal error: Impossible to import certified firewall in oracle wallet
  
  something mal?

  
  

  Thank you, Massimo
  

  Thank you Vlad,

  I solved this problem.  My problem is the key to different certification, version 12.2, it's different.

  I installed the same version (12.2) and solve the problem

  Best regards, Massimo

• Installing Oracle Audit Vault 12.1.2

  Hello

  I try to install Audit Vault 12.1.2 using RHEL5 and virtualbox.

  Installed virtualbox VirtualBox - 4.3 - 4.3.16_95972_el5 - 1 on Linux 2.6.18 - 398.0.0.0.1.el5. In virtualbox, I chose the type of operating system like Linux and Oracle 64-bit version. When I try to start the virtualbox with Audit Vault .iso image, the installation is not progress and hang with the message "P11X4: 100% not native mode: will probe IRQS later."

  Please advice if the environment/method mentioned is supported for the installation of audit vault.

  Thank you

  Sisi

  I had trouble not clear with VB 4.3.16.

  I use VB 4.3.12. I had no problems installing AV on this version.

• Client Server application performance impact due to the strong issue of retransmission of TCP packets

  People,

  I'm having problem of performance of serious application with my vSphere environment where I deployed a couple of database SQL Server stand-alone VMs (4 x VM) to be used by some applications virtual computers servers (4 x stand alone VMs) running Oracle Forms (Java) servers. Users connect from their own workstation to various geographic locations in Asia, the data center is in Australia.

  User (150 users of workstations Win7) - RDP-TCP/3389-> Terminal Server VM pool (one of the 45 x VM available) -Oracle Forms app TCP/80-> Application Server HTTP -SQL Server TCP/1433-> SQL Server VM.

  Somehow, report of the team of the network there are some consistent event TCP retransmit the packet between the Application Server to the database, as well as between Terminal servers.

  the accident occurred in any type of scenario same ESXi host or even different ESXi

  Material:

  HP BL 465c G7/G8 blades on c7000 enclosure

  HP Virtual Connect modules

  Software:

  vSphere U1 5.1 for all blades HP running ESXi and VCenter server.

  All terminal Servers Server (RDSH) and the OS: Windows Server 2008 R2 SP1 STD.

  Database: SQL Server 2005 and 2008 R2

  What could cause the TCP retransmission on the virtual environment?

  wreedMH, what kind of problem you encounter on your server environment blade HP?

  What I did:

  1 perform the update firmware on blade HP, ANC and also updated the drivers of ESXi for last October 2015 using HP SPP.

  2. upgrade to the last update of VMware ESXi 5.1 3 b build number 2323236.

  3. switch to level the latest VMware tools v10.0.5 after having done both above.

  4. follow VMware KB: big packet loss at the OS level invited on the VMXNET3 vNIC in ESXi small buffers Rx = 8192 and Rx ring #1 size = 4096

  
  

  Hope that helps.

• Measure the performance impact of a PowerCLI report on vCenter

  How will I know how much of an impact on the performance my powerCLI report will have on the performance of my Server vCenter?
  If I run a report for example which attracts a large number of events of vCenter Server and sorts through them, is that the processing and memory usage will be mainly on the virtual machine, I am under the report of?  How much charge it will put on vCenter itself?  (I see use RAM up substantially on the virtual machine, I am running the report)
  Thank you!

  Just leave out the MaxSamples parameter

• Oracle 11.2 - perform parallel DML on a table that is not partitioned with LOB column

  Hello

  Since I wanted to demonstrate the new enhancements of Oracle 12 c on SECUREFICHIERS, I tried to use PDML declarations on a table that is not partitioned with LOB column, in Oracle 11 g and Oracle 12 c releases. The Oracle 11.2 SECUREFICHIERS and large objects Developer Guide January 2013 said clearly:

  Parallel execution of the following DML operations on tables with LOB columns is supported. These operations performed in parallel run only mode when it is run on a partitioned table. The DML statements on tables not partitioned with LOB columns continue to run in serial execution mode.

  • INSERT SELECT AS
  • CREATE TABLE AS SELECT
  • DELETE
  • UPDATE
  • MERGE (conditionally UPDATE and INSERT)
  • Multi-table INSERT

  So, I created and filled a simple table with a BLOB column:

  SQL> CREATE TABLE T1 (A BLOB);
  Table created.
  

  Then, I tried to see the execution of a parallel ABOLITION plan:

  SQL> EXPLAIN PLAN FOR
    2  delete /*+parallel (t1,8) */ from t1;
  
  Explained.
  

  SQL> select * from table(dbms_xplan.display);
  
  PLAN_TABLE_OUTPUT
  --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
  Plan hash value: 3718066193
  
  -------------------------------------------------------------------------------------------------------
  | Id  | Operation             | Name     | Rows  | Cost (%CPU)| Time     |    TQ  |IN-OUT| PQ Distrib |
  -------------------------------------------------------------------------------------------------------
  |   0 | DELETE STATEMENT      |          |  2048 |     2   (0)| 00:00:01 |        |      |            |
  |   1 |  DELETE               | T1       |       |            |          |        |      |            |
  |   2 |   PX COORDINATOR      |          |       |            |          |        |      |            |
  |   3 |    PX SEND QC (RANDOM)| :TQ10000 |  2048 |     2   (0)| 00:00:01 |  Q1,00 | P->S | QC (RAND)  |
  |   4 |     PX BLOCK ITERATOR |          |  2048 |     2   (0)| 00:00:01 |  Q1,00 | PCWC |            |
  |   5 |      TABLE ACCESS FULL| T1       |  2048 |     2   (0)| 00:00:01 |  Q1,00 | PCWP |            |
  
  PLAN_TABLE_OUTPUT
  --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
  -------------------------------------------------------------------------------------------------------
  
  Note
  -----
     - dynamic sampling used for this statement (level=2)
  

  And I ended up executing the statement.

  SQL> commit;
  Commit complete.
  
  SQL> alter session enable parallel dml;
  Session altered.
  
  SQL> delete /*+parallel (t1,8) */ from t1;
  2048 rows deleted.
  

  As we can see, the statement was executed in parallel:

  SQL> select * from v$pq_sesstat;
  
  STATISTIC                      LAST_QUERY SESSION_TOTAL
  ------------------------------ ---------- -------------
  Queries Parallelized                    1             1
  DML Parallelized                        0             0
  DDL Parallelized                        0             0
  DFO Trees                               1             1
  Server Threads                          5             0
  Allocation Height                       5             0
  Allocation Width                        1             0
  Local Msgs Sent                        55            55
  Distr Msgs Sent                         0             0
  Local Msgs Recv'd                      55            55
  Distr Msgs Recv'd                       0             0
  
  11 rows selected.
  

  Is this normal? It is not supposed to be supported on Oracle 11 g with no partitioned table containing the LOB column...

  Thank you for your help.

  Michael

  Hello

  The explain plan shows that only the query is run in parallel but not delete it.

  Concerning

  Maurice