like clause and index access

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• order by clause and index access

  Hi all
  
  I have tried under request.
  
  SELECT e.employee_id, e.department_id
  E EMPLOYEES
  order by 2;
  
  Implementation plan...
  
  SELECT STATEMENT, GOAL = ALL_ROWS 4 107 856
  SORT ORDER BY 4 107 856
  TABLE ACCESS FULL     EMPLOYEES OF HR 3 107 856
  
  Below query Oracle by using the INDEX FULL SCAN. I'm not able to find an appropriate explanation. Pls how me oracle optimizer include order by clause while to fetch documents.
  
  -departmentId has index EMP_DEPARTMENT_IX, which is the normal index.
  
  SELECT e.employee_id, e.department_id
  E EMPLOYEES
  order by 1;
  
  SELECT STATEMENT, GOAL = ALL_ROWS 3 107 856
  TABLE ACCESS BY INDEX ROWID HR 3 107 856
  INDEX FULL SCAN     HR EMP_EMP_ID_PK 1 107
  
  
  Thank you.

  Consolidation of the index factor is used by the CBO to calculate how much is a scan interval index (the one that is followed by a table-access by rowid) for this index will be. The CBO calculates this option to select an index if two or more paths index are available.
  But it could also be used to decide between choosing a full index scan (to honor an order by clause and without having to sort after the scan) in the course of a full table scan that requires an extra sort (in honor of the order by clause) operation.

  There are many articles talking about this:

  http://www.oaktable.NET/category/tags/clustering-factor

  http://Oracle-Randolf.blogspot.com/2010/01/clusteringfactor-what-if-analysis.html

  http://mehrajdba.WordPress.com/2009/02/09/index-clustering-factor/

  I just realized today that in case you described: If department_id column is NULL-able, Oracle cannot use the index in department_id to honor the order by clause, because he would find all the lines (those with an id of NULL service), in this case.

• RBO and Index access

  
  Hi I have a 9i database that uses a RBO and we have a query as follows

  tab, select min (a) where b = '111' and c = '1234444' and a > 0;

  We have an index of primary key on the columns a, b and c.Unfortunately the query makes a full table scan, even if the index is present. East - this behaviour will rule based optimizer? Should not go to the index that we select a single line?

  : Note the RBO is used in a production environment, and we cannot change it now.

  Query 1 uses an analysis complete of the index, it reads the ENTIRE index.

  A full table scan is replaced by a full analysis of the index, if there is a unique key of the table,

  Your interpretation of the results of the explain plan for query 1 is wrong: due to the incorrect table design and code wrong, it must use FULL scan restricted index, and he cannot use normal index access.

  If BOTH statements are ineffective due to the implicit conversion! TWO of them. Not a single one.

  And the lack of statistics in the database system Oracle uses the default values for IOSEEKTIM and IOTFRSPEED.

  The column ID in the second query is also authorized NULL, sort of to_number (ID) leads to NULL, which is never in a B-Tree index.

  Oracle did just what you ask. Design of database or application must be fixed, or you must put crutches (the indices of basic function) in the allover database, Oracle to compensate for the incorrect database and application design.

  ---------

  Sybrand Bakker

  Senior Oracle DBA

• SQL like clause and dual...

  Hi all
  
  I want to write a simple query, where I can get basically all my scripts... so something like below... lets say I call the below instructions sql and save it in the called help.sql script and execute it within sqlplus... I'll go below output...
  

  SQL> select * from (
    2  select 'asm_alias.sql, asm_disks.sql, asm_space.sql' from dual)
    3  /
  
  'ASM_ALIAS.SQL,ASM_DISKS.SQL,ASM_SPACE.SQL'
  -----------------------------------
  asm_alias.sql, asm_disks.sql, asm_space.sql

  now, what I want to do is... to put a clause in there where clause and looking for something specific... a condition like...
  so if I had to run the above statement with condition and are looking for something related to only disks... I've released as below instead of all 3 of the above listed production. hope it wise...
  
  asm_disks. SQL

  Hello

  Relational databases are designed to have a post in each column, not a variable number of elements, such as a comma-separated list. If put you multiple values in the same column, you ask just trouble.
  Store your data with a separate line for each name, like this:

  WITH   my_scripts   AS
  (
                 SELECT  'asm_alias.sql'     AS script_name     FROM dual
       UNION ALL     SELECT     'asm_disks.sql'                  FROM dual
       UNION ALL     SELECT     'asm_space.sql'                  FROM dual
  )
  SELECT     script_name
  FROM     my_scripts
  WHERE     script_name     LIKE '%disk%'
  ;
  

  If you face a delimited string, start by turning it into a single element per line. See these threads:
  http://asktom.Oracle.com/pls/asktom/f?p=100:11:0:P11_QUESTION_ID:2189860818012
  Re: get the values using substr

• Trouble accessing some sites like Yahoo and Facebook.

  Original title: Internet Prolems

  I have internet explore 8 and im having difficulties to access certain sites like yahoo and facebook.  I can not also open google chrome and I don't know why.  Does anyone have idea as to what could be the problem?

  Hi claymzz40,

  Thanks for posting in the Microsoft Communities. The problem description, I understand that you are not able to access the Internet. Provide the following information:

  ·         Did you do changes on the computer before the show?

  ·         You get the error message?

  ·         You use a third-party security software?

  ·         The issue is limited to particular Web site?

  Follow these methods.

  Method 1: Temporarily disable the security software.

  Note: Antivirus software can help protect your computer against viruses and other security threats. In most cases, you should not disable your antivirus software. If you do not disable temporarily to install other software, you must reactivate as soon as you are finished. If you are connected to the Internet or a network during the time that your antivirus software is disabled, your computer is vulnerable to attacks.

  Method 2: Follow these steps:

  Step 1: Start the computer in safe mode with network and check if the problem persists.

  Step 2: If the problem does not persist in safe mode with networking, perform a clean bootto see if there is a software conflict as the clean boot helps eliminate software conflicts.

  Note: After completing the steps in the clean boot troubleshooting, follow the section How to configure Windows to use a Normal startup state from the link to start the computer to a Normal startupmode.

  After the clean boot used to resolve the problem, you can follow these steps to configure Windows XP to start normally.

  (a) click Start, run.

  (b) type msconfigand click OK.

  (c) the System Configuration Utility dialog box appears.

  (d) click the general tab, click Normal startup - load all services and device drivers and then click OK.

  (e) when you are prompted, click restart to restart the computer.

  Method 3: Follow the steps in the article.

  How to troubleshoot possible causes of Internet connection problems in Windows XP

  You can read this article for more information:

  Wireless and wired network problems

  Let us know if you need more assistance.

  Thank you.

• How do I create a web pages with Adobe Muse reagent? I think it's a great tool and must Access the functionality just like Edge reflow. And is it possible to import works of reflow to Muse?

  How do I create a web pages with Adobe Muse reagent? I think it's a great tool and must Access the functionality just like Edge reflow. And is it possible to import works of reflow to Muse?

  Hello

  Please check a few suggestions given in this thread you can create sensitive sites with Adobe Muse?

• Partitioned Tables and indexes

  Hello
  
  
  I have a question on the table and index partitioning. My scenario is:
  
  Charge 2 mio records in table T once a month. Loaded records are added to existing records, and once loaded data is never changed.
  At some point, I want to delete the older recordings, so I intend to this partition table.
  
  T table looks like:
  

  create table t (id       number(10) not null  constraint t_pk primary key,
                  period   number(10) not null,
                  contract number(10) not null,
                  attr     number(10) not null);
  
  create unique index t_ux1 on t(contract,period);
  
  create index t_ix2 on t(period);

  My plan is to partition T over the period, and I'm trying to read through the concepts
  http://download.Oracle.com/docs/CD/B19306_01/server.102/b14220/partconc.htm#g471747
  
  
  My question is now, how to manage the indexes, the t_pk, the t_ux1 and the t_ix2. Concepts of say,
  
  «1. If the table partitioning column is a subset of index keys, use a local index.»
  
  "2. If the index is unique, use a global index. If this is the case, you are finished. »
  
  
  So, that's how I read it
  -t_pk is unique, so this should be global
  -t_ux1 of columns is a subset, unless I have misunderstood (?), which should be local
  -index t_ix2 column is the same as the partitioning column, so it must be local
  
  Is this right, this t_ux1 should be a local partioned index, even if the period is the second column in the index?
  
  If true, what will happen when a partion fell?
  
  
  I am new in this area, so please feel the comment as you wish.
  
  
  Concerning
  Peter
  
  
  BANNER
  ----------------------------------------------------------------
  Oracle Database 10 g Enterprise Edition release 10.2.0.3.0 - 64bi
  PL/SQL version 10.2.0.3.0 - Production
  CORE Production 10.2.0.3.0
  AMT for IBM/AIX RISC System/6000: Version 10.2.0.3.0 - production
  NLSRTL Version 10.2.0.3.0 - Production

  Peter Gjelstrup wrote:

  My question is now, how to manage the indexes, the t_pk, the t_ux1 and the t_ix2. Concepts of say,

  «1. If the table partitioning column is a subset of index keys, use a local index.»

  "2. If the index is unique, use a global index. If this is the case, you are finished. »

  So, that's how I read it
  -t_pk is unique, so this should be global
  -t_ux1 of columns is a subset, unless I have misunderstood (?), which should be local
  -index t_ix2 column is the same as the partitioning column, so it must be local

  Is this right, this t_ux1 should be a local partioned index, even if the period is the second column in the index?

  A partitioned index locally can only be defined as unique if the partition key is part of the columns in the index. Imagine what the database would have to do if this is not the case: in order to verify if a newly added or updated value violates the uniqueness, it will have to travel all the partitions in a serialized operation - means that no one else could do the same thing at the same time. Since he is a killer of serious scalability in terms of locking and contention, this is not allowed.

  So: Your T_UX1 index can be defined as a unique index that is local because it contains the partition key. Although the index is not prefixed ("Prefix" means that it is divided by the left side of the columns in the index) which means that there may be access patterns where all partitions should be scanned or the optimizer cannot use a method of size of effective partition according to the way the index is reached.

  Your T_PK index cannot be set as local because it must be unique (you can not use a local non-unique index in this case), but does not contain your partition key. It must be a global index. An overall index can be partitioned as well (different from the underlying table) but it doesn't have to be.

  Depends on how you access your data you have not T_IX2 index when partitioning by this key because it corresponds to the partition key and therefore could not actually be used by the mechanism of partition pruning that limit your query to the scores of individuals.

  If you have more than one MAS environment where running queries are used longer, you should be fine with the index the in general (because they could be analyzed in parallel in parallel operations), but if you have an OLTP environment, then you should avoid local no prefix indexes due to the potential problem that you need to analyze all partitions.

  Be borne in mind that with partitioning adds an important layer of complexity to other areas: in particular the options available to the optimizer and analyze cost optimizer statistics. Depends on how you access your statistical data must be maintained on several levels now (level of score and at the global level, in the case of subpartitioning may be still at this level). If your data is important and you rely on "global" level statistics (these are always the case when the optimizer at the time analysis cannot limit access to a single partition) then in the pre - 11 g databases analyze these "global" level statistics can take a lot of time and resources, since actually , you need data several times (once for the partition and even global level).

  Presenting this partitioning may mean other potential problems in terms of execution that change (not for the better sometimes) plans and how to effectively collect statistics. Note that g 11 addresses the issue of 'statistics' by introducing the so-called "extra" global statistics. Greg Rahn wrote a [blog note | http://structureddata.org/2008/07/16/oracle-11g-incremental-global-statistics-on-partitioned-tables/] on this nice feature.

  >

  If true, what will happen when a partion fell?

  Since you're already on 10g, you can specify the database to update the scores of the local index using the UPDATE of the INDEX clause, while 9i could maintain only an overall index and it is up to you to rebuild the local index partitions after the partition DDL on the table (according to the DDL operation).

  Kind regards
  Randolf

  Oracle related blog stuff:
  http://Oracle-Randolf.blogspot.com/

  SQLTools ++ for Oracle (Open source Oracle GUI for Windows):
  http://www.sqltools-plusplus.org:7676 /.
  http://sourceforge.NET/projects/SQLT-pp/

  Published by: Randolf Geist on Sep 30, 2008 16:39

  Added statistics / optimizer warning when you use the partitioning

• Preference system, security and confidentiality, accessibility - not working/empty

  Hello

  All of a sudden my system preference, safety and confidentiality, accessibility access list does not work, it is completely empty/Virgin and I can't use + / either. They do nothing. The + tries to add an app and I can select an app via the dialog box, but the window just shows blank after choosing an app. He never adds anything.

  I reboot several times and turned to cycling as nothing will do. I also zapped the PRAM, still nothing. I also used the Onyx to repair permissions and also checked the disk, everything going perfectly.

  The list never used to be empty, there are several apps listed in there, but they are all gone now. It is completely empty.

  I have problems because the apps that were once, now on the list will not work until I have added to the list, but I can't. I would like to buy yet another application that could control this list, but I don't know of any application that does.

  I hope someone has a solution or an idea of what to do because you have lived the same exact situation.

  I am running 10.11.5

  Thank you

  -Doren

  

  Please launch the Console application in one of the following ways:

  ☞ Enter the first letters of his name in a Spotlight search. Select from the results (it should be at the top).

  ☞ In the Finder, select go utilities ▹ of menu bar or press the combination of keys shift-command-U. The application is in the folder that opens.

  ☞ Open LaunchPad and start typing the name.

  The title of the Console window should be all Messages. If it isn't, select

  SYSTEM LOG QUERIES ▹ all Messages

  in the list of logs on the left. If you don't see this list, select

  List of newspapers seen ▹ display

  in the menu at the top of the screen bar.

  Click on the clear view icon in the toolbar. Then take an action that does not work the way you expect. Select all of the lines that appear in the Console window. Copy to the Clipboard by pressing Control-C key combination. Paste into a reply to this message by pressing command + V.

  The journal contains a large amount of information, almost everything that is not relevant to solve a particular problem. When you post a journal excerpt, be selective. A few dozen lines are almost always more than enough.

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  If you have an account on Pastebin, please do not select private in exposure menu to paste on the page, because no one else that you will be able to see it.

• When Apple will allow third-party apps, like MapMyRun fitness, to access the heart rate monitor?

  I bought the Apple Watch to follow my heart rate during trials, only to discover that all third-party applications like MapMyRun and Nike + are not able to access data on the Apple Watch heart rate monitor. Will this change possibly? Does anyone have information about this?
  I am very disappointed and wish now I had bought a Fitbit instead.

  Hello..

  What is a user to user community, you do not directly communicate with Apple here, nobody can say whether or not Apple will allow these third-party applications for use with an Apple Watch, but what you can do is to provide feedback > http://www.apple.com/feedback/watch.html

• Critical auth and limited access-list

  I play just with ISE 1.1.4 and auth critical, but I have a pretty locked down from the default access on ports list. Is it possible to replace a list of very restrictive access by default in the event of critical auth?

  It seems as if you are relieant on DACLs to provide access for devices (closed or similar mode) auth criticism is not a viable option?

  Or have I misunderstood, and perhaps "action dead event server authentication allows voice" more I waited.

  I guess I'm looking for something like "event action dead access-list less-restrictiveACL server authentication."

  Thank you

  Gas

  Why not flip it on its head and have your less-restrictive-ACL default and impose more restrictive things through dACL?

• What is the order to turn off the constraints and index

  Hi, I need to make some out of constraints and indexes on tables to load quite a date in them. I know that I can just drop them and recreate later. But is it feasible to figure who forced and in what order must be do disable or unusable before a load and after the load that is to say. without dropping to preserve? R before P data loading, and then P before R like I think that controls can jump in evertytime and are quite safe to deal with. But I did not carefully think about more, maybe you have some scripts that say exactly what should be the order to turn off the coast and later on this subject.

  Thank you!

  Hello

  946279 wrote:

  Hi, I need to make some out of constraints and indexes on tables to load quite a date in them. I know that I can just drop them and recreate later. But is it feasible to figure who forced and in what order must be do disable or unusable before a load and after the load that is to say. without dropping to preserve? R before P data loading, and then P before R like I think that controls can jump in evertytime and are quite safe to deal with. But I did not carefully think about more, maybe you have some scripts that say exactly what should be the order to turn off the coast and later on this subject.

  Thank you!

  That's right: disable foreign key constraints before disabling the primary (or Unique) key constraint correspondent.  When you reactivate them, re - enable the constraint of primary (or Unique) key before the corresponding foreign key constraints.

  Aside from that, the order should not issue.

• can I exclude statistics and index both at the same time

  Hi people,

  I do big table re-organization, so my question is can I exclude statistics and index at the same time

  I am planing this activity as below, please advise me if I'm wrong.

  (1) create table xx_031114 in select * from xx;   (it's like the precautionary measures)

  (2) export the table xxx using its owner the user yy

  yy/passwd@tnsnames = DIRECTORY expdp export DUMPFILE = xx.dmp = xx LOGFILE = xx.log tables

  (3) to truncate the table or drop table

  SQL > truncate table xx;

  SQL > drop table xx;

  (4) import the table with metadata without statistics & index as below

  Impdp yy/passwd@tnsnames DIRECTORY = export statistical DUMPFILE = xx.dmp = xx = exclude TABLES, index CONTENT = METADATA_ONLY LOGFILE = imp_031114.log (import only meta data without statistics & index)

  
  

  Question 1: can I exclude the statistics and indexes at once?

  Impdp yy/passwd@tnsnames DIRECTORY = export of TABLES DUMPFILE = xx.dmp = xx CONTENT = exclude LOGFILE = imp_dataonly_031114.log index = DATA_ONLY (import data only without index)

  Impdp yy/passwd@tnsnames DIRECTORY = export of TABLES DUMPFILE = xx.dmp = xx include = index (import only indexes)

  2 question: can I import the indexes only as above?

  Thank you and best regards.

  Younus

  for your question: you use the exclude options separate to exclude indexes and statistics

  Question 2: directory of the user/password impdp dumpfile you_dir = your_dump = include = INDEX

  Hope this helps

  concerning

  Pravin

• Comment create a private with password and login access?

  Comment create a private with password and login access?

  If all you need is to grant a person/company access to a specific folder on your site (a location test for their website for example), you can usually do this from your control panel hosting account. You must consult your webhost for exact directions on how to do it.

  If you need a more robust record and the system log-in, you will need to become familiar with a language such as php server-side and a database like mySQL. DW has nothing built-in that will do these things for you, however you can use DW to encode or lining up third-party code on your site.

• I did an Adobe account and wish to cancel my purchase I bought on credit card must cancel any emergency not like adobe and you want to cancel as I do?  I am Brazilian and I made this purchase this week please help me cancel this purchase as I branch

  I did an Adobe account and wish to cancel my purchase I bought on credit card must cancel any emergency not like adobe and you want to cancel as I do?

  This is an open forum, not Adobe support... below to connect with Adobe personnel to help

  While the forums are open 24/7 you can't contact Adobe support at any time

  Chat/phone: Mon - Fri 05:00-19:00 (US Pacific Time)<=== note="" days="" and="">

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  http://helpx.Adobe.com/x-productkb/global/service-CCM.html

  or

  Cancel see answer #1 in https://forums.adobe.com/thread/2023066 - includes a link to Chat from Monday to Friday

• "Unable to connect" and index.php

  Hello.

  I develop a Web Site and index.php is my entry point.

  The Library/WebServer/Documents document root

  so my background is: Library/WebServer/Documents/dwwdSite

  httpd.conf file is modified to add index.php and I cited him first.

  < IfModule dir_module >

  DirectoryIndex index.php index.html

  < IfModule >

  Troubleshooting:

  I've been using Netbeans IDE, and when I ran index.php it open in the browser.

  When I launched "any" of my index.php of Netbeans IDE files, they opened correctly in the browser

  I'm NOW using DreamweaverCC and when I run index.php Error Message 'Unable to Connect'.

  For the past 2 days, I worked on it and I am completely stuck.

  This morning I thought about another way to test the error "unable to connect".
  

  I decided to copy the same file in Netbeans IDE and I NOW get the same error Message " Unable to Connect' '.

  When you use Netbeans index.php.

  Somehow, my settings are not correctly configured more.

  Here are my screenshots of Dreamweaver > manage sites.

  

  

  

  

  I think it's a pretty simple solution I don't see somehow.

  Perhaps some may find a mistake.

  I appreciate your help and your explanations.

  This has been fixed!

  I don't know how much I need to provide information.

  Someone suggested I check if apache is running.

  Troubleshooting, I came across an error that referenced what I thought was a wrong file.

  No way below the code or a color tag, so I just added points.

  • MyName myNameMacBookPro:apache2 $ sudo nano httpd.conf
  • Restart MyName myNameMacBookPro:apache2 $ sudo apachectl k
  • Syntax error on line 1 of the /private/etc/apache2/users/myNameBU.conf:
  • Invalid command ' {\\rtf1\\ansi\\ansicpg1252\\cocoartf1187\\cocoasubrtf370', perhaps misspelled or defined by a module not included in the server configuration}
  • httpd not running, trying to start
  • myNameMacBookPro:apache2 MyName$

  It (apache?) using a file called myNameBU.conf referenced above in private/etc/apache2/users/myNameBU.conf.

  It's a backup copy I made of myName.conf which is located in my/etc/apache2/users directory.

  myNameBU.conf exists as well.

  I opened myNameBU.conf and it has been tampered with {braces} and /slashes at the end of each line.

  I modified the content of the file.

  It fixed my problem "localhost".

  I am now able to 'connect to the local host.
  

  I probably shouldn't bother to do this backup myNameBU.conf (which was 2 months ago).

  It caused no problems when using Netbeans but DreamweaverCC seems not to like it.

  If someone can explain to me why the myNameBU.conf was referenced instead of myName.conf

  I'd be happy.

  I can't always at some of the answers above as useful?

  Roger