gaps in the sequences being cached

Similar Questions

• find the gaps between the sequences

  Hi all

  I have a request to find the gap between the sequences.

  Here's my table structure

  user_number | seq_number

  1            |   101

  1            |      102

  1            |    109

  1            |    110

  1            |    111

  2            |    201

  2            |    202

  2            |    203

  2            |    207

  2            |    208

  .            |    .

  .            |    .

  .            |    .

  .            |    .

  Now I have to find the gap between sequences, what I mean by gap's user_number 1 ' 6 between seq_number gap ' 102 'and 109'.

  Here's the query that I'm writing, but not giving the correct answer, he always gives the gap of 2:

  Select gap_start - gap_end gap

  de)

  Select a.seq_number + 1 as gap_start, b.seq_number - 1 as gap_end

  from my_table a, b from my_table

  where a.seq_number = b.seq_number

  and a.seq_number - (select c.seq_number

  from my_table c

  where c.seq_number = a.seq_number - 1) is set to null

  and a.user_number = '1'

  order of a.seq_number

  );

  Thank you.

  Hello

  Whenever you have a question, please post a small example of data (CREATE TABLE and only relevant columns, INSERT statements) for all of the tables involved and the accurate results you want from this data, so that people who want to help you can recreate the problem and test their ideas.

  Explain, using specific examples, how you get these results from these data.

  Always say what version of Oracle you are using (for example, 11.2.0.2.0).

  See the FAQ forum: Re: 2. How can I ask a question on the forums?

  Maybe you want something like this:

  WITH got_prev_seq_number AS

  (

  SELECT user_number, seq_number

  LAG (seq_numebr) OVER (PARTITION BY user_number

  ORDER BY seq_number

  ) AS prev_seq_number

  FROM my_table

  )

  SELECT user_number, seq_number, prev_seq_number

  OF got_prev_seq_number

  WHERE seq_number > prev_seq_number + 1

  ORDER BY user_number, seq_number

  ;

  .

• gaps in the sequence numbers

  Hello
  
  Using 11.2.0.3 with the code below to try to generate sequnec number when no other number found.
  
  Get numbers seq greate gaps as 1 in them and not starting not not to the specified number
  
  What I am doing wrong?
  

  execute immediate('drop sequence NON_SAP_BUSINESS_PARTNER_SEQ');
  -- Create sequence 
  execute immediate('create sequence NON_SAP_BUSINESS_PARTNER_SEQ
  minvalue 600225
  maxvalue 699999
  start with 600225
  increment by 1
  nocache');
  
  Thanks
  
  
  CASE WHEN x.ccr_bus_partner_id IS not null
           then x.ccr_bus_partner_id
        else
            nvl(initial_load.RETURN_bp_number(cd_urn,cd_hub_num,cd_legacy_box_num),NON_SAP_BUSINESS_PARTNER_SEQ.nextval)
            
  end case   

  user5716448 wrote:
  Hello

  Using 11.2.0.3 with the code below to try to generate sequnec number when no other number found.

  Get numbers seq greate gaps as 1 in them and not starting not not to the specified number

  What I am doing wrong?

  execute immediate('drop sequence NON_SAP_BUSINESS_PARTNER_SEQ');
  -- Create sequence
  execute immediate('create sequence NON_SAP_BUSINESS_PARTNER_SEQ
  minvalue 600225
  maxvalue 699999
  start with 600225
  increment by 1
  nocache');
  
  Thanks
  
  CASE WHEN x.ccr_bus_partner_id IS not null
  then x.ccr_bus_partner_id
  else
  nvl(initial_load.RETURN_bp_number(cd_urn,cd_hub_num,cd_legacy_box_num),NON_SAP_BUSINESS_PARTNER_SEQ.nextval)
  
  end case   
  

  Depending on your State and the code used, the nextval will be determined for each row retrieved in a query (i.e. the other condition of a case may be partially or fully assessed causing the nextval must be retrieved even if it is not used).

  You should not rely on objects of the sequence of sequences "gapless". This is not what they are designed for and gap free sequences are not guaranteed with them.

• Gap in the sequence of the Archive

  Hello

  I have a Setup primary and physical the previous day. However, there seems to be a gap in my journal sequence archive, resulting the issue ORA-16724 Broker cannot solve gap

  I narrowed down it to 1 sequence archive is missing on my primary. I think that this may have arisen because the following command has been issued on the primary

  change the database clear no archived logfile Group 1;
  

  Q1. Is - what the reason for the gap of newspaper archive?

  I have no way to restore the missing log archiving (because it was never created in the first place because of the above command)

  Q2. How can I get my primary and Standby back in harmony? I'm not worried about the loss of data, I want to just the pair of primary / secondary working again

  I had no Flashback database enabled on the primary at the time loss of archive (I do now!)

  any help appreciated,

  Jim

  
  

  change the database clear no archived logfile Group 1;

  Q1. Is - what the reason for the gap of newspaper archive?

  I have no way to restore the missing log archiving (because it was never created in the first place because of the above command)

  Is it intentional or database was not able to check when issuing this command? whatever if you clear a log file that is necessary for recovery and then you cannot recover. Because the specific data in the redo log were not archived and thus caused archive GAP.

  Q2. How can I get my primary and Standby back in harmony? I'm not worried about the loss of data, I want to just the pair of primary / secondary working again

  I had no Flashback database enabled on the primary at the time loss of archive (I do now!)

  Still even if you have not enabled flashback database, you can synchronize primary and standby databases, check out this link to perform differentials rolls forward in sleep mode

  http://www.Oracle-CKPT.com/RMAN-incremental-backups-to-roll-forward-a-physical-standby-database-2/

  HTH.

• CHANGE the SEQUENCE on a busy server translates into very high unexpected values

  Our sequence was 782,393,232, or so, when I came it up through 30 000. Here are the commands I used:
  
  change the sequence of OUR_SEQ increment in 30000;
  Select double OUR_SEQ.nextval;
  change the sequence of OUR_SEQ increment in 1;
  commit;
  
  When I questioned nextval in the sequence, a few minutes later, he had climbed up to more 8 billion! I have reset quickly up to 783 million or more, and it behaved correctly after that. I saw some posts on the net that infer that the reset sequence is heavily used can cause "unpredictable." Everyone knows this or y at - it a bug known?
  
  I am running:
  
  Oracle Database 10 g Enterprise Edition Release 10.2.0.4.0 - 64 bit, RAC system.
  PL/SQL Release 10.2.0.4.0 - Production
  "CORE 10.2.0.4.0 Production."
  AMT for Linux: release 10.2.0.4.0 - Production
  NLSRTL Version 10.2.0.4.0 - Production

  Sven,

  I'm not sure I understand what you're clarifying...

  In a CCR cluster, a sequence with a cache has a separate cache in each node of the cluster. If the cache has been set to 20 (the default), and the increase was set to 30,000, each node is hiding 20 values separated by 30 000. And caches would be overlapping (i.e. node A would get 20 values of 1-570 001, node B would get 20 600 001-1 170 001 values). I don't see that this is in contradiction with what I posted.

  Obviously, the presence of a cache creates a bit of a ride with when, exactly, you say that a sequence is incremented. The NEXT_VALUE in DBA_SEQUENCES is incremented by cache * interval when any node exhausts its cache. The NEXTVAL of a sequence for connections that hit a particular node will increase by interval every time another session gets the NEXTVAL of a sequence. The NEXTVAL of a sequence for connections on a different node is not affected by what is happening on the current node. What enlightenment do you? If so, I agree.

  user11300030,

  Discussion on the sequence of caching can provide insight into why none of the lines are between 780 million and 1 billion. It is quite possible that these values have been cached on one node other than the node where the pads were executed. Had caches was flushed not when change you the sequence, inserts run on these other nodes could have used this range values.

  Justin

• The sequence cache

  I'm using Oracle 11.2.0.4. I need new primary key for a table that already had 10 million rows. I will create a new table with the ETG and a sequence.
  
  During my tests, I found, increasing the size of cache of sequence of 20 to 200 helped me reduce the elapsed time of statement ETG 2 minutes 17 seconds. There was no difference in increasing the size of the cache.
  
  Is there an opposition by increasing the cache size to sequence? Should I reduce the size of the cache sequence back to default 20 after the initial load of the table?
  
  Thanks for your time

  spur230 wrote:

  Is there an opposition by increasing the cache size to sequence?

  Only that someone might complain about the size of the gaps that might appear.

  Should I reduce the size of the cache sequence back to default 20 after the initial load of the table?

  There is no technical reason why you need not bother.

  Concerning
  Jonathan Lewis

• Synchronization of four cameras with gaps in the timeline for multi cameras sequence

  I use Premiere Pro Trial CC to edit a multi camera concert. (The trial is just to see if the multi-came thing will work better than CS5) Since there is a limit of 30 minutes on four of my SLR, I have gaps in each of my deadlines of four cameras. All of these tracks were synchronized manually upward with a master audio track.

  In order to create a multi-cam sequence, I need to synchronize the video tracks 1-4, but so far have not been able to do. I tried to clips from each camera of nesting (so video 1-4 are all separate nested clips.)   I turn on the targeting of track for four channels of video and an audio track. Then I press 'I' to select a Point for the selected tracks. Not sure if this is how it works - just guess here.

  I then tries to 'Create Source Multi camera sequences' and tracks synchronization to aid 'In Points' on the nested five (4 video and 1 audio).   When I double click on the sequence of Source Multi camera to preview, I get four video windows appear, but the timing isn't right. It's as if they all were associated with at the beginning of the clip, not the markers that I put in front.

  So that's my problem. I can't synchronize these titles before creating a sequence of Source Multi cameras. I tried the synchronization of audio track, but it fails - too gaps to make it work, I think. I have no timecode. The only way I can think to do is to clip markers. Are some of these features disabled in the trial version?   Thanks for any help on this!

  MacBook Pro

  10.10.5

  Intel Core i7 2.8 GHz

  16 GB 1600 MHz DDR3

  NVIDIA GeForce GT 750M 2048 MB

  All of these tracks were synchronized manually upward with a master audio track.

  Then, with all your video tracks manually synchronize would with your audio master, you are ready. It would be a sequence with audio and 4 video layers. Now that nest, activate multi-cameras and turn on the multiple camera monitor in the program monitor and start your editing.

  --------------------------

  and if you want to try the other route-

  as for the creation of sequence of Source Multi cameras with points, place your points on your clips 4 source using the source monitor, you will only be able to get one on your audio files. That you establish for the created Premiere Pro sequence camera multiple source.

• Image resources not being cached by the browser in the Application of the ADF

  Fusion Middleware Version: 11.1.1.5

  WebLogic: 10.3.5.0

  JDeveloper Build: Build JDEVADF_11.1.1.5.0_GENERIC_110409.0025.6013

  Project: Custom Portal Application WebCenter integrated with ADF custom workflows. Oracle Access Manager 11.1.1.5 used for authentication.

  Within our application WebCenter portal, see static ADF resources served by the servlet "resources" being cached by the browser as WebLogic sends us a header Cache-Control 'Public', as well as a directive expires at a later date. This works perfectly but we do not see this with static content in-app.

  In contrast to resources under < context_root > /afr / * images directly in the application are returned to the browser without header a Cache-Control, so some browsers are asking the image whenever the page is loaded. We have thousands of users, so it's originally a large number of unnecessary applications.

  Resources (images) are in a directory called 'images' in the folder 'public_html '.

  How can we ensure that WebLogic/ADF sends a "Public" Cache-Control directive in the browser when the resources are being requested?

  Any help much appreciated.

  Thank you

  Hello

  Please make sure that the images are uploaded through the servlet by reference or resource direct public_html/subfolder in the configurations of your image. Alternatively, you can put your images in a JAR file as shown here

  http://www.Oracle.com/technetwork/developer-tools/ADF/learnmore/86-images-from-jar-427953.PDF

  Frank

• What is the problem with the sequences on RAC environments?

  Version: 10 g, 11G
  
  I've never worked on CARS. But I keep seeing discussions about the problems with the sequences on CCR environments. What exactly is the
  basic question?

  Can be performance issues if you have a large number of sequences of nocache as it may cause heavy IO for the system tablespace.

  Given that each instance will have its own cache seqeuence that some sites are unhappy with significant gaps in the values, this can cause.

  There was also a blocking problem caused by heavy simultaneous new connection activity requiring the issuance value audsid for the session of v$. To solve this just to the top of the cache size to 1,000 or 10,000 by default if you are on a version where the value was not moved upward by Oracle already.

  As far as the first two numbers go that my view is if the sequence does not need to be cached you need not use a sequence to generate value. If you need a value without interval then you need to get your value from a table column value that is part of the transaction and do not use a sequence in a first time.

  Sequences are designed for speed and concurrentcy, and this competition is priced at gaps.

  HTH - Mark D Powell.

• VI locked at the end of the sequence

  Hello

  I'm pretty new to LabVIEW and very new to TestStand, so I hope it's just a case of me being a bit thick.

  I have a sequence calling a few screws it is a mixture of purely based on windows screws and a host of Windows VI for an FPGA on VI.

  If I test a scenario with the file in a sequence, then all is well. If, however, I try to run it again, it seems that the VI is not running at the end of the sequence (in spite of fill a TestStand get its test result data). I get the following error information:

  Details:

  Close the file to Test Controller.vi-> Test Controller.vi.ProxyCaller
  LabVIEW: An input parameter is not valid. For example if the input is a path, the path can contain a character not allowed by the operating system such as? or @.
  =========================
  NOR-488: Command requires GPIB controller charge controller.

  Error code:

  1; User-defined error code.

  Any help would be greatly appreciated. I've been hunting around for help, manuals, forums and the internet in general for much of the day without success.

  See you soon,.

  Simon

  It must unload the VI if all measures that use the VI have a similar setting. If the VI is used nowhere else, charge time is actually the longest of all the places where it is used. Also if an another VI which is always loaded as references that VI will effectively keep the vi loaded. Since all unload unloads all the modules, it is possible that somehow made VI refers to VI another you always load.

  Hope this helps,

  -Doug

• When the sequence of process template client file is loaded for execution?

  As part of a custom process template I've created, I would like to make a few changes in the sequence of the client before file called by the process template. These changes will be then be restored after the loop finishes USE (I'm changing the sequential model).

  Another thread, I discovered that TestStand sequences cannot be edited structurally once they have been loaded for execution. My question is: what is client sequence template process ' for execution "?

  After some research, I discovered that the sequence of the client file is not locked to prevent changes to the sequence editor until the "Reminder of the main sequence" sequence step call runs in the model process entry point. At this stage, the sequence of the client file is loaded dynamically as the module at this stage.

  However, before this point, there are two places that the file of the client's sequence is used, and I want to assure you that they don't 'load the customer file for execution.  The Runstate.ProcessModelClient property is a reference to the object the client file SequenceFile and exist as soon as the entry point is called. In addition, the engine must know about the sequence of the client file to correctly call reminders of process model. Do any of these things make the movie of 'responsible for performance customer file?

  It boils down to this: can I do safely from the structural changes to my file of sequence of the client during the ProcessSetup and ProcessCleanup?

  According to the information I found in another post (see the comments of Eric_Crank on page 2), it is allowed. However, in this case customers were only make changes to the property Data of the RunState.ProcessModelClient. I want to assure you that I can use the TestStand API on the reference too.

  Also, just FYI, I got this works. I can add steps to the sequence MainSequence customer sequence file of the group stage of installation of the point of entry of the process model via the API TestStand. I ask here if make sure that it is a safe thing to do, and that there is nothing I plan not to.

  Thank you.

  Josh,

  If your sequence allows the option "optimize no concave calls this sequence", the first time the sequence run TestStand stores a copy of the execution of the sequence in a cache associated with running. As long as the sequence is in this cache you can not change, and TestStand considers that the sequence for 'run' file (see the SequenceFile.IsExecuting property). You cannot unload 'enforcement' sequence files (see SequenceFile.CanUnload). Sequences remain in the cache until it is closed. There is no way for you to remove the sequences of this cache, but you can prevent them to be added to the cache by turning off the option "optimize... ». Disabling this option should have no impact on the performance that you call the sequence only once.

  -Erik

• what you get when the sequence is used as output, tension or strain?

  Mr President

  I m using scxi1520 with watchkeeping configuration, by setting the entry like strain, what value I get is not strain that I calculated analytically. someone told me that what value you get by that is tension not strain, I calculate strain from here by the formula.

  I don't get that this is strain or tension.

  I have an extensometer of 120 ohms with two gage factor. Please clear my doubt I have with this as soon as possible.

  Think about the data being represented in different ways.  Your contribution is the strain.  The strain gauge that converts resistance.  The bridge becomes the resistance a tension.  An amplifier multiplies by a constant tension and perhaps subtracts an offset.  The analog digital converter changes the analog voltage to a sequence of tension with two possible values (0 to 5 V) at every moment in the (digital) sequence.  The computer processes these digital tensions as numbers that have a strong correlation with the amplitude of the analog voltage.

  But you try to measure the deformation, so you don't really care voltage analog or digital, except that need to know the relationship between them and the original strain.

  Your tension measures data acquisition system. You must provide conversion from units of the strain through calibration.

  Lynn

• Can someone please tell me what is the problem here? There is a blank gap in the timeline.

  Hey,.

  There is a gap in the main sequence. It is visible with activation video once again, but disappears quickly after that. I think the problem is luma key in the subsequence or new update. A project which was started a year ago. Can someone help me with this please?

  What happens when you turn off hardware MPE?

• MERGE statement is increment the sequence. It problem?

  
  Hi all

  I use a merge statement to update thousands of data in a table. If the criteria does not match (WHEN NOT MATCHED) I wrote an insert statement that contains a reference to the sequence. And it works very well.

  My question is, will this increment also sequence even though it won't insert the statement in the script of fusion. I think it will be. Right?

  Say, I update 20K record will be the sequence also increment by 20 times k. If his past all work around.

  Thanks in advance.

  Here is a less effective solution to your problem that creates a function to get the value of the following sequence, but I agree with Justin cave that because of the cache you must lose the values.

  SQL > CREATE SEQUENCE s_emp;

  Order of creation.

  SQL > CREATE or REPLACE FUNCTION s_emp_nextval

  2 RETURN NUMBER

  3 AS

  4 v_nextval NUMBER;

  5 BEGIN

  6. SELECT s_emp.nextval

  7 INTO v_nextval

  8 DOUBLE;

  9 v_nextval of RETURN;

  10 END;

  11.

  The function is created.

  SQL > MERGE IN emp t (USING)

  2. SELECT empno, ename

  3 FROM emp) s

  4. WE (t.empno = s.empno)

  5. WHEN MATCHED THEN

  UPDATE 6

  7 SET t.ename = s.ename

  8 WHEN NOT MATCHED THEN

  9 INSERT (empno, ename)

  10 VALUES (s_emp_nextval, 'SMITH');

  14 lines merged.

  SQL > SELECT s_emp. NEXTVAL

  2 FROM dual;

  NEXTVAL

  ----------

  1

• When you export .mp4, often has "audio ghost" of the clip before repeating in the empty space on the sequence

  When I export a (h264) .mp4 in the sequence (using the encoder) I often get a video that has the sound that repeats.  (that is to say: 'what is that?', 'what is that?","what's that?")  I think it is especially when there is empty space on the sequence between the clips.  Does anyone else have this problem?  Try to clean the media Cache, hoping that this will solve it... taking a lot of time out of the edition actually.  Adobe, fix!

  (Running the latest Premiere Pro CC 2015 on iMac, Yosemite)

  I just did a quick test. I uninstalled Media Encoder and reinstalled for the most up-to-date version, 2015.1 CC. Then I re-exported a portion of my order which showed this problem audio ghosting. Voila! More no audio duplication.

  Incredibly grateful that it was as simple as that... Phew!