The SQL has aged in the cursor cache.

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• Why my SQL Plans age very quickly?

  Hi all
  
  I worked on the 11g R2 (Windows) and I do some settings of a particular query. When I run the query several times, it's fast enough, but what I noticed is that the plan of age very quickly. When I run the query even 5 minutes later, so it seems that Oracle analyze again and it takes much more time.
  
  Also, when I want to see the plan in dbms_xplan.display_cursor after 5 minutes I have the following error:
  
  NOTE: cannot fetch SQL_ID plan: avcd12sdzr3, CHILD_NUMBER: 1
  Check the value of SQL_ID and CHILD_NUMBER;
  It could also be that the plan is no longer in the cursor cache (check v$ sql_plan)
  
  Someone knows it why my plan is aging rapidly, and how do I fix?
  
  Thank you very much.

  Hello

  three different scenarios are possible here: loads, radiation or sharing. I would start by looking at V$ SQL_SHARED_CURSOR, V$ SQL and DBA_HIST_SQLSTAT to determine which of the three is underway. "Charges" means the plan gets years out of the pool shared more or less 'naturally', either because the pool is not large enough, or because there are a lot of other things in it, or its fragmentation is the cause of space to use less efficient internal cleaning and so kick more often. "Radiation" means that the cursor is marked invalid because of DOF or updated statistics against an object referenced in the query. There are called "loads" and "invalidation" columns in V$ SQL DBA_HIST_SQLSTAT views and who can help you to understood if one of the two scenarios took place.

  The third scenario, sharing, is a bit more subtle. It could be for example the size of one of the bind variables changes considerably from time to time, and so the cursor can not be reused. In this case, a new child cursor would be analyzed, and the reason why existing cursor could not be shared could me more often found in V$ SQL_SHARED_CURSOR views.

  Best regards
  Nikolai

• Address of the instantiation of the cursor in the SQL trace files > = 11.2.0.2

  Oracle Doc ID 11677061.8 mentions in 11.2.0.2 10046 trace / SQL_TRACE displays the address of the instantiation after the # rather than the number of cursor.

  Can someone explain what a "address instantiation" is and how to use it to identify the sliders in the trace of the files in an improvement on number of cursor.

  I have a theory that it may be useful when dealing with accumulated from several trace files using trcsess trace data.

  For the most part, I'm just curious to see if I can improve my performance skills by exploiting this change.  I can't find a single reference in the article or the blog describing the change.

  An example of the largest number of cursor that I see these days.

  PARSING IN CURSOR #48003855878616 len=65 dep=0 uid=370 oct=6 lid=370 tim=1366907498174148 hv=1477430740 ad='209f99a028' sqlid='40hwrntc0zmfn'

  ANALYSIS #48003855878616:c = 0, e = 4842, p = 0, cr = 0, cu = 0, set = 0, r = 0, dep = 0, og = 1, plh = 0, tim = 1366907498174146

  
  

  Pre 11.2.0.2 what it would look like
  

  
  

  PARSING IN CURSOR #3 len=65 dep=0 uid=370 oct=6 lid=370 tim=1366907498174148 hv=1477430740 ad='209f99a028' sqlid='40hwrntc0zmfn'

  ANALYSIS # 3: c = 0, e = 4842, p = 0, cr = 0, cu = 0, = 0, r = 0, dep = 0, og = 1, plh = 0, tim = 1366907498174146

  
  

  
  

  Here's what I read on the subject in 2010:

  The problem is that with the restructured cursor caching in 11g a statement executed again would come by number of different cursor for each run. As the number of cursor and the sqltext did not since the last use of the slider, the sqltext was printed for each execution of a cursor. It's a significant problem for applications like Oracle E-Business, where is typical SQL statement it is many thousands of characters. In some cases, this has increased the size of the file trace of an order of magnitude, and I'm sure it could be even worse.

  The solution was to pass the handle of the cached cursor (which is probably the address) and display instead of the cursor number. This should mean that the text is printed only on the first analysis of the SQL statement and the size of the trace file goes back to something reasonable.

  I believe you can "join" these new id values cursor from a trace file in a column of address in v$ sql, but I have not checked myself.

  I do not think that the change was intended to give the advantage of trcsess you are suspect, but it could turn out to be useful for this.

• Hi, while writing an email online using Firefox 3.6.3, I was using one of the "CTRL + left arrow or right" to move the cursor on the text. I must have pressed some other key because the screen has become huge - and I can't scroll vertically or horizont

  Hi, while writing an email online using Firefox 3.6.3, I was using one of the "CTRL + left arrow or right" to move the cursor on the text. I must have pressed some other key because the screen has become huge - and I can't scroll vertically or horizontally, which makes the pages of Mail of Hotmail impossible. I have connected since using the Explorer MSFT and it works very well. This problem occurs only on the page of Mail of Hotmail Live not on the home page or other.
  Could you please let me know if there is a problem with Firefox, or if you have any advice on how to restore the appearance of Hotmail in Firefox?

  This has happened

  Just once or twice

  == I'm compiling an email in Hotmail Live

  See this:
  https://support.Mozilla.com/en-us/KB/page+zoom

• With rendering problems. Rendering started taking 10 times longer. I have pleanty of memory, I cleaned the media cache and now it will not even made a single wipe small transition. Goes at the beginning of the timeline, as if she has made the effect.

  With rendering problems. Rendering started taking 10 times longer. I have a lot of memory, I cleaned the media cache and now it will not even made a single wipe small transition. Goes at the beginning of the timeline, as if she has made the effect.

  I determined the cause. Damaged media. Copy old sequence in new chronology cross me if I return after any change in the timeline. I am able to export own media. No change to hardware and software recently. I'm running Windows 10. (Hatred, dating back to 7)

• I can't get my LR to open without this message: "Lightroom has encountered an error when reading the preview cache and need to quit."

  Lightroom has encountered an error when reading the preview cache and needs to stop smoking.  Help, please

  Hi crystalc,

  It seems that the preview cache has become corrupted.

  You must go to the location where your catalog is stored via finder/File Explorer and get rid of the file ending with Previews.lrdata (not .lrcat)

  Default location of the catalog is under Pictures\Lightroom

• By creating a form that has several text boxes to a single character on the same line, how can I get the cursor to go in the next text box automatically after inserting a character?

  By creating a form that has several text boxes to a single character on the same line, how can I get the cursor to go in the next text box automatically after inserting a character?

  Create a text field and use the option 'comb n characters.

• Trying to open the message box appears 'lightroom has encountered an error when reading the preview cache and needs to stop smoking' Lightroom "Lightroom will try to solve this problem, the next time that it launches" OK when you press closed Lightroom an

  Trying to open 5 Lightroom, a message appears 'Lightroom has encountered an error when reading the preview cache and needs to quit' "Lightroom will attempt to solve this problem, the next time he throws" when OK key Lightroom quit unexpectedly and the computer returns to the office.  This persisted for 2 days and it has not set itself.  help please.

  Click OK close Lightroom.

  You must manually go to the location of your Lightroom by Finder catalogue / file Explorer and get rid of the Previews.lrdata folder

  By default, the location would be in Pictures\Lightroom folder

• Lightroom has to close immediately after splash because it encountered an error when reading the preview cache

  does anyone have a solution to this problem?

  Lightroom has to close immediately after splash because it encountered an error when reading the preview cache

  Frustrated

  You must remove this file previews.lrdata. It won't do any harm, and it does not solve the problem.

• Opening 5 LR I see "Lightroom has encountered an error when reading the preview cache and need to quit."  I deleted the folder Preview Cache completely (saved).  What can I do next to load Lightroom?

  Anybody out there can help get LR works again.

  Open LR 5 I see message "Lightroom has encountered an error in its cache of the preview reading and needs to stop smoking".  I deleted the folder Preview Cache completely (saved).  This does not solve the problem.  What can I do next to load Lightroom?

  If you remove the preview cache folder and the problem persists, then most likely you have found the wrong preview cache (it's for a different catalog previews) and you must find the right cache overview. You should use the search function of your operating system to find all files whose name ends with Previews.LRDATA and remove each of them until you can open your Lightroom Catalog.

• At the launch of lightroom a message saying: Lightroom has encountered an error when reading the preview cache and need to stop smoking.

  Lightroom has encountered an error when reading the preview cache and needs to stop smoking.

  What can I do to make this work?

  

  Restart Lightroom

• My text box is frozen and has a dotted around her line, how can I get the cursor inside?

  My text box is frozen and has a dotted around her line, how can I get the cursor inside? I work in Indesign CS3, I wrote a page of A4 format with a unique and with a large amount of text inside text box. In the end, I brought a JPEG in the page. Now they have a thin line dotted around them and appear "frozen." I have not seen the dotted line instead of the line before usual text box.

  Points: The text box is not locked, the layer is not locked. Nothing on the page goes live with command + A to select.

  It happened between the Time Machine backups so that I can not restore.

  All I need are the captured keystrokes.

  What can happen when you put the JPEG, I myself can I have moved that file folder, a larger file, on the desktop, then placed the JPEG.

  Re-opening Indesign didn't work; restart did not work.

  Solutions appreciated.

  The dotted lines mean that your items are on a master page and not a document page.

• Print out the values of SQL attributes and attributes of cursor...

  How to print values for the rest of the SQL attributes or the attributes of the cursor.
  
  % LYING
  % NOTFOUND
  % ISOPEN

  Hi Isabelle,.

  The cursor attributes % FOUND, % NOTFOUND, OPEN any return BOOLEAN value.

  So if we try to display its value in DBMS_OUTPUT. Put_line it gives following error

  declare
  cursor c is select a from test2;
  r number;
  begin
  open c;
  fetch c into r;
  dbms_output.put_line(C%found);
  close c;
  end;
  
  ORA-06550: line 8, column 1:
  PLS-00306: wrong number or types of arguments in call to 'PUT_LINE'
  ORA-06550: line 8, column 1:
  PL/SQL: Statement ignored
  

  That is why these attributes are used with, IF the conditions to check the TRUE or FALSE value returned by them as below.

  declare
  cursor c is select a from test2;
  r number;
  begin
  open c;
  fetch c into r;
  if c%found then
  dbms_output.put_line('TRUE');
  END IF;
  close c;
  end;
  
  TRUE
  
  PL/SQL procedure successfully completed
  

  Twinkle

• Have a problem with Lightroom 5.4.  Given that the program crashed yesterday, will not start, it comes up with the message "Lightroom has encountered an error when reading the preview cache and need to quit."  "Lightroom will attempt to fix this ti net pr

  Have a problem with Lightroom 5.4.  Given that the program crashed yesterday, will not start, it comes up with the message "Lightroom has encountered an error when reading the preview cache and need to quit."  "Lightroom will attempt to solve this problem, the next time he throws."  Except that it isn't, I get the same message and the program closes.  Anyone know what I can do to fix it?  Can not backup, can't do anything.

  There are dozens of discussions in this forum that describe the fix

• Error: "LR has encountered an error when reading the preview cache and need to quit."

  Trying to open it, a message "LR has encountered an error when reading the preview cache and needs to stop smoking. LR will attempt to fix the next time it starts. "apppears and it stops. Tried many launches and the same error appears. Help!

  Post edited by: Brett N

  OK, go to the Lightroom folder (in images by default) and delete the folder/file ending with the extension.lrdata. Previews have somehow become corrupt.