too small Oracle of the buffer character ora-19011 chain

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• 'overall target of auto PGA' is too small compared to the overall target of the PGA

  Hi all.
  
  The database is 11gR 2 (11.2.0.3) on a linux machine.
  
  'global setting of target PGA' is about 25 giga size.
  'overall target of auto PGA' is about 5.5 gigabytes size
  'Allocated total PGA' is about 25 giga size.
  "total PGA inuse" is about 19.5 giga size.
  
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  -----------------------------------------
  
  My question is following:
  
  1. what component consumes about 20 gigabytes size of the pga (total 25 giga).
  If the PL/SQL or Java memory consumes 20 giga size, isn't too compard to a total of size pga (25giga)?
  Does rely on applications? (we have procedures/packages in the database server-side)
  
  2. the total amount allocated (25 giga) PGA is close to "Global PGA target parameter (25giga).
  "total PGA inuse" is about 19.5 giga.
  
  Is that mean that data from free space of 5.5 giga size PGA?
  I'm a bit confused between 'PGA Total allocated' and 'total PGA inuse.
  
  ------------------------------------
  
  {code}
  
  Select name, decode (unit, 'bytes', round(value/1024/1024), value) mega_value, unit
  v $ pgastat
  
  
  
  aggregate the target PGA 25 600 bytes parameter
  overall target of auto PGA 5 505 bytes
  global memory related to 1024 bytes
  Total PGA inuse 19 483 bytes
  PGA total allocated 25 503 bytes
  PGA maximum allocated 53 426 bytes
  total number of freeable memory PGA 2 486 bytes
  number of processes 5 946
  Max process count 6 039
  PGA memory freed to OS 39,677,868 bytes
  Total PGA used to auto workareas - bytes
  Maximum PGA used to auto workareas 15 543 bytes
  Total PGA used for manual workareas - bytes
  Maximum PGA used for manual workareas 38 293 bytes
  during the allocation, count 3 733
  the treated bytes 17,288,505 bytes
  3 144 169 bytes read or written additional bytes
  cache hit percentage 85%
  has count 13,254,278 (total)
  
  
  {/ code}
  
  Thanks in advance.
  
  Best regards.
  
  Published by: 869578 on October 7, 2012 20:39

  869578 wrote:
  -----------------------------------------

  My question is following:

  1. what component consumes about 20 gigabytes size of the pga (total 25 giga).
  If the PL/SQL or Java memory consumes 20 giga size, isn't too compard to a total of size pga (25giga)?
  Does rely on applications? (we have procedures/packages in the database server-side)

  The place to look is v$ process_memory (see, for example this blog post - ignore the fact that he speaks a bug 3 years ago, the SQL to query the memory usage is the bit important to you).

  2. the total amount allocated (25 giga) PGA is close to "Global PGA target parameter (25giga).
  "total PGA inuse" is about 19.5 giga.

  Is that mean that data from free space of 5.5 giga size PGA?
  I'm a bit confused between 'PGA Total allocated' and 'total PGA inuse.

  Basically Yes, your system currently thinks only about 5.5 GB of memory that can be called on any process requiring more memory to work. When a process requests from memory (for example, sorting) it will not necessarily return at the time wherever he has done with her, because she plans to use it again in the near future. This is why the amount awarded may be higher than currently in use. If another process.

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

  {code}

  Select name, decode (unit, 'bytes', round(value/1024/1024), value) mega_value, unit
  v $ pgastat

  aggregate the target PGA 25 600 bytes parameter
  overall target of auto PGA 5 505 bytes
  global memory related to 1024 bytes
  Total PGA inuse 19 483 bytes
  PGA total allocated 25 503 bytes
  PGA maximum allocated 53 426 bytes
  total number of freeable memory PGA 2 486 bytes
  number of processes 5 946

  {code}

  You have almost 6 000 live processes - and it takes a couple of MB per process just to get a few bits of SQL, is not really surprising that you have already allocated about 19 GB of memory - what is an average of 3 MB per process. You CAN see, however, that a few processes have to run away with a big piece, which is why you can watch process $ v and v$ process_memory in detail.

  Concerning
  Jonathan Lewis

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• SQL error: ORA-01873: the interval leading precision is too small

  Hello
  
  My requirement is to get the current timestamp in the format microsec Epoch.
  
  I am trying to execute the following query
  
  Select (CAST (((current_timestamp-TO_DATE (1er janvier 1970 00:00:00 ', ' 'JJ-MM-AAAA HH24:MI:SS)) * 24 * 60 * 60 * 1000000) AS varchar (32))) as "dt" from dual;))
  
  I get the following error
  Error from the 1 in the command line:
  Select (CAST (((current_timestamp-TO_DATE (1er janvier 1970 00:00:00 ', ' 'JJ-MM-AAAA HH24:MI:SS)) * 24 * 60 * 60 * 1000000) AS varchar (32))) as double 'dt'))
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  SQL error: ORA-01873: the interval leading precision is too small
  01873 00000 - "the interval leading precision is too small."
  * Cause: The precision of the interval leading is too small to store the
  specified interval.
  * Action: Increase the accuracy of foreground of the interval or specify a
  meantime, with smaller leading precision.
  
  But if I tried to do
  Select (CAST (((sysdate-TO_DATE (1er janvier 1970 00:00:00 ', ' 'JJ-MM-AAAA HH24:MI:SS)) * 24 * 60 * 60 * 1000000) AS varchar (32))) as "dt" from dual;))
  works fine, but I get the bad epochtime sysdate has no time zone information.
  
  Please help me how to do the first query to work so that I can get the current_timestamp change to gmt and convert it in time.
  Please let me know if there is another way to get the Epochtime.

  Depending on whether you want to or not to include the fraction of a second use:

  with t as (
             select  current_timestamp at time zone 'gmt' - to_timestamp_tz('01/01/1970 00:00:00 GMT','MM-DD-YYYY HH24:MI:SS TZR') interval_diff,
                     cast(current_timestamp at time zone 'gmt' as date) - to_date('01/01/1970 00:00:00', 'MM-DD-YYYY HH24:MI:SS') num_diff
               from  dual
            )
  select  cast(
               (
                (
                 (
                  extract(day from interval_diff) * 24 + extract(hour from interval_diff)
                 ) * 60 + extract(minute from interval_diff)
                ) * 60 + extract(second from interval_diff)
               ) * 1000000
               AS varchar(32)
              ) as "ts",
          cast(num_diff * 24 * 60 * 60 * 1000000 AS varchar(32)) as "dt"
    from t
  / 
  
  ts                   dt
  -------------------- --------------------
  1336237158093000     1336237158000000
  
  SQL>  
  

  SY.

• Literal string is too long and too small string buffer

  Hello

  Can someone please explain what the difference is between these two errors.

  The maximum size of the character in SQL is 4000 and PL/SQL its 32 k. So if a string literal exceeds this limit "string literal too long" error message is triggered by oracle.

  Here is an example

  SQL> select 'xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
    2  xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
    3  xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
    4  xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
    5  xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
    6  xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
    7  xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
    8  xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
    9  xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
   10  xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
   11  xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
   12  xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
   13  xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
   14  xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
   15  xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
   16  xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
   17  xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
   18  xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
   19  xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
   20  xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
   21  xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
   22  xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
   23  xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
   24  xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
   25  xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
   26  xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
   27  xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
   28  xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
   29  xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
   30  xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
   31  xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx' str
   32    from dual;
  select 'xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
         *
  ERROR at line 1:
  ORA-01704: string literal too long
  

  Now, when you try to set a string variable with a value greater than the defined size, you get "too small character string buffer.

  Here is an example

  SQL> declare
    2    var varchar2(1);
    3  begin
    4    var := 'aa';
    5  end;
    6  /
  declare
  *
  ERROR at line 1:
  ORA-06502: PL/SQL: numeric or value error: character string buffer too small
  ORA-06512: at line 4
  

  Oracle error message there two of each, one for SQL and one for PL/SQL.

  ORA-19011: character string buffer too small

  Cause : the result of the chain asked is too big to go back

  Action : get the result like a lob instead

  ORA-01704: string literal too long

  Cause : the string literal is longer than 4000 characters.

  Action : use a string literal of more than 4,000 characters. Longer values can only be entered using bind variables.

  PLS-01905: character string buffer too small

  Cause : an error occurred while moving a string from a source to a destination. This error occurs if, for example, an attempt is made to move an a string of 10 characters into a buffer of 1 character. The cause of this error may not always be obvious. For example, the following will cause this error: a varchar2 (1); b the number; b: = 10; a: = b; An error occurs because an implicit conversion causes the number 10 to become the string '10', which does not fit in memory buffer of characters of 1 assigned to the variable.

  Action : first, look for the character string assignment statements where the size of the buffer is incompatible. If there is none found, then consider the case of an implicit conversion shown in the example above.

  PLS-00172: string literal too long

  Cause : the string literal is longer than 32767octets.

  Action : use a string literal of at most 32767octets.