SQL & PL/SQL :: ORA-20000 / ORU-10027 - Buffer Overflow?
Oct 7, 2010
I am running script which drop all public synonyms and create private synonyms for all eligible objects. I am passing value to procedure through cursor and I am using dbms_output.
ERROR at line 1:
ORA-20000: ORU-10027: buffer overflow, limit of 999999 bytes
ORA-06512: at "SYS.DBMS_OUTPUT", line 32
ORA-06512: at "SYS.DBMS_OUTPUT", line 97
ORA-06512: at "SYS.DBMS_OUTPUT", line 112
ORA-06512: at line 101
I read that by: SET SERVEROUTPUT ON SIZE unlimited would resolve this problem.
What are the effects?Do I need to check any disk space, or any effect on the memory?
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Nov 16, 2011
when i am executing the procedure, i am getting the below error.
I have added below lines in the procedure.
DBMS_OUTPUT.ENABLE(100000);
Even though i am getting the error.
ORA-20000: ORU-10027: buffer overflow, limit of 100000 bytes
ORA-06512: at "SYS.DBMS_OUTPUT", line 32
ORA-06512: at "SYS.DBMS_OUTPUT", line 97
ORA-06512: at "SYS.DBMS_OUTPUT", line 112
ORA-06512: at "Procedure name", line 199
ORA-06512: at line 1
20000. 00000 - "%s"
*Cause: The stored procedure 'raise_application_error' was called which causes this error to be generated.
*Action: Correct the problem as described in the error message or contact the application administrator or DBA for more information.
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Jul 14, 2011
I got a below error while running a procedure!
ORA-20000: ORU-10027: buffer overflow, limit of 2000 bytes
at that time i am using below parameters in that script:
set serveroutput on size 1000000
DBMS_OUTPUT.ENABLE(1000000);
But still getting same error.. how can i resolve this issue..
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Jul 30, 2012
Does cache buffer chain latch and buffer busy wait event are related to one any another.
Latch definition from Google says : Latches are simple, low-level serialization mechanisms to protect shared data structures in the system global area (SGA).
what does it mean my protect. Does this mean protects from aging as per LRU algorithm and getting removed from SGA
or
protect from other processes ,say from example from simultaneously DML operations.
or
both
Does buffer busy wait event occurs , because of the cache buffer chain latch ?
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May 6, 2013
have problems with the following procedure - in both cases the problem seems to be in line 115 (RAISE;):
CREATE OR REPLACE PROCEDURE EFWP."P_BUILD_VOP_ENVELOPE"(
paramPlanungId LONG,
paramEnvelopeWKTPolygon VARCHAR)
AS
PRAGMA AUTONOMOUS_TRANSACTION;
[code]...
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Jan 3, 2012
ora 20000 index partition in an unusable state. what can i do
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Dec 20, 2011
I've just installed an Oracle 11.2.0.1.0 64 bit server on my windows 7 machine in order to play around while using attempting to run
exec dbms_stats.gather_table_stats('eii','v2x4e')
I get the following:
ORA-20000: Unable to analyze TABLE "EII"."V2X4E", insufficient privileges or does not exist
ORA-06512: at "SYS.DBMS_STATS", line 20327
ORA-06512: at "SYS.DBMS_STATS", line 20360
ORA-06512: at line 1
My initial google searches indicate that I need the select any table and analyze any privileges. I don't think that can be right/appropriate - but I've granted them anyway to no avail.
Select * from user_tables
returns tables in the System and sysaux tablespaces, but not my own schema/tablespace?
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Aug 23, 2013
I am writing a query and the query is resulting in Numeric Overflow.
SELECT
(power((Trlg_5Yr_Anl_Ror_Pt/100+1),5)-1)*100 AS Trlg_5Yr_Cum_Ror_Pt
FROM Cdp
where ....
and .....
In this above query,the power function is throwing error. Since the value in the column "Trlg_5Yr_Anl_Ror_Pt" is very big,applying power function is throwing Numeric Error. What can I do to handle this?
IN TABLE Cdp,column "Trlg_5Yr_Anl_Ror_Pt" is defined as NUMBER. Will Changin it to FLOAT resolve the issue.
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Oct 31, 2010
SQL> ed
Wrote file afiedt.buf
1 begin
2 for i in 3159572060..3159572274 loop
3 insert into recmsisdn(msisdn)
4 values(i);
5 end loop;
6* end;
7 /
begin
*
ERROR at line 1:
ORA-01426: numeric overflow
ORA-06512: at line 2
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Apr 12, 2013
I would like to know the buffer size using by our dba when he set export?
I know that it's possible to define it when we realize the export but its possible to know this value after export?
There's a sql*plus command to find this value?
N.B : we dont have documentation
Its for an urgent need.
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Oct 25, 2010
I have a few questions and doubts regarding to cache buffer chains and lru chains.
1. What can possibly cause the cache buffers chain ?
2. Can it be resolved by increasing the free lists and increasing the inittrans of the block after identifying the hot buffers? (The table spaces are not a ASSM.)
3. How can we classify where the cache buffer chain is caused? Is there anything like extent level, header level? ( i don't understand this part due to the reason i see many operations against cache buffer chain event in stats pack reports).
4. Is cache buffer chain is related to the cache buffers chain event too?
5. In such case, tuning either of the contention will resolve the other if both exists?
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Apr 30, 2013
What is By Default Buffer size in Oracle ......?
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Jun 27, 2012
Does the counter of event buffer gets include the logical reads ? Does the mertic buffer gets include the event of reading from undo buffer ?
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Jan 10, 2013
/* Formatted on 2013/01/10 16:22 (Formatter Plus v4.8.6) */
CREATE OR REPLACE PACKAGE pk_batch_feds
AS
[Code]....
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Feb 22, 2013
how can we check the size of data buffer cache.
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May 20, 2013
what will be best buffer cache hit ratio for a database for good performance
note : in general
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Apr 18, 2012
I want to know what exact process happens in oracle architecture when an update query is fired.
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Dec 14, 2012
I'm trying to create a table with a select statement. I want to populate this new table with the aggregated value from a VIEW. Following is the code used for creating the VIEW,
create or replace view FINAL_WEB_LOG
as
select SESSION_ID,
SESSION_DT,
C_IP,
CS_USER_AGENT,
tab_to_string(CAST(COLLECT(web_link) AS t_varchar2_tab)) WEBLINKS
from web_views_tab
group by C_IP, CS_USER_AGENT, SESSION_DT;
I want to create a table with WEBLINKS and SESSION_ID which is a sequence from another table.
CREATE TABLE FINAL_WEB
AS
SELECT weblinks
FROM final_web_log
UNION
SELECT session_id
FROM WEB_VIEWS_TAB;
This now gives me the following error,
SQL Error: ORA-06502: PL/SQL: numeric or value error: character string buffer too small
This has to do with the field, Weblinks, it does have longer values.
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Aug 25, 2013
is there any method to store a value in "copy buffer" ?
I mean, for example, if i have defined a global varaiable as
Quote::global.name := 'orafaq';
Then what i need is a command something like:
windows_copy_buffer := :global.name ;
So that later on when i press control+v, then it paste the word "orafaq".
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Mar 3, 2010
What's the difference between a dirty buffer and a redo buffer?
My understanding is that a dirty buffer is a changed buffer or whenever data changes in the buffer cache, it's marked as dirty. Also, a redo buffer keeps track of changes that were made to the data, so it's also referring to changed data as well...DWBn writes dirty buffers to disk and LGWR writes redo data to redo log filesHow can we differentiate between the two?
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May 27, 2011
I learnt that logWriter writes in the redo log files when redo log buffer is 1/3 full, it means that 66 % of redo log buffer are always empty and never used,
if no, isn't a waste of memory (66 % always empty !)
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Mar 26, 2012
give a script to find how much my db buffe cache and redo log buffer cache is used and how much is free.
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Mar 3, 2011
Database : 9.2.0.7
Os : windows 2003 sevrer standdard edition
RAM 4 Gigs
The buffer cache hit ratio in this server is around 83%, where it normaly was around 98% before i did some maintenance activities.
I have done some maintenance activities in January on this database.
Maintenance activties includes below steps
1.In production i have deleted old data in the production tables
2.Reorganized tablespaces,tables
3.Rebuild indexes for those tables.
4. At last collected statistics for those tables.
Now after this activity the buffer cache hit ratio is very low.
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Nov 30, 2012
Considering the below factors, I am planning to increase the buffer cache value from 256Mb to 512Mb.
1. Buffer cache hit ratio value is around 35% even in the normal period.
2. free buffer requested value is below during peak & normal hours below.
Statistic Total per Second per Trans
--------------------------------- ------------------ -------------- ------------
free buffer requested 54,694,995 15,226.9 2,523.7
free buffer requested 23,412,674 6,501.7 2,585.9
3. most of the top 5 physical reads & logical reads queries are well tuned and some of queries are doing FTS on small tables (table count min 1500 max 35000). SO indexing option is not required for these queires. But these queries getting executed frequently.
SQL> show sga
Total System Global Area 2148534928 bytes
Fixed Size 731792 bytes
Variable Size 1879048192 bytes
Database Buffers 268435456 bytes
Redo Buffers 319488 bytes
5.top 5 waitevents during db slow performance & high cpu utilization (>80%) issue.
Top 5 Timed Events
~~~~~~~~~~~~~~~~~~ % Total
Event Waits Time (s) Ela Time
-------------------------------------------- ------------ ----------- --------
latch free 1,848,898 153,793 52.00
buffer busy waits 395,280 87,201 29.49
db file scattered read 3,488,648 34,199 11.56
enqueue 4,052 10,897 3.68
CPU time 5,567 1.88
6. Top 5 waitvents during normal activities and CPU utilization is around 40%.
Top 5 Timed Events
~~~~~~~~~~~~~~~~~~ % Total
Event Waits Time (s) Ela Time
-------------------------------------------- ------------ ----------- --------
CPU time 1,860 45.32
db file scattered read 1,133,669 985 23.99
imm op 776 605 14.73
sbtinfo2 208 139 3.40
sbtbackup 2 123 3.00
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Sep 27, 2010
1) Is shutting down the DB flush all the data buffers, from the buffer Cache?
2) In any oracle version, do we have any way to flush only the buffer Cache.
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Dec 20, 2011
I noticed oracle background process ora_fbda_padwsdpr is suffering from buffer busy wait. When i further finding the object, it was on SYS_FBA_FA tables.
what is this is causing BUFFER BUSY WAIT. Also to add we have disabled flashback database.
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Aug 19, 2010
1)If i issue a DELETE statement to delete a row, will this statement drag any data from the datafile to database buffer? How is the change made by a DELETE statement recorded in buffer cache? How is this change then applied to the data in datafiles after commit?
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Jan 12, 2011
We are having daily syncing script which use to drop and import of one major schema.
When we do import with parameter BUFFER=209715200, it takes approximatively 4 hours & when we do without the parameter it takes 6 hours.
So i humbly request to above scenario of import process with buffer parameter in concern.
Also to expose, import is done in freeze hours.
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Mar 28, 2011
How can i know which objects used keep buffer cache?
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Jan 15, 2011
I have some confusion about Keep Pool in Buffer Cache.
1. What is the reasoning for placing a table in the KEEP buffer pool because if it is frequently accessed, it will be around when needed (ie if it is constantly being accessed it will not age out) .
2. Would the table be still in the Default Pool if the Keep Pool is not sized and the command is being issued alter TABLE SCOTT.EMP storage (buffer_pool keep) ?
3. If the database is restarted will the table be wiped out of the Keep Pool and again be pinned to the Keep Pool ?
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