Concurrency Wait On Insert Statement?
Feb 19, 2013
I am running Oracle RAC 2 nodes 11g R2 on AIX 7.1
I have a table with unique index, and the application is doing inserts/updates into this table.Suddenly and for about half a minute I faced a high concurrency waits on all the processes running these inserts for one node. I saw this high concurrency wait in the top activity screen of the OEM only on one of the nodes. knowing that the processes doing these inserts are running on both nodes.
All what I have that in this half minute I see high concurrency wait in OEM top activity screen related to this insert statement and when I clicked on the insert I found high "enq: TX - index contention". Again this was only on one node.After this half minute everything went back to normal.What could be the reason and how can I investigate it ?
View 3 Replies
ADVERTISEMENT
Jan 12, 2011
If i inserted the values in table it gets inserting very few rows only.I dont know y it is?
View 15 Replies
View Related
Jul 19, 2013
Yesterday i got wait event when executed simple select from table.This select was like:
SELECT emp_number from employer where subs_id = 111
I got one row, select is very fast.In our Core Bank System we have package with function which returns such information. I tested this select on test DB, and nothing wrong. But when I executed such select and package on Production DB, DB Admin saw that 88 sessions waits when my session release the resource. But what can happen, it was simple select? I used PL/SQL developer to get information from table:
1) SELECT emp_number from employer where subs_id = 111 then
2) Package with this function
Another users used Oracle Forms screen to execute package. How simple select statement could stop all DB?
BANNER
1Oracle Database 10g Enterprise Edition Release 10.2.0.5.0 - 64bi
2PL/SQL Release 10.2.0.5.0 - Production
3CORE 10.2.0.5.0 Production
4TNS for 64-bit Windows: Version 10.2.0.5.0 - Production
5NLSRTL Version 10.2.0.5.0 - Production
[code]...
Forgot to say that after succeful execution on Prod DB I disconnected, and in EM my session was INACTIVE.
View 3 Replies
View Related
Dec 11, 2012
I am trying to look at wait events for a long running query in TOAD.I start the query on one instance of TOAD and open the Session Browser on another instance.But I am surprised to find that in "TOtal Waits" on the RHS-> SQL*Net message from client is the longest time taking and is already -> 178577 units whereas I have just started the query.
Whereas in the Current Waits it shows DB File Scattered Read currectly as some seconds.
View 5 Replies
View Related
May 15, 2010
how to insert data in oracle table without writing insert statement in oracle 9i or above. i am not going to write insert all, merge, sqlloder and import data.
View 2 Replies
View Related
Feb 24, 2012
INSERT INTO LKP_ASSET_LOCATION (LOCATION) VALUES ('AMERICA'S CUP VILLAGE')
View 2 Replies
View Related
Jul 18, 2012
can i use ORA_ROWSCN to handle concurrency in oracle, That is i want to read ora_rowscn and keep it in my form or BL then before update i want to read ora_rowscn and match with old version.
1)Since it is updated after commit , how can it affect the application?
2) should i use some Guid in place of ORA_ROWSCN?
3) sequence in each table with trigger in place of ORA_ROWSCN?
View 2 Replies
View Related
Nov 28, 2012
When running into what should be an OptimisticConcurrencyException in entity framework, i'm getting an update exception as follows:
"A null store-generated value was returned for a non-nullable member 'DateChanged' of type 'FDDT.Model.FeedArray'."
I'm using the DateChanged field as the concurrency tracking field. In entity framework DateChanged has the following properties:
StoreGeneratedPattern: Computed
Concurrency Mode: Fixed
I have a trigger set on this field as follows:
TRIGGER FEED_ARRAY_TRIG_DTCHG before update on FEED_ARRAY for each row
begin
:new.DATE_CHANGED := sysdate;
end;
I've tried setting this concurrency tracking field to "Identity" instead, however that causes another error when I run into a concurrency exception and refresh using the client wins option.
View 2 Replies
View Related
Dec 4, 2012
Most of my day to day work involves the support of DB2 on AIX and z/OS. I support the database infrastructure for one business system that runs on the Oracle RDBMS. The application is Oracle Transportation Management. The non-production environments don't get much traffic. If I sign into the TEST or DEV Enterprise Manager DB Control screen, the following warning is almost always listed on the main page:
Metrics "Database Time Spent Waiting (%)" is at 44.00384 for event class "Concurrency"
Enterprise Manager reports that this metric is continuously fluctuating above and below the warning threshold of 30% of db time when the environment is idle.To investigate(and I am no oracle expert, far from it), I ran the following:
SELECT * FROM v$session_event
WHERE WAIT_CLASS='Concurrency'
ORDER BY TOTAL_WAITS DESC;
By far, the top two entries in the result are the following:
SIDEVENTTOTAL_WAITSTIME_WAITEDAVERAGE_WAITMAX_WAIT
124os thread startup12041423733.5218
359os thread startup150653433.5521
[code]...
Does this indicate a possible problem with the operating system?
View 2 Replies
View Related
May 13, 2011
I have one query i have create one table T1 in this table i have this three colm (EMPNO,ENAME,HIREDATE) and i have to insert raw from this two table T2 and T3 in T2 table colms are (EMPNO,SAL) and T3 table colm are (EMPNO,MGRID) so which query i have to run
View 4 Replies
View Related
Oct 2, 2012
We have a Oracle 10g database with RAC and Dataguard. When we look at the AWR report, the wait time shown by Oracle for this database is very high.
Service Time : 15.36%
Wait Time : 84.64%
This would imply Oracle is waiting for resources 85% of the time and only processing SQL queries during 15% of its non-idle time. However when we check the OS (RHEL), the iowait is only about 10% and the CPU is 80% idle. This means that that processing horsepower is available.
As such, the results between the OS and Oracle database (AWR report) seems contradictory. OS says we have CPU/IO capacity, however Oracle says we don't.
View 17 Replies
View Related
Jul 5, 2010
I wanted to print 'null' when the column value is null. Actually, i am doing something like this
select empno||','||''''||ename||'''''||','||comm||','||sal from emp
It gives the following output for example
7369,'pointers',,200
If I use the above values to form a insert statement it throws
an error. As 'comm' value is not there.
I wish to get something like
7369,'pointers','',200
or
7369,'pointers',null,200
from the above select query
note I dint copy paste the query exactly from my sql*plus session as I am away from my oracle machine
View 14 Replies
View Related
Jun 5, 2010
I read in a book that you can't use subquery in an insert statement . E.g:
1)insert into dates (date_col) values (select sysdate fom dual) but when i tried using subquery like this:
2)insert into regions values ((select max(region_id)+1 from regions), 'Oce');
This query worked but 1st query didnt.From my assumptions if we try inserting values in table with the subqueries for a particular column as in 1st query , it will throw error but not while inserting values in all columns as in 2nd query.
View 5 Replies
View Related
Dec 4, 2012
i'm executing a load test using the below statement:
INSERT INTO BPMBI.PPROCINSTANCE SELECT * FROM BPMBI.PPROCINSTANCE_BKP WHERE ROWNUM < 501;
COMMIT;
EXIT;
I've been using the same for a few days without any error while now wehn i try to use the same i get below error:
SQL> insert into pprocinstance select * from pprocinstance_bkp where rownum <= 500;
insert into pprocinstance select * from pprocinstance_bkp where rownum <= 500
*
ERROR at line 1:
ORA-01858: a non-numeric character was found where a numeric was expected.
I've been trying to check what the issue is and when i execute the rownum < 140 works fine while rownum < 150 is showing the same error.
View 6 Replies
View Related
Oct 3, 2013
Given below a block of code, this code compiled successfully on one DB but returns error on other.DB version is same. I know sqlerrm can not be used directly but how it compiled successfully on one DB.
declare
l_procedure_name CONSTANT VARCHAR2(100) := 'copy_device_status_tables';
l_procedure_id CONSTANT INTEGER := 301;
[Code].....
Error report:
ORA-06550: line 12, column 75:
PL/SQL: ORA-00984: column not allowed here
ORA-06550: line 11, column 5:
PL/SQL: SQL Statement ignored
06550. 00000 - "line %s, column %s:\n%s"
*Cause: Usually a PL/SQL compilation error.
View 5 Replies
View Related
May 22, 2010
What is the syntax to write an insert statement which will commit the transaction by it self,not using an exclusive commit statement after wards.
View 2 Replies
View Related
Jul 17, 2012
Here's sample code :
declare
i number;
l_rec number;
cursor c1 is select i from t1;
begin
[code]....
After executing Data must be inserted into t2..If any error is there it should insert into t2 with status 'E' and move on T2
i fflag
---------
11 E
111 Y
1111 Y
The code above is failing after inserting 11 E into t2 table
View 5 Replies
View Related
Jan 22, 2012
I am creating the following two tables...no issues here:
CODECREATE TABLE COURSE_SECTION
(
Csecid NUMBER(8) CONSTRAINT COURSE_SELECTION_NUMBER_pk PRIMARY Key,
Cid NUMBER(6) NOT NULL CONSTRAINTS COURSE_SELECTION_Cid_fk REFERENCES COURSE,
Termid NUMBER(5) NOT NULL CONSTRAINTS COURSE_SELECTION_Termid_fk REFERENCES TERM,
[code]...
The issue I am having is actually inserting data into the table:
CODEINSERT INTO ENROLLMENT
VALUES (100, 1000, 'A' );
INSERT INTO ENROLLMENT
VALUES (100, 1003, 'A' );
[code]...
But I get an ORACLE error of
ORA-02291- integrity constraint (User1.ENROLLMENT_CSECID_FK) violated - parent key not foundHow can the parent key not be found when I have it declared/created in the above statement?
View 3 Replies
View Related
May 24, 2011
I have a query regarding the use of rownum inside the insert statement.
For example, I have a sample table as: sample1(aa date, bb number);
Insert
INTO sample1
VALUES (SYSDATE, ROWNUM);
this statement is working fine in Oracle 9i but gives error in Oracle 11.2.0.1. The error is ORA-976 ,
Why this error coming in Oracle 11g and how to resolve it?
Our Environment: UNIX AIX 5.3, Oracle 11.2.0.1 database
View 1 Replies
View Related
Mar 5, 2012
I would like to insert a value if that value is not existing in the table (example for a column which contains date only new dates should be inserted and if the date already exists in the column then it needs to get updated )
example of scenario...
date s1 s2 s3
in the above if the date is new..it should get inserted with the appropriate slot no.(s1,s2,s3) if the date already exists it needs to update the no.in slot no.
View 8 Replies
View Related
Sep 30, 2010
I have a table with a column type long raw. Now i want to insert an image from directory by an insert statement. Is it possible?
View 2 Replies
View Related
Jun 18, 2013
I want to grant a privilege through an insert statement into a sys table.Why do not grant the privilege through the classic way : grant select on t to l_user; ?
Because I want to do it remotely.I am connected to db1.I want to grant select on t2 to u2_b from u2_a.I assume that all DDL are DML. So a grant is equivalent "somewhere" to an insert.I tried to do my requirement locally, and here is the output.
SQL> conn scott/aa
Connecté.
SQL> -- step 1 : try to grant "normally" a select on dept to hr from scott
SQL> grant select on dept to hr;
Autorisation de privilèges (GRANT) acceptée.
SQL>
SQL> conn sys/a as sysdba
Connecté.
SQL> -- step 2 : Then, we connect to sys to see the row inserted in dba_tab_privs
SQL>
SQL> col GRANTEE format A10
SQL> col OWNER format A10
[code]...
Then if I can do it locally, I can do it remotely through a db link.
View 2 Replies
View Related
Mar 6, 2012
we are inserting a data in table by selecting data from another table.This is part of a very big procedure and the code is like
Loop
SELECTMAX(biz_trn_no) + 1
INTOv_biz_tran_no
FROMnew_business_transactions
WHEREnb_srno = nb_sr_no;
[code]....
Is there any way I can get this functionality without using a sequence? I assume corelated query would be slow and analytic.
View 6 Replies
View Related
Apr 7, 2011
this is my problem,
insert into t1
select *
from t2
where condition;
Select * from t2 where condition retrieves in example 1000000 records but I only need to insert into t1 the first 100 records.
Is there anyway to abort/limit the insert into t1 to 100 records?
This can´t be used because only applies the condition to the first 100 rows of t2 and it's not valid.
insert into t1
select *
from t2
where condition
where rowcount<100;
View 16 Replies
View Related
Feb 8, 2012
what is the difference between after or before insert in row level trigger and statement level trigger.
View 3 Replies
View Related
Jun 3, 2010
I need to create a SQL insert statement with mutipleValues and an select statement I am trying this it works -
insert into uwa_crew_ids(crew_ID, CREATION_DATE, CREATED_BY,LAST_UPDATE_DATE,LAST_UPDATED_BY, LAST_NAME, first_name )
values
( uwa_crew_ids_s.nextVal,sysdate, 1767,sysdate, 1767,'TEST1', 'NITA')
This statement does not work (with or without keyword) Is there any alternate syntax
insert into uwa_crew_ids(crew_ID, CREATION_DATE, CREATED_BY,LAST_UPDATE_DATE,LAST_UPDATED_BY, LAST_NAME, first_name )
( uwa_crew_ids_s.nextVal,sysdate, 1767,sysdate, 1767,(select last_name, first_name from uwa_crew_ids where guid = '8795EAAFBE694F8EE0440003BA2AEC90' ))
View 3 Replies
View Related
Jun 6, 2013
oracle 11gr2
linux
how to generate insert script by using command prompt. Actually am using toad generating insert statement but it is taking too long time to generate.
View 4 Replies
View Related
Dec 27, 2011
I can not find the sql plan for insert statement,why?
Select sql_text From v$sql a
Where a.SQL_ID = '0yungrk19a277';
-------------------------------
INSERT INTO OS_USERBILL_ACTV_READ_MON_DT
(MONTHNO, MAILCODE, OPERTYPE, PROVCODE, AREACODE, DAY_TOTALCOUNT, TOTALCOUNT,
CREATETIME, MODIFYTIME, SENDER_TYPE, SENDER_DOMAIN)
VALUES
(:B9 , :B1 , :B2 , :B3 , :B4 , :B5 , :B6 , SYSDATE, SYSDATE, :B7 , :B8 )
[code]....
View 4 Replies
View Related
Jun 24, 2012
If we insert a row in a database table then the new row stays at database buffer cache in SGA (until commit), right?. The target table is not affected (before commit). The new row is saved after commit.
I saw a concepts at Sybex oracle 10g oca book (Page 406) as follows:
" INSERT statements use little space in an undo segment; only the pointer to the new row is stored in the undo tablespace. To undo an INSERT statement, the pointer locates the new row and deletes it from the table if the transaction is rolled back. "
My question is If the row is not saved at table before commit, if we issue rollback then how oracle delete from table? I think the new row is deleted from database buffer cache in SGA.
View 2 Replies
View Related
Oct 10, 2011
I am using Oracle 11g Release 11.2.0.1.0
OS: windows
I am taking an example of EMP table in a scott schema.
EMP_1 is also a same structure of EMP.
Here is the Insert statement used.(i might get where clauses etc in the real scenario i am taking a simple example here)
INSERT INTO SCOTT.EMP_1(JOB,ENAME,EMPNO) SELECT JOB,ENAME,EMPNO FROM SCOTT.EMP
table EMP is having around 25 million records.
i would like to do a commit after every 1000 records. as my redo log is getting full if i use a single commit at the end.
Quote:pls note: Increasing of redo log is not possible as of now
is there anyway i can acheive this without cursor bulk collect.
View 7 Replies
View Related
