Long Running Update Statement In Sqlplus Session
Oct 7, 2010
I ran one long running update statement in my sqlplus session, where it took hours together since we have millions of rows on the table.lock the system and left the office , the next day I found my system is rebooted, hope the session would have performed the long running update statement.
Now, I need to issue a commit for the session, since my system is rebooted I don't have opened session with me. so, How to issue commit to the session, which I have issued long running update statement.
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Feb 21, 2011
After Migrating from 11.1 to 11.2 SQL Statements are running for a long time. Our DBA told that they don't have any execution plans for the SQL Statements in 11.1
I don't want to rewrite the SQl Statement as this is working fine in 11.1. Our DBA conveyed us that they are using DBMS_STATS.AUTO_SAMPLE_SIZE for Schema Level.
But we have planned to generate DBMS_STATS.GATHER_TABLE_STATS Estimate Percentage ==> 100 for only the tables that are used in SQl Statements.
Of course we can change the parameters.. But we are afraid it may have some side effects.
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Aug 25, 2010
Is there any way i can Get how many rows are processing with UPDATE statement while the Update statement is still running.
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Jan 5, 2012
I have a problem with a statement that normally execute in few second but after 50h the session is still active and is still waiting for null event.
V$session_wait
EVENT WAIT_TIME SECONDS_IN_WAIT STATE
---------------------------------------------------------------- ---------- --------------- -------------------
null event -1 178737 WAITED KNOWN TIME
V$session
SID STATUS PROGRAM LAST_CALL_ET
---------- -------- ------------------------------------------------ ------------
364 ACTIVE f90runm@CENTRAL1 (TNS V1-V3) 178737
My Oracle version : Oracle9i Enterprise Edition Release 9.2.0.2.0 - 64bit Production
System version : HP-UX V1
I tried tracing the session but no trace file is generated it same there is no activity.
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Nov 23, 2011
An user is running some queries and that's making database hang. I want to view what queries this user is running. Can this be done by session auditing turning on?
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Jul 31, 2013
I have a Datamart DB which has a continuously increasing volume. I run a daily optimize job, to have the data analysed using the below:-
EXECUTE dbms_stats.gather_schema_stats(ownname=> 'xxx' ,estimate_percent=> 25 , DEGREE => 4, cascade=> TRUE );
analyze table xxx.abc compute statistics; But this optimization itself is taking nearly 4 hrs to complete and I can't afford to have the delay.
Is there a better way of running this optimization?
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Oct 25, 2011
We have a program that is taking about 13-14 hours to run and we need to generate traces to see where it is taking so long. I usually use 10046 for the tracing, I'm wondering if the traces can be built incremently so that it doesn't become one huge trace file.
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Sep 4, 2008
I have a query similar to the one below which is embedded in a PRO*C program. The query works fine when run in the PRO*C program against a 8i database but fails with an "ORA-02015: cannot select FOR UPDATE from remote table" error when run against a 10g database. The PRO*C program is executing the sql using "EXEC SQL".
QUERY: Select last_name, first_name from Member
where ....
FOR UPDATE OF LAST_NAME;
The other thing to note is this SQL query works fine via sqlplus in a 10g environment.
ADDITIONAL DETAILS: The above query is selecting data from a base table via a user view
VIEW: select * from
otherschema.member@connection_identifier;
This view was created in this manner to allow the user account access to the underlaying table without creating explicit permissions.
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Apr 27, 2012
I have a Query(report) which is running in <5 mins in one Scheme, where as the same is running for a long time in second schema. I have identified that an Index is scanning for more than 2000 Millions of records in second Schema, but this is scanning only 440 Millions in First Schema and hence it is fast. I am expecting the same to be done in Second schema.
I have verified the following
All records in tables in 2 schemas are same.
All indexes are same
Analyzed the tables
Gathered Histogram on all the columns as per the first schema.
But now i still have the same problem, don't know what could be the problem.
Table_nameNum_RowsBlocks
PRPSL_LST_T5866107159
PRPSL_WKFLW_ACTVTY_T5829904030
ITEM_CHR_VAL_T5134340104049020
ITEM_RGN_ASSN_T8571220137215
Also attached 2 screen shots of OEM Plans..
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Mar 4, 2010
I am using 10.2.0.4 oracle database on Solaris 10. We are running some Peoplesoft upgrade on one of the database from last 6-7 hours. The status of the session is INACTIVE from couple of hours. And the sql_id is null for these sessions.
select sid,serial#,STATUS,to_char(logon_time,'DD-MON_YY HH24:MI:SS') from v$session where username like '%&usern%' ORDER BY 4 DESC;
533 2234 INACTIVE 04-MAR_10 01:59:02
525 5919 ACTIVE 04-MAR_10 01:54:50
534 4186 INACTIVE 04-MAR_10 01:05:15
520 2320 INACTIVE 04-MAR_10 00:29:44
[code].....
While when i see the current sql from the v$active_session_history, it keep on changing after every 10-15 minutes. Using below query to find the sql_text for the session from v$active_session_history.
select sql_id, sql_text
from v$sql
where sql_id in (
select sql_id
from v$active_session_history
where session_id=511
[code].....
We have not faced issue like this during Peoplesoft upgrade. what could be the reason that the status is not changing while the base sqls keep on changing after every 10 minutes.
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Sep 22, 2010
I have an issue with rather complicated function.Basically it is using DBMS_SQL to execute a very long statement with many parameters (~6000 of them) and binding them with DBMS_SQL.BIND_VARIABLE. Variables are called :1,:2,...,:6000.
When this arguments set is too large - I am receiving error "ORA-00939: too many arguments for function".
Currently I am thinking about dividing the query into subqueries and executing them all with performance decrease.
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Sep 20, 2010
We are firing a normal Drop command on our database and the database version is 10.2.0.4.The database is running on AIX v5.The command is taking more time than usual .
When i am monitoring the session i can see that a call is being made to procedure "aw_drop_proc".Could i ask you if this is something that is taking more time than usual.
We are not having any partitions on the nested tables .We have a pack of tables and we are dropping this pack through a procedure.The pack comprises of nested tables & normal tables.To drop a nested table it is taking around 6 seconds(Table with no rows) and a normal table(With no rows) it is taking 17 milli seconds.We have a partition on Normal table.
The same operation in windows is taking very less time when compared to AIX.
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Aug 13, 2010
I'm new to the sqlplus,
User ID Failed_timestamp
----------------------------------
userA 20100801 11:22:33
userB 20100802 11:22:33
userA 20100802 12:22:44
userA 20100803 13:34:55
userC 20100803 20:21:23
userB 20100804 16:34:56
I wanna to get the last failed time from each user. what is the select statement?
my expected result will be:
userA 20100803 13:34:55
userB 20100804 16:34:56
userC 20100803 20:21:23
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Mar 28, 2008
I am running this statement in a Java DAO and it results in an SQLException. I'm trying to get the DB schema. If I run this statement separate in SQLPlus, it successfully returns the schema. Why this is failing in my Java program?
ResultSet r = s.executeQuery("SELECT sys_context('USERENV', 'CURRENT_SCHEMA') FROM S_DUAL;");
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May 3, 2013
I have two identical tables from different DB's and I need to copy a row from db1 and insert into db2 if it does not exist or update it if it does(on the tables pk).
This is what i was trying until i realized replace drops the whole table where i thought it dropped the row and inserted the new.
copy
from db1
to db2
replace table2
using
select *
from table1
where x = blah
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Jan 23, 2011
I use sqlplus in oracle (linux). I have a table and the string cell have long string . Like below :
CODEcolumn A Column B
A BBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBB
BBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBB
.....................................BBBBBBBBBBB
So, I need to edit/update the row A and the value in Column B. But the string in Column B is so long and I only need to edit one character. IF I use update command , I need to type very long string and it is easy to wrong edit .
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Jan 23, 2011
I use sqlplus in oracle (linux).I have a table and the string cell have long string .
Like below :
column A Column B
A BBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBB
BBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBB
.....................................BBBBBBBBBBB
So, I need to edit/update the row A and the value in Column B.But the string in Column B is so long and I only need to edit one character.IF I use update command , I need to type very long string and it is easy to wrong edit .
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Apr 22, 2013
I am in the process of converting my skill in oracle and this time PRO*C from Windows to Linux. I have oracle 11g R2 installed on a UBUNTU (12.04) server and have installed the instant client as described in
[URL]
This has a query which will run in SQLPLUS but fails with PRO*C
:~/Projects/proc/proctest1$ proc INAME=proctest.pc SQLCHECK=NONE ONAME=proctest.c LNAME=proctest.lis LTYPE=long
Pro*C/C++: Release 11.2.0.3.0 - Production on Mon Apr 22 21:00:18 2013
Copyright (c) 1982, 2011, Oracle and/or its affiliates. All rights reserved.
System default option values taken from: /home/neill.rutherford/instantclient_11_2/precomp/admin/pcscfg.cfg
PCC-W-02109, SQLCHECK=NONE is no longer supported.. using SYNTAX
[code]....
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Sep 7, 2010
I have to update 20 and 60 million records of a table. The update statement are
1> 20 million recs
update mycustomer set update_time=add_months(sysdate,240) where seq_num = 1;
commit;
2> 60 million recs
update mycustomer set update_time=sysdate-seq_num where seq_num <> 1;
commit;
Q1> Is there any way to improve performance
Q2> Will parallel dml improve performance
Q2> Would a pl/sql cursor make any difference in speed.
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Aug 17, 2010
This is my query:
UPDATE t_tt_hours a
SET a.sak_request = (
SELECT b.sak_request
FROM t_requests b, co c
[Code]...
The problem I am having is that it is updating all rows even when it is pulling back a null value for b.sak_request. I've tried adding b.sak_request is not null to the select statement like this:
UPDATE t_tt_hours a
SET a.sak_request = (
SELECT b.sak_request
FROM t_requests b, co c
WHERE b.nam_eds_tracking_id = c.id_dir_track_eds
[Code]...
but it doesn't seem to make a difference. The reason I need to do this is that the difference between where it matches with a valid (non-null) value is 396 rows vs. 12,484 rows which is too time consuming to run on my page.
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May 30, 2013
i am reading the columns value from different table but i want to update it with single update statement. such as how to update multiple columns (50 columns) of table with single update statement .. is there any sql statement available i know it how to do with pl/sql.
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Mar 21, 2011
I have one doubt about update command in sql. How to update the multiple rows with different values using update statment.
Eg:-
SQL> set linesize 500;
SQL> set pagesize 500;
SQL> select * from emp;
SQL> select empno,ename,sal from emp;
SQL> select empno,ename,sal from emp;
EMPNO ENAME SAL
---------- ---------- ----------
7839 KING 5000
7698 BLAKE 2850
7782 CLARK 2450
7566 JONES 2975
7654 MARTIN 1250
[Code]....
The above table contains 14 records. Now i would like to update the salary column with different values like
EMPNO SAL
===========
7839 18000
7698 20000
7782 5000
...
...
...
7934 25000
How to update above values with single update query.
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Jun 22, 2012
MY DB Version: 10.2.o
OS: Windows Server 2003
I am trying to import on table which i have the export dump file which i take using expdp previously when i load that table on the same host
by using below command:
expdp scott/tiger@db10g tables=EMP,DEPT directory=TEST_DIR dumpfile=EMP_DEPT.dmp logfile=expdpEMP_DEPT.log
after that i zip that dump and move it to external usb and now i need that table i copy that table and unzip that that dump
Command i am using to do the import is :
impdp scott/tiger@db10g tables=EMP,DEPT directory=TEST_DIR dumpfile=EMP_DEPT.dmp logfile=impdpEMP_DEPT.log
But the query of import is still runing even not showing any amount of rows to be imported.
i already make the tablespace in which the table was previosuly before dropping but when i check the sapce of tablespace that is also not consuming one error i got preiviously while performing this task is:
Connected to: Oracle Database 10g Enterprise Edition Release 10.1.0.2.0 - Production
With the Partitioning, OLAP and Data Mining options
Master table "CDR"."SYS_IMPORT_TABLE_03" successfully loaded/unloaded
Starting "CDR"."SYS_IMPORT_TABLE_03": cdr/********@tsiindia directory=TEST_DIR dumpfile=CAT_IN_DATA_042012.DMP tables=CAT_IN_DATA_042012 logfile=impdpCAT_IN_DATA_042012.log
[code]....
i check streams_pool_size it will show zero and then i make it to 48M and after that
SQL> show parameter streams_pool_size;
NAME TYPE VALUE
-----------
streams_pool_size big integer 48M
But still it takes time
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Oct 15, 2012
I'm using Oracle SQL Developer and querying on date fields. I use this "alter session" statement to set my default date time format to get my datetime values. My question is, is there a way I can incorporate the following statement into my "select" query so that Crystal can read it? I use the statement below before my select statement to query datetime differences. Problem is, Crystal doesn't like the statement below.
Using TO_CHAR( ) and formatting my date fields that way doesn't work when I have to take the difference between date fields to the minute/second level. That's why I use the alter session command below, but I cannot seem to incorporate it with my select statement as a Crystal data source.
alter session set nls_date_format = 'DD-MON-YYYY HH24:MI:SS'
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Feb 6, 2012
with the code below i have created 2 varaibles v_start_date and v_finish_date, i have inputs for them, thats fine the problem is when the inputs are empty, i have put a ELSIF statement in the begin section of the code, now if the variables have input from the textbox's then it works fine but if they are empty, the programme reads into the if statement executes that bit of code but doesn't seem to open the cursor up and execute that bit of code.
DECLARE
v_start_date enrollments.enrollment_date%TYPE:= :START_DATE;
v_finish_date enrollments.enrollment_date%TYPE := :FINISH_DATE;
CURSOR no_grades_cur IS
SELECT class_id,stu_id, status
FROM enrollments
[code].....
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Apr 29, 2013
how do I detect I/O before running sql statement?
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Feb 27, 2013
I need to filter a SQL statement with an application item value retrieved from session state. I am assuming I could do this using a Dynamic Action on a Page Load event but I'm not sure where to go from here. How could I append the filter to an existing report page SQL statement?
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Jan 23, 2009
I am getting ORA-00933 after running below mentioned delete statement;
DELETE FROM REPOSITORY.MEDIASEGMENT MS
INNER JOIN REPOSITORY.ROUTINGEVENT RE ON TRIM(MS.Segment_Key) = TRIM(RE.uuid)
INNER JOIN REPOSITORY.TEMPCONTACT TC ON TRIM(RE.Contact_Key) = TRIM(TC.vduid)
WHERE TC.CREATETIME BETWEEN (TO_DATE('04/24/2008 00:00:00','MM/DD/YYYY, HH24:MI:SS')) AND
(TO_DATE('04/30/2008 23:59:00','MM/DD/YYYY, HH24:MI:SS'))
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Feb 1, 2012
It started out pretty simple where I had to update about 40 contacts in the database and I would have 40 separate update statements I would run. The task has jumped to about 300 contacts and I don't want to run 300 update statements. I would like to run this all at once. For example:
update contact
set name = 'Name1'
where row_id = 'row_id1'
update contact
set name = 'Name2'
where row_id = 'row_id2'
update contact
set name = 'Name3'
where row_id = 'row_id3'
My DB is oracle 10, and TOAD is version 9.
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Dec 5, 2011
how can i run dml statement on the oracle transparent gateway for sql server ,such as insert ,update,delete.
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