SECONDS_IN_WAIT column of v$session in 10gr2!!

Hi, all.
Recently, I have found the unbelievale value for SECONDS_IN_WAIT in v$session view. The database is 10.2.0.2.0.
select sid, wait_time, seconds_in_waits,wait_class, event,state from v$session;
SID WAIT_TIME SECONDS_IN_WAITS WAIT_CLASS EVENT
500 0 117874 Cluster gc buffer busy WAITING
In the above example, session 500 is waiting for something for 117874 seconds.
117874 seconds is 32.7 hours(117874/60/60).
Thus, session 500 is waiting for 32.7 hours.
The unit of SECONDS_IN_WAITS column is really "seconds"????
http://download.oracle.com/docs/cd/B19306_01/server.102/b14237/dynviews_2088.htm#REFRN30223
Thanks and Regards.

Hi, yes the metric is on seconds, you must review the definition for this field on the view, look this.
 
 
If WAIT_TIME = 0, then SECONDS_IN_WAIT is the seconds spent in the current wait condition.
 

If WAIT_TIME > 0, then SECONDS_IN_WAIT is the seconds since the start of the last wait, and SECONDS_IN_WAIT - WAIT_TIME / 100 is the active seconds since the last wait ended.

 
 
 
Regards.

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COMMAND column in V$SESSION table

Is there any table which stores all the meaning of various values that can be stored in COMMAND column of V$SESSION table
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Thx

You can find the various values for V$SESSION.COMMAND in Table 7-5 COMMAND Column of V$SESSION and Corresponding Commands found in the link below to build your own table.
http://download-east.oracle.com/docs/cd/B19306_01/server.102/b14237/dynviews_2088.htm#sthref3985

COMMAND column in V$SESSION just show s SELECT

Hi,
i queried command column in v$session, but it shows only 3(which is for SELECT) and 0 (which is for unknown), even i update some thing its not shown.
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Hi Pavan,
following is the list for that
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5     ALTER CLUSTER     6     UPDATE
7     DELETE     8     DROP CLUSTER
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11     ALTER INDEX     12     DROP TABLE
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15     ALTER TABLE     16     DROP SEQUENCE
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19     CREATE SYNONYM     20     DROP SYNONYM
21     CREATE VIEW     22     DROP VIEW
23     VALIDATE INDEX     24     CREATE PROCEDURE
25     ALTER PROCEDURE     26     LOCK
27     NO-OP     28     RENAME
29     COMMENT     30     AUDIT OBJECT
31     NOAUDIT OBJECT     32     CREATE DATABASE LINK
33     DROP DATABASE LINK     34     CREATE DATABASE
35     ALTER DATABASE     36     CREATE ROLLBACK SEG
37     ALTER ROLLBACK SEG     38     DROP ROLLBACK SEG
39     CREATE TABLESPACE     40     ALTER TABLESPACE
41     DROP TABLESPACE     42     ALTER SESSION
43     ALTER USER     44     COMMIT
45     ROLLBACK     46     SAVEPOINT
47     PL/SQL EXECUTE     48     SET TRANSACTION
49     ALTER SYSTEM     50     EXPLAIN
51     CREATE USER     52     CREATE ROLE
53     DROP USER     54     DROP ROLE
55     SET ROLE     56     CREATE SCHEMA
57     CREATE CONTROL FILE     59     CREATE TRIGGER
60     ALTER TRIGGER     61     DROP TRIGGER
62     ANALYZE TABLE     63     ANALYZE INDEX
64     ANALYZE CLUSTER     65     CREATE PROFILE
66     DROP PROFILE     67     ALTER PROFILE
68     DROP PROCEDURE     70     ALTER RESOURCE COST
71     CREATE MATERIALIZED VIEW LOG     72     ALTER MATERIALIZED VIEW LOG
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75     ALTER MATERIALIZED VIEW     76     DROP MATERIALIZED VIEW
77     CREATE TYPE     78     DROP TYPE
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81     CREATE TYPE BODY     82     ALTER TYPE BODY
83     DROP TYPE BODY     84     DROP LIBRARY
85     TRUNCATE TABLE     86     TRUNCATE CLUSTER
91     CREATE FUNCTION     92     ALTER FUNCTION
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95     ALTER PACKAGE     96     DROP PACKAGE
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99     DROP PACKAGE BODY     100     LOGON
101     LOGOFF     102     LOGOFF BY CLEANUP
103     SESSION REC     104     SYSTEM AUDIT
105     SYSTEM NOAUDIT     106     AUDIT DEFAULT
107     NOAUDIT DEFAULT     108     SYSTEM GRANT
109     SYSTEM REVOKE     110     CREATE PUBLIC SYNONYM
111     DROP PUBLIC SYNONYM     112     CREATE PUBLIC DATABASE LINK
113     DROP PUBLIC DATABASE LINK     114     GRANT ROLE
115     REVOKE ROLE     116     EXECUTE PROCEDURE
117     USER COMMENT     118     ENABLE TRIGGER
119     DISABLE TRIGGER     120     ENABLE ALL TRIGGERS
121     DISABLE ALL TRIGGERS     122     NETWORK ERROR
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158     DROP DIRECTORY     159     CREATE LIBRARY
160     CREATE JAVA     161     ALTER JAVA
162     DROP JAVA     163     CREATE OPERATOR
164     CREATE INDEXTYPE     165     DROP INDEXTYPE
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169     DISASSOCIATE STATISTICS     170     CALL METHOD
171     CREATE SUMMARY     172     ALTER SUMMARY
173     DROP SUMMARY     174     CREATE DIMENSION
175     ALTER DIMENSION     176     DROP DIMENSION
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How to enable AI(accent insensitiv) for one column without changing session

Following is my test SQL:
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COL
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convert(<Any Chinese Character>, 'US7ASCII') will all return same character '?'.might be an matter of using the right characterset:
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STR CONVERTED_STR
ä a
á a
â a
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About the last_call_et column in v$session

Hello,
Can someone help me about a behaviour that is very strange ...
We have connection about SAS on a database which manipulate Oracle table and others SAS Structure.
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It last a long time ....
During the query, we have time to see at the v$session table...
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Jonathan Lewis wrote:
user12046632 wrote:
When you say :
A FETCH is a database call :
That means that it must affect the value of 'last_call_et' or not ?"A Fetch is a database call"
"last_call_et" -- certainly sounds like that could be something to do with database calls, perhaps End Time of LAST database CALL.
A parse is also a database call, as is an execute ... I feel that perhaps I was a little too concise with my description. You asked why SAS could be doing lots of calls (although that wasn't exactly how you put the question) and I replied that calls could include fetches. And yes, the last_call_et is reset on every fetch (amongst other things - and ignoring the special behaviour of background processes).Ok
>
(accordint to me, only to user's activity do so and not to "database internal callsl") ! isn't it ?You don't want to believe everything you read on the internet - even if it did come from the online manuals. But a "fetch" is not a "database internal call" anyway, it's a call from a client to the server.Be sure that i don't do so.
But the explanation of Oracle of the term 'cal' is not so precise at all ...
>
Your follonwing explanations seems to answers contrarily ....
But the question is there : what sort of call affetcs the value of "last_call_et"All database calls - which you should read as "all calls from the client to the server".Ok
>
>>
>>
When you say
all_rows plan => parse call, execute call ..... with very long call time, lots of fetch calls
first_rows_n plan => parse call, execute call ... with very short call time, lots of fetch calls
In the first case you would see last_call_et constantly growing until the fetches started
In the second case last_call_et would keep resetting to zero so fast you probably wouldn't see it as a non-zero value.
I don't understand : ok for the conséquences on the timing ... but if there are a lot of fetch call in both cases : the behaviour on the 'last_call_et' has to be equal ?True - but in one case I've included an execute call that is active for a very long time, and in the other I've proposed an execute call that is active for a very short time. (And execute calls are calls, and I did ask you about the exact details of your observations.)Ok
If we consider that every call reset to 0 the value of 'last_call_et',
why, in the case of launching the same request by TOAD, shouldn't i see the reset to 0 when the fetches works (because in TOAD during the whole query, which means since the click on "launching query" to the retrieving of data, the value did not reset to 0) ?
>
>>
When you say
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"in the case" : in the case of the v11 or the v10 ?11g
In my case : i'am on a v10.2.0.3 ::: Is there a bug ?Not that I know of.ok. So it is in V11 that you have an incorrect behaviour ....
>>
>
Regards
Jonathan LewisLAST NEWS : we have relaunched the query in SAS and observed that we have the same context of plan in both cases (by SAS en y TOAD) : ALL_ROWS.
Very strange ...
Last question :
Just to be sure : When you talk about "First Rows plan" : it means that the retrieve data are restricted to the first rows encountered
or
it is just the plan of the query which is in "that context" which means that the engine works so although the whole data are retrieved ....
thanks for your return

Sort by columns once per session

Hi there, I am using apex 3.1 and I have a report generated by a pl/sql function. There are several columns on which the user might sort. Is it possible to reset the sorting preferences when the user logs in? (like: a process running once per session?)
thx in advance
Edited by: 814932 on 23-Nov-2010 08:00

You can use the <tt>apex_util.remove_sort_preferences</tt> method (although it is a bit of a blunt instrument). See the Admin guide for more information on user preferences.
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Hi:
Is this the right column to see what's the name of the program a
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null

Michael,
Use the plsql package dbms_application_info to set this:
dbms_application_info.set_module( 'module_name','action_name' );
or
dbms_application_info.set_action( 'action_name' );
These will set those columns.
You may have to load 'dbmsutil.sql' as SYS. Ask your DBA.
Michael Mou (guest) wrote:
: Hi:
: Is this the right column to see what's the name of the program
a
: user is running? Why most of them are blanks? Can I assign a
: value to this column? What should I do if I want this column to
: show the name of self-developed applications? Thanks.
: MM
null

BLOCKING_SESSION column of v$session in 10g

Hi. all.
http://download.oracle.com/docs/cd/B19306_01/server.102/b14237/dynviews_2088.htm#REFRN30223
what does BLOCKING_SESSION column mean?
For example,
SID Blocking_session
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or
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Dear Yas.
Thanks for your confirmation.
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V_$Session column program too small.

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Hi all,
I would like to know the difference between status and state of a session ?
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fcjunic.

Hi fcjunic,
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hi all,
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on what basis, session is shown as inactive in the status column of v$session..
am connected through toad and execute so many queries, but still my session is shows as inactive ..
can anyone shed some lite on this ?
Kai

Mark,
DB:11.1.0.6
O/S:Win XP Proff
This is the output that I got from V$session which has got one user ,Aman connected and ran a long query which took sufficiently good amount of time to get complete.
SQL> /
STATUS   USERNAME
ACTIVE
ACTIVE
ACTIVE
ACTIVE
ACTIVE
ACTIVE
ACTIVE
ACTIVE
ACTIVE
ACTIVE
ACTIVE
STATUS   USERNAME
ACTIVE
ACTIVE
ACTIVE
ACTIVE
ACTIVE
ACTIVE
ACTIVE   SYS
ACTIVE
ACTIVE
ACTIVE
ACTIVE
STATUS   USERNAME
ACTIVE
INACTIVE AMAN
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SQL> /
STATUS   USERNAME
ACTIVE
ACTIVE
ACTIVE
ACTIVE
ACTIVE
ACTIVE
ACTIVE
ACTIVE
ACTIVE
ACTIVE
ACTIVE
STATUS   USERNAME
ACTIVE
ACTIVE
ACTIVE
ACTIVE
ACTIVE
ACTIVE   SYS
ACTIVE
ACTIVE
ACTIVE
ACTIVE
ACTIVE
STATUS   USERNAME
INACTIVE AMAN
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select status,username,last_call_e from v$session
ERROR at line 1:
ORA-00904: "LAST_CALL_E": invalid identifier
SQL> select status,username,last_call_et from v$session;
STATUS   USERNAME                       LAST_CALL_ET
ACTIVE                                             8
ACTIVE                                          5124
ACTIVE                                          5392
ACTIVE                                          5392
ACTIVE                                          5402
ACTIVE                                          5406
ACTIVE                                          5406
ACTIVE                                          2399
ACTIVE                                          5430
ACTIVE                                          5430
ACTIVE                                          5430
STATUS   USERNAME                       LAST_CALL_ET
ACTIVE                                          5430
ACTIVE                                          5430
ACTIVE                                          5430
ACTIVE                                          5430
ACTIVE                                          5430
ACTIVE                                          5430
ACTIVE   SYS                                       0
ACTIVE                                          5430
ACTIVE                                          5430
ACTIVE                                          5430
ACTIVE                                          5436
STATUS   USERNAME                       LAST_CALL_ET
ACTIVE                                          5436
INACTIVE AMAN                                     36
24 rows selected.
SQL>I guess,you must have noticed too.There is one session which gets added and removed on its own. I am getting 23 rows and than 24 ,the second last one becomes an active session but my session,Aman's,remains inactive only. The last_call_et column is also shown which according to docs,is showing time period of staying inactive. Interstingly, I couldn't make my user's status changed to Active. My best guess is that it might have become active when the call was submitted but after that it has become inactive again.I surely can be wrong but just wanted to share my thought.If you can explain the behaviour in more detail,it will be great.
Regards
Aman....

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Dear Experts,
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12/15/2008 12:36 PM <DIR> ..
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You must be using shared server.
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(oracle 10.2) Access to v$session from pl/sql code

Hello,
I wonder if anybody can help me with the following problem as I have read some previous posts on similar topics but could not come to a solution so far.
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How to change the Program in Oracle Session

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SECONDS_IN_WAIT column of v$session in 10gr2!!

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