Purpose Of Kernel Parameters
Aug 26, 2011what is the purpose of kernel parameter while creating database.
View 1 Replieswhat is the purpose of kernel parameter while creating database.
View 1 Replies*10g Oracle installation on OEL*
How Kernel Parameters values calculated in 10g
kernel.shmall = 2097152
kernel.shmmax = 2147483648
kernel.shmmni = 4096
+# semaphores: semmsl, semmns, semopm, semmni+
kernel.sem = 250 32000 100 128
[code].......
Run the following command to change the current kernel parameters
/sbin/sysctl -p
** "/etc/security/limits.conf" **
* soft nproc 2047
* hard nproc 16384
* soft nofile 1024
* hard nofile 65536
My question I think 32 bit or 64 bit OS calculation will be same only. I want know how it was calculated ?
I believe I have a problem with the ASM Kernel rpm that I downloaded from Oracle OTN
my Linux OS is
[root@UKEDXDTMTDBS01A u01]# uname -r
2.6.18-194.el5
So I downloaded the x3 ASM files required
[root@UKEDXDTMTDBS01A u01]# ls -ltr *.rpm
-rw-r--r-- 1 oracle oinstall 90858 Apr 12 14:18 oracleasm-support-2.1.4-1.el5.x86_64.rpm
-rw-r--r-- 1 oracle oinstall 14176 May 5 10:10 oracleasmlib-2.0.4-1.el5.x86_64.rpm
-rw-r--r-- 1 oracle oinstall 137486 May 5 10:29 oracleasm-2.6.18-194.el5-2.0.5-1.el5.x86_64.rpm
As you can see the install worked fine
rpm -Uvh oracleasm*.rpm
warning: oracleasm-2.6.18-194.el5-2.0.5-1.el5.x86_64.rpm: Header V3 DSA signature: NOKEY, key ID 1e5e0159
warning: oracleasm-support-2.1.4-1.el5.x86_64.rpm: Header V3 DSA signature: NOKEY, key ID b38a8516
Preparing... ########################################### [100%]
[code]...
So therefore it does not show any disks
[root@UKEDXDTMTDBS01A u01]# /usr/sbin/oracleasm listdisks
[root@UKEDXDTMTDBS01A u01]#
Am I doing something wrong -
If a query can be written using where clause, what is the purpose of using joins over where clause?
View 11 Replies View Relatedwhat is the purpose of over and partition by keywords in analytical functions
View 3 Replies View Relatedi want to run this procedure manually for testing purpose
procedure Reject_Doc(itemtype in varchar2,
itemkey in varchar2,
actid in number,
funcmode in varchar2,
resultout out NOCOPY varchar2 )
what are the possible values for the variables itemtype,itemkey, actid,funcmode?
what the purpose of tnsnames file does? Does it need to be on the client workstation and what should be it's correct location?
View 2 Replies View RelatedOracle Version:11.2.0.3/ OEL 6.1
For diagnosing a performance issue related to a batch run, our application teams wants to know all session/system level parameter that affects SQL performance. I can't simply give an output of v$parameter.name and v$parameter.
value as there will lots of parameter not related SQL performance like
diagnostic_destlog_archive_dest_1deferred_segment_creationcontrol_filesbackground_core_dump
I am looking for only those parameters which are relevant to SQL performance, like
optimizer_modestatistics_levelmemory_targetsga_target
How can you use pivot with a parameter? If you attempt to use a parameter then an ORA-500: bind variable not supported is given
Below is a simplified version of the sql to illustrate teh problem.
create table test_pivot
(
ord_no number,
qty number,
loc varchar2(10)
):
insert into test_pivot values (123, 3, 'LOC1');
insert into test_pivot values (123, 2, 'LOC1');
insert into test_pivot values (234, 4, 'LOC1');
insert into test_pivot values (234, 5, 'LOC1');
-- this one is fine
Select * From
(
Select Ord_No, Qty, Loc
From Test_Pivot
Where Ord_No In ('123', '234')
)
Pivot (Sum(Qty) For Ord_No In ('123', '234') )
-- how to use pivot with parameters
Select * From
(
Select Ord_No, Qty, Loc
From Test_Pivot
Where Ord_No In (:Ord1, :Ord2)
)
Pivot (Sum(Qty) For Ord_No In (:Ord1, :Ord2) )
the same query i put below but in oracle.
I'm trying to declare and set parameters in oracle
I'm trying to do something similar as the follow SQL Server Sentence:
------------------------------------------------------
DECLARE
@Year SMALLINT,
@City varchar(255)
SET @Year = 2010
SET @City = ''NY','NJ''
[Code]....
I want to ask that how can I use parameters in forms? I have created 2 parameter pm_rollnum and pm_classname but I don't that how I use it in form that when end user enter its value in these parameter result should be open.
View 6 Replies View RelatedI just upgraded my version of my oracle from 9 to 11.2g.When I tried to execute some queries in PL/SQL i keep getting an
annoying error : "ORA-01843 not a valid month."
I realized that if I execute the following query:alter session set NLS_DATE_LANGUAGE=AMERICAN;before every query that I want to execute, then it's executed fine.
I preformed the next queries:
1. select * from nls_database_parameters;
2. select * from nls_instance_parameters;
3. select * from nls_session_parameters;
and I saw that the fields in the "nls_session_parameters" vieware not derived from "nls_database_parameters" "nls_instance_parameters".
How can I derive the parameters from the instancedatabase view into the session view?I want that the "nls_date_language" parameter will always be 'AMERICAN'.
How to how to get this sql to work?
select a.in_house_ref
from media_item a
where
((&rack is null) or a.in_house_ref in (&rack));
--a.house_media in ('CH127600','BF101042'), example values
I've tried the a.in_house_ref in (:rack) by itself and that doesn't work for the values above and hence changed it to (&rack) and that works. The issue I run into now is that the the paramater can be null, ie., no values need be entered by users and hence I put the is null statement. When I run the full statement above, oracle returns an error, i.e. , ORA-00936: missing expression.
I have excel file which I am reading through plsql procedure using UTL_FILE utilities, one of the column in the excel has multiple values in the same column, I am getting the values into plsql, but when it is coming to where clause its not working.
Example:
in excel the column has : 'ABC','GEH','HGT',LTP'
create or replace procedure abc(temp_col varchar2)
.
....
....
...
SELECT COLA, COLB, COLC
FROM TABLE_TEMP
WHERE TCOL IN temp_col;
This is not working, if the column in excel has one value say ('ABC') then the above sql is working, if it has more than one value its not working.
i have a function which takes in two variables and return a varchar.
ex: Function(var1,var2) return as varchar2.
in the function,i query a table for var1 and var2 and concatenate the result set to return a varchar. But if either var1 or var2 is null,then my query in the function fetches the result set for the other variable.
My question is,how would i pass a null value through the function and handle it in the function.
The function definition in PL/SQL has IN OUT parameter as well as return statement. Using both we can return the values. Basic definition of a function is function can return only one value at a time.
The question is, Can we return a number thru return statement and a char value thru INOUT parameter. Is it possible to return two different values using these?
I need to extract DDL's without storage parameters. if i use the export and import using indexfile or if i try to extract using the DBMS_METADATA.GET_DDL package , in both ways my output is with the storage parameters
eg:
CREATE TABLE "SEPT"
( "DEPTNO" NUMBER(2,0),
"DNAME" VARCHAR2(14),
[Code].....
I am currently studying a Foundation degree in computer software development, and one of my assignment in PL/SQL I am stuck on one of the tasks.
I have to create a procedure where one of the parameters needs to have a default value of one, if no value is entered when the procedure is called. I have trued to use the NVL function which worked when using a anonymous block, but now I have to convert that to a procedure. My problem is I'm getting an error.
The code for the procedure is
CREATE OR REPLACE PROCEDURE add_new_classes
(p_number_of_classes NUMBER := NVL(NULL,1), -- This will enter a default value of 1 if the user does not specify a number
p_course_id classes.course_id%TYPE,
p_period classes.period%TYPE,
p_frequency classes.frequency%TYPE,
[code]....
I then use this to test it
BEGIN
add_new_classes(1002,'first','daily',3002);
END;
and the error I get is
Quote:ORA-06550: line 2, column 4:
PLS-00306: wrong number or types of arguments in call to 'ADD_NEW_CLASSES'
ORA-06550: line 2, column 4:
PL/SQL: Statement ignored
1. BEGIN
2. add_new_classes(1002,'first','daily',3002);
3. END;
When I replace the params manualy with dates in format of:
'27-feb-2011 08:00:00'
I get the real output.
But when I call the function with the TEST button in the PLSQL I don't get any output (Empty table).
Here is the original function (Bad output) and attaching a file with manuly added dates (Good output):
FUNCTION WhatRoomsTaken(dStartTime date, dEndTime date, dEventDate date)
RETURN Genrefcursor IS
Retval Genrefcursor;
BEGIN
open Retval for
[code].....
Why do I need to change in order to get the good output by calling the function with params?
In my task I am trying to pass a timestamp datatype as one of the input parameter to a procedure in the package.But I am not sure how to give data for it while executing and testing it from anonymous block.
CREATE OR REPLACE
PACKAGE body ac
IS
PROCEDURE ac_ex_wbdb_keycats(
In_Sale_Location_Id IN NUMBER,
In_Start_Datatime IN TIMESTAMP,
In_Stop_Datatime IN TIMESTAMP,
v_refcur OUT sys_refcursor)
[code]....
i created one procedure with 4 in parameters and 1 out parameters(return the value) but whenever execute this procedure i got the error i.e pl/sql: Compilation unit analysis terminated.
PLS-00201:identifier T_USER_PLDATA' must be declared.
CREATE OR REPLACE PROCEDURE GET_USER_PLDATA1( V_PROD_LINE_CD IN VARCHAR2,
V_BUS_GROUP_CD IN VARCHAR2,
V_BUS_UNIT_CD IN VARCHAR2,
V_COUNTRY_CD IN VARCHAR2,
V_USER_PLDATA OUT T_USER_PLDATA)[c
[code]....
declare
type ref_cur is ref cursor;
r ref_cur;
enam emp%rowtype;
dno dept.deptno%type;
begin
dbms_output.put_line('The Employee details are');
open r for select deptno from dept;
loop
fetch r into dno;
[code]....
Error at line 1
ORA-06550: line 12, column 28:
PLS-00103: Encountered the symbol "FOR" when expecting one of the following:
. ( % ;
if i need to use ref cursor to send parameters, is it possible? if yes how to use it?
I want to calculate two parameters A and B which are interdependent. Unfortunately, my code is not working correctly:
create table temp_res1 as
select *
from temp_res
model
dimension by (rn)
measures ( 0 as A,
0 as B
[code]....
The correct result should be:
create table temp_res (rn integer, a integer, b integer);
insert into temp_res values(1, 5, 10);
insert into temp_res values(2, 11, 6);
insert into temp_res values(3, 7, 12);
insert into temp_res values(4, 13, 8);
insert into temp_res values(5, 9, 14);
insert into temp_res values(6, 15, 10);
insert into temp_res values(7, 11, 16);
insert into temp_res values(8, 17, 12);
but I get:
create table temp_res (rn integer, a integer, b integer);
insert into temp_res values(1, 5, 10);
insert into temp_res values(2, 11, 6);
insert into temp_res values(3, 1, 12);
insert into temp_res values(4, 1, 2);
insert into temp_res values(5, 1, 2);
insert into te
Database version: 10.2.0.4 Patch 45 on Windows 2003
1. Documentation says to set "_first_spare_parameter" to resolve bug 6904068. What should be the value if we actually see this bug occurring after applying the patch. How can we determine that we need this parameter to be turned on?
2. How can we determine we need to set "_third_spare_parameter"? How can we check if there is a regression on log files?
I want to set both nls_language and nls_date_language, and set them as different languages. fnd_global.set_nls_context() doesn't work. So I think maybe I can use the EXECUTE IMMEDIATE, and add them together into one statement.
View 7 Replies View RelatedI would like to create a procedure which have 3 parameters. suppose in Date_birth, in Dept , out number_of_records
if i pass null value to one of the parameter it should return all values . if a pass value to the parameter it should return as per parameter values
Create or replace Procedure Emp_Test (P_dop in Date,P_Dept in number , P_noof_records out Number,
p_recordset Out Sys_Refcursor) as
Begin
OPEN p_recordset FOR
Select Emp_cd,Emp_name, Date_of_Birth,Dept,Count(emp_Cd) noof_records
From Emp_Master Where Date_of_birth =P_date_of_Birth
and Dept=P_dept ;
End ;
)How do you view the value of the parameter that is being used by instance? show parameter..?
2)How do you get the information of hidden parameters
3)What is the database object that stores information related to various types of db connections over network
4)How do you verify since when the db session is running
5)How do you verify the Originating machine details of the database session
6)How do you verify the name of program that the db session is running
7)What is the naming convenion of Base tables. Where is the information of base tables stored?
8)How are dynamic views created. Whre is the information of dynamic views stored?
I'm on 11.2 DB and need to create an audit table that will be populated by DB triggers of other tables (after Insert,Update and Delete). The triggers will only ever be inserting data into the audit table. I have read that for insert only tables, you should define the 'pctfree' as 0. Is this correct? Do I need to set any other params (like pct_used) for tables only ever being inserted into?
View 2 Replies View RelatedI have 3 questions.
I have 11.2.0.1 database on Windows 2008 R2 SP1.
1) While connecting to the database as sysdba (sqlplus "/as sysdba"), it takes about 12 to 15 seconds what things I need to check/change so that connection will be faster?
2) Also, I have read somewhere that changing the sga/memory parameters connecting to the database. is it true?
3) This is not concerned with above 2 questions. What should be the memory parameters size for a 8 gb database?
What I have is:
Total System Global Area 1068937216 bytes
Fixed Size 2182592 bytes
Variable Size 1027605056 bytes
Database Buffers 33554432 bytes
Redo Buffers 5595136 bytes
i want to update a table passing the parameters and the updating the table according to it
i trired this
create or replace procedure move
(z1 in game.item_id%type,g1 in game.item%type)
as
begin
update game
set
postion= 'l'
where item_id=z1 or item_id=g1;
end move;
/