Server Administration :: DBname Changed From Pfile?
Apr 17, 2013
I am having few confusion on dbname, sid & tnsname.
rman target sys/oracle@suman auxiliary /
In the above command, "suman" is SID or Tnsname or dbname?
Bimistake, in my test database, i tried to change the DBname to suman from sumandb in pfile. After changing, i tried to startup database in nomount pfile but oracle through error that, unable to locate control file. Then, i remove the control files and tried to start database with nomount. Oracle through error about the control file.
This database, i had installed through DBCA. I want to know, where are all places where DBname reside?
Can i start database through pfile even if it is created through DBCA?
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Jan 22, 2013
I have issued to create pfile from spfile. When I run the create command it is done successfully but in my pfile content has only one parameter of *.SPfile='D:apporacleproduct11.2.0dbhome_1databaseSPFILEORCLE1.ORA'
I want to have a normal pfile with many parameters in the pfile that it can be changed.
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Jun 26, 2011
When creating manually a pfile from an spfile
create pfile ='mypfile.ora' from spfile;
I noticed that many parameters are missing in the generated pfile, there are just some 20 parameters instead of 250 ! where are the others ?
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Jun 25, 2011
whenever i tried to create spfile from pfile i got this error...oracle not available and shared memory realme does not exist.
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Sep 29, 2011
I have a database started using pfile and spfile parameter shows NULL from command prompt as below:
******************************************************************
Connected to:
Oracle Database 11g Enterprise Edition Release 11.2.0.2.0 - 64bit Production
With the Partitioning, OLAP and Data Mining options
SQL> show parameter spfile
NAME TYPE VALUE
------------------------------------ ----------- ------------------------------
spfile string
SQL>
*****************************************************************
Now when I want to change/switch database to start using SPFILE, can I do it with out restarting (shutdown and startup)the database.
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Feb 8, 2011
I successfully created a DB manually with PFILE.
I want the DB to startup with SPFILE at next login.So i fired the below command.
CREATE SPFILE='path/SPFILEPRAGAT.ORA' FROM PFILE='path/file.ora'.
But it shows the error as below:
ORA-01078: failure in processing system parameters
ORA-27040: file create error, unable to create file
OSD-04002: unable to open file
O/S-Error: (os 123) The filename, directory name,or volume label syntax is incorrect.
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Apr 29, 2012
which initializaion parameter cant be change after creating the database?
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Mar 21, 2012
I got query to investigate, how table owner is changed.
SQL> conn test/test
Connected.
SQL> create table guri(name varchar2(9));
Table created.
SQL> select table_name from user_tables;
no rows selected
SQL> conn /as sysdba
Connected.
SQL> select owner,object_name,object_type from dba_objects where object_name = 'GURI';
OWNER OBJECT_NAME OBJECT_TYPE
---------- ----------- ------------
CISREPLICA GURI TABLE
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Feb 18, 2010
Here is an article to show a case when SYS password is changed by SYSTEM:
[URL]....
This behavior is not working on all the environments.
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Aug 29, 2013
Quote:Oracle collects new statistics when enough of the data (about 10%) has changed.I read the above statement in the oracle documentation that Oracle collects new statistics when enough of the data (about 10%) has changed every day during 10 pm to 6am .
But still i see some object statistics are stale and empty.Do i need to collect statistics for these objects manually ? and would like to know why these objects statistics were not collected during maintenance window ?
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Jul 13, 2010
We are planning to change the dbname from appr to apdr. Its a DR (Standby Database).
a. NID option will work for this? - DB in mount state (Standby db)
b. Is that possible to change the Instance name also?
c. Any Prerequsities and postrequirments for this change? (ie,Data Broker, communication with Primary and Standby etc?
Oracle 10g, OS - Sun Solaris
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Nov 12, 2012
Procedures, triggers and other object with character changed.
Every character was replaced by ã? the content of procedures and other objects after importing a schema for production approval.
Example:
EXCEPTION
WHEN OTHERS THEN
p_msgerro := p_msgerro ||
' Erro na selec?o da Unidade Administrativa. ' ||
The character (?) deveria ser (ã)
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Apr 2, 2013
My job is running at 2 am and that time no application user is connected. Even though, my exp utility shows error on 3 tables (2 are temp tables), everyday. But when expdp is running without error, which was scheduled at 4 am.
Below are the error -
Connected to: Oracle Database 10g Enterprise Edition Release 10.2.0.4.0 - 64bit Production
With the Partitioning, OLAP, Data Mining and Real Application Testing options Export done in WE8MSWIN1252 character set and AL16UTF16 NCHAR character set
. . exporting table DW_TEST_MOTOR
EXP-00056: ORACLE error 1466 encountered
ORA-01466: unable to read data - table definition has changed
[Code].....
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Nov 5, 2010
I want to change dbname,sid,data/control file locations in operational dataguard setup i plan to follow as below
1)shutdown primary and standby (stop managed recovery)
2)change db name in init.ora of primary and standby change database name control file location
3)create control file for primary from trace(script) make changes for db name and file locations
4)mount and open primary database
5)create standby control file
6) transfer standby control file to standby
7) mount stand by database and start manage recovery
If this steps will error free do i need to follow any thing additional to this or what is other best way for this or its not possible at all
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Jan 28, 2013
Suppose my Prod Database is up and accidentally my pfile deleted. what will happen to my prod database whether it wil fail the instance or any error . as per concept that i know pfile accessed when we nomount the database for initialization of database.(11g)
in case of SPFILE
Suppose my spfile deleted and previously my database was in up condition. what will happen to my instance if i am working in a OLTP/DSS environment.(i dont have backup also how to recover and work in 11g if instance failed)
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Jun 5, 2010
what is missing in this pfile that would cause enterprise manager not to appear ?
In the Oracle Database 10g: Administration Workshop II The chapter 8 excercise calls for the database to be started using the pfile init_sgalab.ora . The purpose of this I suppose is to simulate a memory error.
When I get to the part where I need to use OEM to fix the problem, OEM does not come up. The contents of init_sgalab.ora are :
--------------------------------------------
background_dump_dest='/u01/app/oracle/admin/orcl/bdump'
compatible='10.2.0.1.0'
control_files='/u01/app/oracle/oradata/orcl/control01.ctl','/u01/app/oracle/oradata/orcl/control02.ctl','/u01/app/oracle/oradata/orcl /control03.ctl'
core_dump_dest='/u01/app/oracle/admin/orcl/cdump'
db_block_size=8192
[code].......
I am not sure what is missing in this file to be able to bring up OEM.
Also, I looked at the logs and this is the only error message I found that might be relevant in
/u01/app/oracle/product/10.2.0/db_1/jhlinux.home.com_orcl/sysman/log/emoms.log
2010-06-04 23:33:59,809 [HttpRequestHandler-8546123] ERROR eml.OMSHandshake processFailure.619 - OMSHandshake failed.(AGENT URL = http://jhlinux.home.com:3938/emd/main)(ERROR = INTERNAL_ERROR)
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Nov 24, 2012
If I have to create a database on server which has already 5 databases running , how will I set the memory (pga,sga) values . AFAIK it depends on o/s is linux and database version is 10g and 11g .
1)free avaialble memory on server .
2)kernel parameters .
what else has to be considering while initialize memory parameters .
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Apr 1, 2011
I have database A (Working in Live environment) and Database B copy of Database (Not live) I have Restored whole database (A) RMAN backup file on Database (B) Previous week now i don't want to change anything in any schema and want to import only updated and new records in the table in Database B
There are around 20 schema If for example i have everything in new database B all required database objects like Procedure,functions, packages with indexes in all tables and data in tables, i just want to add new data and updated data.
IF i do following in source database
expdp directory=dpump_dir dumpfile=table_data.dmp content=data_only schemas=ACCMAIN,HRMAIN,..... include=TABLE
AND Import in destination database B, will it add new data and update existing one in table and not touch the table structure and indexes.
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Nov 23, 2011
provide me the query to check our database is running using spfile or running using pfile.
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Jul 12, 2012
I am using oracle 10g. Is there any mechanism to / parameter to enable or disable archive log mode? can I enable arching directly from pfile without touching the startup process?
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May 17, 2010
let's say a parameter changed in the database ex: alter system set retention_target= 1500; and i want to know what was the old value before it has been changed ,
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Jun 10, 2011
I've got table rep184_mediate with columns
mydate (it should be changed [mydate + 1 day] when copying) and other columns (should be copied as is).
How do I perform this without writing name of each column?
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Jul 21, 2011
when we decribe one table structure, it shows the column name as below:
DUKEDMTS03DB01:SYS@TODS1> desc uet_rep.ECM_MAINTENANCE
Name Null? Type
----------------------------------------------------- -------- ------------------------------------
C1 NOT NULL VARCHAR2(15)
C2 VARCHAR2(254)
C3 NOT NULL NUMBER(15)
C4 VARCHAR2(254)
C5 NOT NULL VARCHAR2(254)
C6 NOT NULL NUMBER(15)
C7 NOT NULL NUMBER(15)
C8 NOT NULL VARCHAR2(254)
[Code]...
But, till yday it was showing the orignal column name..
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Apr 4, 2012
I had follwoing function
Create Or Replace Function Fin_Prd(V_Dte In Date) Return Number Is
V_Fin_Str Number;
Begin
[Code].....
The above function was running well. Today i have made some change as under
Create Or Replace Function Fin_Prd(V_Dte In Date,V_Rtn_Flg In Number Default 0) Return Number Is
V_Fin_Str Number;
[Code]....
Above function is created and working well when i use it in query in sql prompt or Toad. But problem is this that all function which used this are invalid and when i run report whose query use FIN_PRD then error is "Ora-04062. Timestamp of Fin_Prd has been changed".
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Aug 29, 2012
I learned that Oracle uses supplemental logging mechanısm to add the changed rows to redo log files and identify the changed rows on target replication database? Is that mechanism mandatory to handle the replication of data between updated and back up databases?
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May 30, 2013
I have following data
WITH t AS
(
select 1 rn, 'A' val from dual UNION ALL
select 2 rn, 'A' val from dual UNION ALL
select 3 rn, 'B' val from dual UNION ALL
[Code]....
I need to calculate a new column "orderedRn" as
Rn Val OrderedRn
------------
1 A 1
2 A 1
3 B 2
4 C 3
5 C 3
6 C 3
7 A 4
8 A 4
9 B 5
10 B 5
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Nov 29, 2010
i'm a student currently learning database administration security.
I need to create a tablespace for administration of database but i don't know what datafile settings are best suited for admin usage.
I have attached the schema that was given to me for this assignment.
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Jun 21, 2012
a table structure is modified every now and then because of which the few packages get uncompiled. is there any way to monitor which user has changed table structure.
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Feb 20, 2012
My form has to go into two different environment in which the one column name of a table is different. datatype is same.
I would like to change the database column name of the item in the form for that block at run time.
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Nov 10, 2010
Is there a way to see who or when password was changed for SYS or SYSTEM account?
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