I've been an Oracle DBA for almost twenty years. In that time I have worked in various organisations - sometimes as a "permanent" employee (although nothing is permanent these days ) and other times as a contractor. I have been in my current role for the last six months since being made redundant from my last position.
In this organisation we support a lot of Oracle databases on many different servers spanning various networks. There are two DBAs who have been here for several years
However, they are both in the habit of logging in as SYSDBA for everything. They find it amusing that I refuse to do so for daily administration as I know that this is bad practice. Import and exports are even taken as SYS. Whenever I mention that it's bad practice they shrug it off saying that they've been doing it for years with no problems.
So I have been scouring Tahiti and Metalink looking for a definitive document from Oracle that states just why this is such bad practice. I would imagine that an import as SYS could have catastrophic consequences for the data dictionary if you're not careful, but I can't think of much else.
We've all seen Michel's default "just don't do it" message whenever a poster mentions that they have done something as SYS.
When I try to log into my db with a specific user I get this message. Below is from the alert log. I can login as system just fine.
----- Error Stack Dump ----- ORA-00604: error occurred at recursive SQL level 1 ORA-01438: value larger than specified precision allowed for this column ORA-06512: at line 2 Oracle 10g OEL 5.5
A single master schema where many developers are accessing. all share same password.
now i would like to trace all the changes made by each users. so i create a individual users for all and grant permission to access that schema.do i have a possibility of auditing the changes did by each user for that particular schema
I got a call today saying that some users were having a hard time logging on to Oracle using our in-house PowerBuilder-built application. I have Oracle 10.2.0 running on 32-bit Windows 2003. Poked around a little, looking in the dump directories, checking CPU utilization, checking OEM to see if there were any obvious performance issues or blocking issues or whatever - didn't see anything unusual. Logged in with SQL Plus with no problem. Then I checked the audit logs. All we audit is user logons and logoffs. What I was seeing is that a handful of users were showing a logon event with a logoff (action 101) 10 to 15 seconds later. One user in particular was showing this over and over again.
Materialized views are normally used for summarized data access.
CREATE MATERIALIZED VIEW mv_snapshot_A REFRESH FAST START WITH SYSDATE NEXT SYSDATE + 20/1440 WITH PRIMARY KEY AS SELECT * FROM A;
This does not seem to be the case here as the materialized view seems to be just a full select. The overhead of the snapshot logs are concerning for this core table. Can we turn off logging in 10g ? the materialized view is defined as fast refresh/ build immediate .
The main requirement here is to keep the snapshot every 15 minutes so that the users can see the updated information ( the flow of data from one location to other).
User get the location wise count of data and can go further in details like in which location wise system wise data count. As the base table is volatile the materialized view is used so that the moment the user clicks for location wise details the data is static for 15 min and user don't get confused.
We have our own portal page. We are trying to pass username and password so they do not have to log in twice. This worked in version 4.1 but when we put in patch p13331096 to get to version 4.11.00.23 the form stopped working. Users have to log into our portal page an then into APEX. That does not make them happy.
we use Oracle11gR2 on Win2008R2 .By erroneous operation of OracleDB, there was trouble that we could not log in to Application(Oracle Insight) running on Oracle11gR2. I looked up and understand by running the below ALTER DATABASE ADD SUPPLEMENTAL LOG DATA we can find the SQL statement that was executed in the past from SQL_REDO column of V$ LOGMNR_CONTENTS table, undo SQL statement to rollback from SQL_UNDO column of V$ LOGMNR_CONTENTS table. But , we are concerned about the adverse effect of enabling the supplemental log because it is production environment . I heard the contents of the REDO log will increase if we enable supplemental log.
Q1-How much the REDO log would increase roughly if you enable supplemental log ? ( I am concerned about the issue of the capacity of the REDO log and the problem of DB performance . )
Q2-Is it necessary to restart the DB instance to enable supplemental logging after executing the below ?ALTER DATABASE ADD SUPPLEMENTAL LOG DATA.
Q3-Is there any other adverse effect we should care if you enable supplemental log ?
Q4-Logminer is usable if DB is running on no-archive mode ? In my understanding , it is possible if you enable supplemental log and have the REDO logs we would like to analyze.
I am trying to trouleshoot an issue with Oracle and want to see what commands are being sent by by process. By reading the documentation it appears there is client logging to do this but I can not get it to work. I added the following commands to my SQLNET.ORA file but no log file is created:
tnsping.trace_directory = C:appproduct11.2.0client_4 etwork race tnsping.trace_level = admin trace_level_client = user trace_directory_client = C:log log_directory_client = C:log trace_unique_client = on trace_timestamp_client = on
Ths TNSPING works just fine it logs the information I expect. The client logging, however, never creates a file .
we have a database application which is done frequently.in these we load data throught Sql loader, we create an DB instances, we do several DML operation on the database.
now for such task in an application we need to keep an logging track of each task performed in PL/SQl procedure packages.
. I need to configure simple standby database. I have followed this[URL]...-guard-setup-11gr2.php tutorial to do that Problem is that primary db cannot log on to the standby db. Informations privided below
:Primary DB:CentOS 6.4Oracle 11gR2ORACLE_SID=primdb1SQL> SELECT MESSAGE FROM V$DATAGUARD_STATUS; MESSAGE--------------------------------------------------------------------------------ARC0: Archival startedARC1: Archival startedARC2: Archival startedARC1: Becoming the 'no FAL' ARCHARC1: Becoming the 'no SRL' ARCHARC2: Becoming the heartbeat ARCHARC1: Beginning to archive thread 1 sequence 31 (336165-356856)Error 12514 received logging on to the standbyPING[ARC2]: Heartbeat failed to connect to standby 'stbydb1'. Error is 12514.ARC1: Completed archiving thread 1 sequence 31 (336165-
i am trying to install Oracle 10.10.2.0 on Windows Server 2003 standard x64 Edition Service Pack, but when i try to run the installer or open DVD it gives me below error.
"The image file D: is Valid, but is for a machine type other than the current machine."
I was trying to delete the database in the test server. When i was deleting listener was already stopped, i continued deleting using dbca, it shown me some alert that datafiles cant be deleted because system could't find database, since listner was stopped so only service was deleted(the one showing in the windows administrator toolsservicesOracleServiceTEST).
All the datafile parameter files are still there. How can i delete the datafiles and parameter files belongs to that database or how to create the deleted service, so that i will start the listener and do the complete deleting of the database.
I have to migrate production database version 10gR2 on windows 2003 server to oracle 11gR2 on windows 2008 server . So far i have just installed the oracle software on 64bit windows 2008 server. How to move the data or migrate from old server to new server .
after a long time,(i never remember when was the last time i installed 9i)i was asked to install 9i.So, whether i install server or cilent i get this error <attachment>
after i ignore it and finished the installation,The server installation gets abruptly ended for the client i get TNS errors.
I am trying to find the unix process for one of my application in the database but I am unable to view the same. To simulate, I did the following.
1. My database runs on different server. 2. I invoked "sqlplus" from another unix box to login to the database. 3. I found that the process id (ps -ef |grep sqlplus). 4. When I execute the below mentioned query it does not display the process id that I am looking for. But the osuser, username, program and machine details are correct. How can I know the process details from the database?
SELECT SYS.GV_$SESSION.OSUSER, SYS.GV_$SESSION.USERNAME, SYS.GV_$PROCESS.SPID, SYS.GV_$SESSION.MACHINE, SYS.GV_$SESSION.PROGRAM, SYS.GV_$PROCESS.PROGRAM ,SYS.GV_$SESSION.SQL_ID FROM SYS.GV_$PROCESS, SYS.GV_$SESSION WHERE SYS.GV_$PROCESS.ADDR=SYS.GV_$SESSION.PADDR and SYS.GV_$SESSION.USERNAME='TEST' and SYS.GV_$SESSION.MACHINE like '%hostname%'
I have database in single server. I already have ORACLE_SID=stagedb. So i want to create new sid and named as proddb.Is it possible have multiple db in single server? This server not running as RAC. It run as single only.
database administration , we are planning to use amazon cloud database , this database does not allow us to login to server machine , unfortunately amazon don't provide ssh to this machine , in general for doing any of adminstration task on the database will there be need to log into the machine ? we can always log in through toad or any other sql client but we cannot do ssh to server..general can this limitation effect administration ?
I want to install Oracle 11g R2 in windows 2008 64 bit server. How can I know whether my server is ready to install Oracle ie is all components are available in server or any patch is to be applied etc.
I'm trying to connect a oracle client application on the client machine to a remote oracle server on the server machine but i get a connection fail.
On the server machine I configured oracle server in the following way:
Installed oracle server. Created a database "DB_Test" with the database configuration assistant Created a LISTNER with the Oracle NET Manager with the following parameter:
Protocol: TCP/IP HOST: server pc hostname (ENZOVAIO) or server machine address ip (192.168.0.71) in the network lan Port Number: 1521 Created "dbtest" service with the Oracle NET Manager with with the following parameter: Service Name: "dbtest" Protocol: TCP/IP HOST: server pc hostname (ENZOVAIO) or server machine address ip (192.168.0.71) in the network lan Port Number: 1521
All services on the server machine are running and I opened port number (1521) in the router. On the client machine I installed SQL PLUS and SQL Developer.
With SQL Plus as by the official documentation I have entered the following command:
CONNECT username/password@[//]host[:port][/service_name]. In my case is: CONNECT SYSTEM/oracledb@//ENZOVAIO:1521/testdb.
With SQL Developer I have entered the same parameter.
But with both SQLPlus and SQL Developer the connection fails.
We performed image copy of production Oracle server (OS and instances) to a backup server. After a few weeks, we try to restore a latest Oracle database backup from production server to backup server. As we know, Oracle instance must be unique on the network.
Even we log on to backup server and bring up the instance, I think that still point to production instance since all init file, TNSNAMES.ora and listener file are still same. If we restore the database, we will end up bring down the production instance and restore on top of productions. How to change instance name on backup server including TNSNAMES, sqlnet, listener files in order for us to restore Oracle database from production to backup server?
I recently installed Oracle 10g on my windows Xp laptop. It has become considerably slow since then. I want to start the database server only when I need it, and not every time I start my laptop. I looked around in OEM and did found a way.
I have installed oracle 11g Release 11.1.0.1 on windows server 2008.I access this server from a client machine running on winXP through SQL PLUS. I wanted to shutdown and start DB server from this client machine. Accordingly i issued shutdown immediate command from SQLPLUS.
Now when i tried to start the DB with "STARTUP NOMOUNT" command i received error 12514. I understand this error means that the listener received a request to establish connections to a database but since DB services are not up and running, hence the error. So my first question is how do I resolve this error.
Continuing further, i tried to re-connect to the database as sys, and i received another error ORA-01041. So, my second question is why did i receive this error and again how can i resolve it
may be you can point me to relevant reference in Oracle documentation) how can i start and stop oracle from a client machine using SQL interface in CLI mode and windows environment and avoid this error.
