The second and terminal release of Oracle Corporations Oracle 11g database product. 11.2 was released for Linux on September 1st, 2009. New features added include RAC One Node, Improved data compression ratios (up to 20x), Edition Based Redefinition, Recursive Subquery Factoring, Instance Caging, ...

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1answer
99 views

Backing up Oracle home directory while instances are running

Can I take a backup of Oracle home directory (with cp -r) before upgrade while the instances using the home are running or is it required to shutdown instances first? Trace files/alert logs are in ...
2
votes
1answer
1k views

Cannot change serivce name for Oracle

I'm trying to change the service name of an Oracle 11.2.0.3 installation on a Windows 2003 server. During installation the service name was defined with the default domain, but we'd like to get rid ...
2
votes
1answer
428 views

Is there a way to explicitely have a not-null column in a view

If I create a view in Oracle, the column definition's not null characteristic is inherited from the base table: create table tq84_t ( col_1 number, col_2 varchar2(15) not null ); create view ...
2
votes
1answer
2k views

SP2-0750: You may need to set ORACLE_HOME

I am getting following error message when i write sqlplus on command prompt SP2-0750: You may need to set ORACLE_HOME to your Oracle software directory Here are the path details
2
votes
1answer
178 views

BLOBs storage in a dedicated table

I have a database that has several BLOB columns scattered across multiple tables. Since I am a developer and am looking at making application code writing easier, I wanted to turn these columns into ...
2
votes
1answer
1k views

where is oracle session timezone set?

I have a logging table CREATE TABLE EMAIL_LOGGING ( ID NUMBER(9) NOT NULL, SEND_DATE TIMESTAMP(6) DEFAULT LOCALTIMESTAMP NOT NULL, ...
2
votes
1answer
587 views

Oracle: Long delay opening connections

I am getting a very long delay (about 2 minutes) opening initial connections on my 11g2 development server. Sometimes I get ORA-28547: connection to server failed, probable Oracle Net admin error and ...
2
votes
1answer
312 views

Upgrading from 10.2g to 11g by incrementals

I know it's possible to generate a full rman backup in a 10.2g database, move it to another server containing 11g, restore it there and finally do an upgrade. Since I have to do this to a large ...
2
votes
1answer
1k views

Can RMAN duplicate be used to “replace” an existing database?

I have an unused database B, not valuable. I'd like to make a copy of database A, but do not want to go through all the manual steps RMAN requires to set up the auxiliary database. Can I use RMAN ...
2
votes
2answers
10k views

Oracle11.2g post-installation problem on Oracle Linux kernel

[question copied from stackoverflow] After installation of Oracle 11.2g in silent mode on the Oracle Linux kernel, I have the following error: [u01/app/oracle/product/11/bin] $ sqlplus sqlplus ...
2
votes
1answer
241 views

Rman not replacing logs with same name on networked drive

Historically, rman saved logs by replacing files of the same name so that the most recent set was always there, and logs from backup of older than the most recent set simply went away. Rman is ...
2
votes
2answers
3k views

when to use embedded PL/SQL gateway with Oracle APEX?

Oracle Application Express (APEX) requires one of the following three options for an HTTP server: (1) Oracle HTTP Server (with mod_plsql), (2) Oracle Application Express Listener, or (3) an embedded ...
2
votes
1answer
2k views

Oracle DB hanging after upgrade to 11.2.0.3

The database is hanging randomly (with some leniency I would say almost each hour). Top session is: select privilege# from sysauth$ where (grantee#=:1 or grantee#=1) and privilege#>0 or select ...
2
votes
1answer
172 views

May I Convert Non RAC db to an RAC DB and add on a Node?

Currently my work env as 1 node none RAC database 11gR2, we are getting another machine (Linux), so I need to add on this node to our currently env and becoming a RAC db. What is the best way/route to ...
2
votes
1answer
3k views

Oracle Wallet Setup ORA-12578

I am having trouble setting up the Oracle Wallet on a new box connecting to a new database. I have added the following lines to my SQLNET.ORA: SQLNET.WALLET_OVERRIDE = TRUE WALLET_LOCATION = ...
2
votes
1answer
2k views

Best methods for ingesting XML into Oracle 11gR2

I have a large Oracle 11g Instance. I now have a requirement to convert large amounts of XML into records in several related tables. The xml will arrive frequently at irregular intervals. The ...
2
votes
1answer
553 views

How to configure so the Oracle wallet password can be authenticated with a web based Oracle application?

Does anyone know how to configure it so that the Oracle wallet password can be authenticated with a web based Oracle application? I’m trying to make secure LDAP connections with an Oracle web based ...
2
votes
0answers
72 views

Why OEM RMAN backup jobs fail after changing the preferred credentials?

In an Oracle Database 11g Enterprise Edition Release 11.2.0.4.0 - 64bit Production, Running on Oracle Linux 6.5, we configured full RMAN backup schedule using OEM (Oracle Enterprise Manager 11g ...
2
votes
2answers
81 views

SQL query for next occurrence of specific date

I am working on a function for our database that contains contract data. Each contract expires on a certain date, and then each contract has an expiration type that determines what happens after that ...
2
votes
2answers
225 views

Bad bind variable in audit trail trigger in Oracle 11g R2

I have been trying to construct audit trail triggers and procedures in oracle and I am facing a problem with bind variables. Following is the code create or replace trigger trg_audit_trail for insert ...
2
votes
0answers
30 views

Attaching Existing Oracle Home to fresh Windows Install

I have a client who recently was forced to reformat and reinstall Windows Server 2008 R2. Their ORACLE_HOME (Oracle 11g) and all of the data was located on a D: drive that was not reformatted. Can I ...
2
votes
2answers
382 views

FileWatcher Troubleshooting Options

I have setup a Credential/Procedure/Program/File Watcher/Job to monitor a folder for new files, but it is not working. I am trying to figure out what I can check to troubleshoot why this isn't ...
2
votes
1answer
109 views

What's the most appropriate NLS_SORT parameter to cover all/most European languages?

I'm developing an Oracle 11g-based application which is likely to be used by clients in many different countries (mostly European). I want the program to change its NLS_SORT so that it's case ...
2
votes
1answer
395 views

Unable to start Oracle Database Server : Get an error as I try to start it

I just installed Oracle Database Express Edition 11g Release 2 for windows.It created a short cut icon on the desktop : but as I click this icon I see this dialog box : What is it ? How do I ...
2
votes
0answers
993 views

Oracle high Paging Faults

What are the reasons that lead to terrible high Paging faults. The following is the topas information and background about the Environment. OS: AIX 6.1 Softwares: Oracle 11gR2 Paging Space:30720 ...
2
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0answers
569 views

Where can I find a syntax reference for Oracle SQL Developer's “Generate DB Doc” function?

Oracle SQL Developer (I'm using v3.2) has a feature called "DB Doc", which generates documentation for database objects. I mostly want to use it to generate documentation for my stored procedures, ...
2
votes
1answer
1k views

Oracle 10gR2 to 11gR2 upgrade - performance hit [closed]

We've recently upgraded from Oracle 10gR2 (10.2.0.4 ) to 11gR2 (11.2.0.3) and we are noticing a significant hit in performance although execution plans are the same for the offended queries before and ...
2
votes
0answers
1k views

ORA-01017: invalid username/password; logon denied

I've come across the abnormal situation, and can't understand what happens. I am connecting databases using PL/SQL Developer 8.0.4.1514(I've also tried v7,but same) . Sometimes(When I am trying to ...
2
votes
1answer
337 views

Table Statistics Affect Index Only Query?

We have a query that was getting poor performance. The root of the problem could be reproduced using a simple query accessing only one index to retrieve one column (the indexed column) from eight ...
2
votes
0answers
360 views

Isssue with Database Links converting OEM Job to DBMS_Scheduler Job

We had an OEM job that would run a PL/SQL block using a particular database users credentials. The credentials are the same for two different databases, so there was no problem for the block to use a ...
2
votes
2answers
99 views

Why can't I drop this Oracle datafile - even though it seems empty?

This system is Oracle 11.2.0.3.0, using ASM. We had an issue where there seemed to be a corruption issue of some kind - every time a row tried to get inserted into the table, we'd get the following: ...
1
vote
2answers
149 views

Oracle becomes too slow after system crash [closed]

I am using Oracle 11.2 as a database for my application. For this purpose I should import my data (around 100m records) to this database. For this purpose I used SQL Developer. Unfortunately at the ...
1
vote
2answers
779 views

Factoring out subselect (with clause) ends in ORA-00904

I am trying fo factor a repetitive subquery with with but getting ORA-00904 over and over again. This is my base query which works quite well: select tka.id, tka.name, txt.text as langname, ...
1
vote
2answers
5k views

How high can I set undo retention on Oracle 11gR2

Is it viable to set a very high undo retention, as to allow flashback queries several weeks back in time? Naturally, enough space must be available in the undo tablespaces to contain the amount of ...
1
vote
1answer
189 views

Why am I not seeing any benefits of parallel execution when parallel clause is used?

I have these two methods of creating a table and populating with rows. The first one uses a parallel (degree 3) clause, so I expected the inserts to be much faster. But I timed the time taken for a) ...
1
vote
1answer
1k views

can I replace nulls in a PIVOT with zeroes?

I am using the PIVOT function in Oracle and am curious if I can replace the null values with zeroes? I know I can wrap the entire query in another SELECT and then use COALESCE on the values, but I am ...
1
vote
1answer
506 views

Should a table be partitioned before or after an INSERT?

I have a fairly simple question that is proving hard to search for. I need to create a table that will be partitioned and into which (lots of) data will be loaded. Is it more efficient to create the ...
1
vote
2answers
2k views

Sum values from two tables ORACLE

I want to use two values, in two different tables, to be used as a total in a third table. For instance: table accommodation and flight Add value from acc_price with value from flight_price Add ...
1
vote
1answer
48 views

Redundant transpose. Case is not enough to solve my problem

I have db problem in transposing rows to columns. I am half way through the result but getting redundant data. My table: EMP_ID EMP_NAME SAL_PAID 01 ABC JAN 01 ABC FEB 01 ...
1
vote
2answers
447 views

oracle tablespace extending

While under massive write (insert and create table as) load, when Oracle RAC needs to extend tablespace, all write activity gets blocked for however long it takes it to finish extending (tens of ...
1
vote
1answer
179 views

INDEX Creation Advice Oracle

I have a table that has time data of 2 billion records obtained from the clients. The data has two main columns, date and entity_id. The attributes date, and entity_id would make a unique pair. ...
1
vote
1answer
5k views

How do I find out the “redo log file max size” in Oracle 11R2

I'm working with Oracle 11R2 and I want to see the max size of my redo log files (I didn't install Oracle so I'm not aware of the configuration). I have searched the Internet but all I have found ...
1
vote
1answer
68 views

Verify if I can use a given directory

Admin creates an Oracle directory: CREATE OR REPLACE DIRECTORY EXAMPLE AS '\\server\share\test'; GRANT READ, WRITE ON DIRECTORY EXAMPLE TO JOHN; Admin can test whether the directory exists: SELECT ...
1
vote
1answer
601 views

Oracle Client vs Oracle Instant Client on Linux!

to have the following setup on a Linux box: SQLPlus client library (oci.dll)!!!! ORACLE_HOME is set for users is Oracle Instant Client enough or I need to have the Oracle Client installed on the ...
1
vote
1answer
677 views

Repartition Primary Key Index online in Oracle

I have an 24x7 OLTP (11gR2) application that endures heavy inserts on particular tables, traffic has increased to the point where we are getting heavy index contention. We use sequences for the ...
1
vote
3answers
54 views

Remove ORA-01100:DATABASE ALREADY MOUNTED

I am using Oracle 11g and there is a database create during installation name "xyz" and user "xyz".Now i created a user 'abc' and gave following permission to abc. "CREATE SESSION, ALTER SESSION, ...
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vote
2answers
61 views

Oracle result cache behaviour

Oracle by default caching the query results and function results(Buffer cache). I have noticed this with AutoTrace utility, where the physical reads are huge on first execution, but from next ...
1
vote
1answer
1k views

SHA-256 hashing in oracle 11g

How can i encrypt or hash a password inside a trigger using sha-256 so that i can store the hashed value in another table using that trigger? Also how can I decrypt it??
1
vote
1answer
564 views

Delete shared memory segments left over by an Oracle instance

We're using Oracle Enterprise 11rR2 running on Solaris. How can I delete/remove allocated shared memory segments using ipcrm? I'm getting this error: ORA-01041: internal error. hostdef extension ...
1
vote
2answers
202 views

Expand sparse table with self outer join on distinct values

I have this: g1 | g2 | x ---------+-----------+----- New York | Monday | 210 New York | Tuesday | 258 Chicago | Monday | 30 Chicago | Wednesday | 25 LA | Thursday | 40 ...