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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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 ...
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704 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 ...
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51 views

Stop NLS settings in init.ora getting overridden by environment variable

We have a databases server that is used for development which has hundreds of database instances for different branches/builds of our application. And we needed an special instance that has ...
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329 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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68 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 ...
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2k 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??
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685 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 ...
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2answers
252 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 ...
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250 views

need to use PLSQL to insert distinct rows

I need to take some data from Table A, use some logic, and then insert one or more rows into Table B. I have a PLSQL block that brings in data from Table A with a cursor, performs all the logic ...
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451 views

Strange behaviour of a query with order by and rownum on Oracle's Exadata server

I am executing the following query on two different database servers: SELECT start_date, end_date, resort_id FROM employee_activity WHERE employee_id = 27 AND start_date < ...
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284 views

Count events on “user based” sliding window

So, if I wanted to know how many events a certain user bought in certain timeframe windows. I will use 7 for the example, but the query should accept this number of days as a parameter, which will be ...
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354 views

Change a partitioned global non-unique index that is the primary key to a non-partitioned unique index

One of the largest tables in our system has its primary key setup as a globally ranged partitioned (in huge, useless, multi-billion value ranges) non-unique index. Its values are just a sequence ...
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826 views

Why Oracle 11g installs in folder C:\app\<name_of_user>

Just curious, now Oracle 11g installs by default in folder C:\app\ Why? Before, Oracle was installed by default in folder C:\oracle... Why now is created "app" folder?
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How to make stored procedure with outputs OUT sys_refcursor, OUT varchar2, and OUT number, then use in c#.net app

What is the syntax for a stored procedure that outputs a refcursor, a varchar2, and a number? I would like to output all three in the result, for the purpose of displaying count, and a message which ...
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10k views

Oracle DBCA utility: “Listener is not up or database service is not registered with it”

I'm a software engineer with some experience on SQL Server but a newbie on Oracle. I'm attempting to run dbca on a remote linux machine to reconfigure a database that was initially configured to idle ...
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1k views

Oracle backup with RMAN Options?

I'm trying to learn RMAN but getting confused everytime I read Oracle docs! Can someone help me what are the differences and when to use the following? BACKUP DATABASE PLUS ARCHIVELOG DELETE INPUT ...
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3k views

Error calling stored procedure from trigger in Oracle Database 11g

I'm trying to create a trigger that calls some Java code whenever a table is inserted/updated. I'm aware of possible performance issues, I don't need advice that I should not do this; I just need to ...
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3k views

Installing Oracle 11g on Ubuntu 11.10

Does anyone know to how to install Oracle 11g on Ubuntu 11.10?
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9k views

Where all can the /*+ PARALLEL */ hint be used?

It works with SELECT and UPDATE statements. Are there some more statements with which it works? I was able to use it with create, but am not sure if the hint was actually considered. SQL> create ...
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70 views

Oracle error 12154 while importing DMP file

My Setup I'm running Windows 7 64-bit, using Oracle DB 11g R2 for Windows 64-bit. I have Oracle SQL Developer Release 3.0 (4.0.2.15.21) as the GUI for my database. Question I followed the ...
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87 views

Oracle Patching & Database Upgrade - Which Order

I have an Oracle instance running 11.2.0.2.0: SQL> select * from v$version; BANNER -------------------------------------------------------------------------------- Oracle Database 11g Release ...
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97 views

Inner Join Performance

This is my first question on this forum, so be patient... My question is about the most efficient way to build a query on the following table: create table OpenTrades( AccountNumber number, ...
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1answer
100 views

Object changed during datapump

If some object is being changed when data pump is run how will that object go into datapump file?
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236 views

Oracle 11gR2 + RedHat 6.5 cannot start sqlplus

I cannot start sqlplus I've read everything I found, tried everything and still I am getting "command not found" I have a user oracle, I did export ORACLE_HOME=/u01/app/oracle/product/11.2.0/db_1 ...
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214 views

Field Level Auditing in Oracle 11g R2

I want to enable auditing on some column in a table. I have tested the SYS, Schema and Table level auditing. Guide me or refer me some document to enable auditing on column level.
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279 views

Oracle 11g database structural change doesn't autobackup controlfile/spfile

I have configured controlfile autobackup: CONFIGURE CONTROLFILE AUTOBACKUP ON; CONFIGURE CONTROLFILE AUTOBACKUP FORMAT FOR DEVICE TYPE DISK TO '/u02/backup/%F'; Then added a test tablesapce into ...
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1k views

Is it possible to query value of SQLNET.EXPIRE_TIME parameter?

Can somebody advice whether it is possible to query for current value of SQLNET.EXPIRE_TIME parameter in Oracle 11 DB? Should select * from v$parameter return value of SQLNET.EXPIRE_TIME (if it ...
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2k views

Unable to connect to Amazon RDS instance [closed]

I recently created an oracle instance on Amazon RDS. Unfortunately, I'm not able to connect to the instance using Oracle SQL Developer. The (relevant) information I have from Amazon; Endpoint - The ...
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2answers
3k views

How to set Proxy Settings when installing Oracle 11g on Windows 7 Ultimate Edition?

I have downloaded the file - "win32_11gR2_database_1of2.zip" from oracle site. While installing Oracle 11g, I find this window in the first place: What to do? What values should I put on the ...
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2k views

Oracle RAC with single node Data Guard physical standby

Best practices for Oracle 11gR2 Data Guard implies that the primary and standby databases should have the same layout, eg. RAC to RAC. What special considerations would one need to take into account ...
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1k views

Rule of thumb: AUTOALLOCATE or UNIFORM size for tablespaces

Is there a rule of thumb for creating a tablespace with extent management AUTOALLOCATE or UNIFORM? If the latter applies, how to estimate a reasonable extent size? Even more, what should apply for ...
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302 views

Error creating linked database to oracle

CREATE DATABASE LINK myLINK CONNECT TO username IDENTIFIED BY password USING 'PROD'; OPT= (DESCRIPTION = (ADDRESS_LIST = (ADDRESS = (PROTOCOL = TCP)(HOST = 192.6.1.5)(PORT = 1521)) ) ...
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2answers
1k views

how to verify that next sequence value can be used as a new primary key

I have many tables with a trigger attached like this BEFORE INSERT ON BRULES ...snip... if inserting and :new.ID is NULL then SELECT BRULES_SEQ.nextval into :new.ID FROM DUAL; end if; Due to ...
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479 views

Oracle 11gR2 - Limits on Materialised View replication between databases

We are about to deploy a 3rd party product running on Oracle 11gR2. The product allows very generic text searches. We'd like to mitigate the performance impact of the searches. Our current design is ...
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88 views

Connected to an idle instance; trouble creating DB

I tried to connect to my database and got Connected to an idle instance: C:\>sqlplus / as sysdba SQL*Plus: Release 11.2.0.2.0 Production on Mon Sep 22 19:07:34 2014 Copyright (c) 1982, 2010, ...
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22 views

Run stored procedures from specific package/with specific tag at lower priority

I have this requirement to run "Maintainance Jobs" for a web application. These jobs will just call a stored procedure from a set of specific packages. Running these jobs can consume quite a bit of ...
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47 views

Oracle 11g varchar2 datatype with date and time as YYYY/MM/DD-HH24:MI:SS:FF3

I am working with a column 'LastUPDATE' in a database that is datatype of varchar2. This column is listed as YYYY/MM/DD-HH24:MI:SS:FF3 format. Example: '2012/09/06-21:17:30:019' My first issue is ...
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114 views

On reboot listeners don't start but restarting the service after will start them

when I reboot ubuntu the listener service comes up but it doesn't seem to have any listeners lsnrctl status LSNRCTL for Linux: Version 11.2.0.2.0 - Production on 24-JUL-2014 15:34:43 Copyright (c) ...
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2k views

Error ORA-12560 when trying to connect Windows SQL*Plus client to Oracle 11g Linux server

I installed 11g on Centos VM on my mac.I have everything up and working on server.I have included following command I ran on cenos. $lsnrctl status LSNRCTL for Linux: Version 11.2.0.1.0 - Production ...
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408 views

First query running in PL/SQL Developer results the error

When I run first query in PL/SQL Developer I got the error: Dynamic Performance Tables not accessible, Automatic Statistics disabled for this session You can disable statistics in the preference ...
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772 views

Oracle Automatic Memory Management - SGA_MAX_SIZE

When using Automatic Memory Management, what value should SGA_MAX_SIZE be? Should it be 0? These are my current settings, and I'm unsure whether to leave SGA_MAX_SIZE or set it to 0. ...
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61 views

Does hard-coding schema names in procedure calls for Oracle jobs have any performance impact?

A database application I'm working with uses Oracle scheduled jobs to perform certain tasks. The DBA insists that hard-coding the schema name in the procedures that organise these jobs improves ...
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436 views

How To Export-Import Database in Oracle 11g(Application Express Edition)?

I am beginner in Oracle 11g. I have created a database in oracle 11g(Application Express). I want to export this database with all data(whole workspace) and import this to another computer where I ...
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1k views

Check only prerequisites when running runInstaller in silent mode

I want to check just prerequisites and generate a log without installing Oracle database. When I run the following command: ./runInstaller -silentvalidate -responseFile ...
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149 views

ORA-12541 error while connecting to oracle express edition 11g

My oracle express edition was working some months earlier. I dont know what i changed in the system, now I could not connect to it. I tried logging in from sqlplus as sysdba and altered the accounts ...
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86 views

How can I delete rows in an oracle table from xml input parameter?

> CREATE OR REPLACE PROCEDURE PRC_OPEN_PERIOD > ( InputXml in VARCHAR2,Tmode in varchar2,pOUT OUT number ) > IS > v_count NUMBER(38) := 1; > v_inner NUMBER(38) := ...
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629 views

How to prevent scheduler jobs from running at instance startup

I'm currently testing Oracle 11g restore procedures from RMAN backups. I can restore instances to another host, but problem I'm having is that as soon as I open the restored instance, scheduler jobs ...
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53 views

can I quickly create tables for each partition?

I have a table with two partitions and I would like to create two tables, one from each partition. Is there a quick way to do this (a la partition exchanges) instead of a create table as select ...
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326 views

Oracle RMAN substituting variables

I'm playing around with the USING clause in RMAN, but cannot seem to get it to work. Here is my RMAN command: rman target username/password @${RMAN_DIR}/backup.rman using "db1" When I run that ...
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291 views

ORACLE file I/O withouth explicit flushing on 10g and 11g

what happens, if I open a file (foo := utl_file.fopen(... ), write multiple times to a file ( utl_file.put_line (foo,bar) ) and close it ( utl_file.fclose(foo) ) without any flushing? Is there a ...