Questions tagged [oracle-12c]

Oracle Database 12c. Please also tag oracle for search purposes.

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RMAN catalog database

I'm about to create a RMAN catalog database for my setup, what are the general precautions or major pre-requisites as in DB parameters, compatibility,etc that I should take care while creating the ...
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ASM 12c compatibility

Can I use ASM 12c version with database 11g? This link and MOS Doc ID 337737.1 says I cannot use 12c version of ASM with a lower database version. Am I right? Or is it otherwise?
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Oracle 12c Client to 10g Server (OPENQUERY)

Scenario: We currently have a SQL 2008 R2 server (with Oracle 10g Client) using OPENQUERY to return data from an Oracle 10g database. Problem: We would like to upgrade to SQL Server 2014 SP1 (with ...
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687 views

Using Oracle 12c database (SCAN) with Oracle 8 client

I have successfully connected to my 12c database using Oracle 8 client. The connection is based on using the database-scan as host in tnsnames.ora. There are 3 IP addresses reserved in DNS for scan......
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1answer
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Oracle error ORA-65052: statement involves operations with different container scope

I'm a relative newb to Oracle. I have set up an instance of Oracle 12c running on a RHEL 7 VM. I am connecting to the database created during installation through and running some installation scripts....
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How to set Persian calendar,currency,numbers,date and time and text in oracle database?

I have installed oracle database 12c on my laptop. I want to be able to store text,numbers,calendar,currency,... in my local language (Persian) in database tables and also show contents in Persian ...
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1answer
489 views

Oracle selective redo log shipping

We are planing to setup an Oracle 12c RAC with a Logical standby in the DR site. Since data consistency is extremely important, we our planning to setup redo log shipping to be in SYNC mode. Our ...
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2answers
17k views

How do I limit Oracle's memory use?

I would like to use Oracle's automatic memory management, with a limit of around 4GB. (Past experience has shown this to be plenty for my dev PC and that it is easier to get an idea about any ...
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2answers
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What is the privilege for account unlock in Oracle [closed]

I want to understand the privileges better, but I'm not able to find some useful info using Google. I thought that I needed ALTER USER privilege to be able to unlock user and change password. But ...
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ORA-28545 (Net8) error when connecting Oracle 12c on Centos 7 to SQL Server 2014

I have installed Oracle 12c on Centos 7 and I wanted to connect SQL Server 2014 using freeTDS. So, I installed the following: FreeTds. unixODBC. Next, I configured ODBC on the Linux server so that, ...
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2answers
861 views

“Credential retrieval failed” during recovery of an Oracle database

When starting up automatic instance INSTANCE: RMAN-00571: =========================================================== RMAN-00569: =============== ERROR MESSAGE STACK FOLLOWS =============== RMAN-...
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2answers
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“Unable to display page” with Oracle 12c Enterprise Manager Database Express

i'm using redhat 6, installed 12.1.0.2 of oracle and created a database. database (dev12ee1) is a non-container database, there is also an 11g database on the server (dev11ee1) lsnrctl status shows ...
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1answer
7k views

Unable to open/connect to Oracle 12c Enterprise Manager Express [duplicate]

I have a just installed a new single instance installation of Oracle 12c (12.1.0.2.0 on Windows x64) with ASM. The database itself is working OK (can be accessed locally and remotely via port 1521), ...
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1answer
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Logging into Oracle

I am new to Oracle (coming from a SQL Server world). This is going to probably be some simple newbie question. I just did a fresh install of Oracle 12c Express. The install was successful, but now I ...
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Failure to start instance resource on1 node of a 3 node of an Oracle 12c RAC

After adding a 3rd node to our 2 node 12c RAC, one of the existing node is now unable to start the database resource. Extract from crsctl stat res -t: ora.datacdb.db 1 ONLINE ONLINE ...
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3answers
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Oracle 12c client installer error

I'm trying to install Oracle client 12.1.0.2.0 (32-bit) on a completely clean copy of windows Server 2012, and I'm hitting a problem. The installer runs fine until it gets to the final part - the net ...
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1answer
1k views

Startup oracle database 12c manually with SQL*Plus command not when OS loads

I changed oracle instance to manually start from services.msc (service name is "OracleServiceORCL"), Because I want to start it up manually with SQL*Plus commands whenever I want, not with OS load. ...
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A question about oracle upgrade from 12.0.0.1 to 12.0.0.2 using dbua

I found this guide for upgrade. After the upgrade, can I delete safely the old DB product dir /var/oracle/app/oracle/product/12.1.0 ?
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3answers
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Oracle 12c database cannot log in as a local user

I met a problem from Oracle 12C Database, when I try to login to the user account with commandconn test/test, I got prompt of "invalid username/password, logon denied". when I use conn test/test@...
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2answers
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2 Different Oracle DB Version on same server

Is it possible to install and run 2 different oracle version(11g and 12c)software and db on same server? is it possible then how we can? and if not then why? Thanks Rahul Joshi
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Oracle RAC takes forever dropping tables

We are seeing table drops consistently take tens of seconds on our Oracle 12c RAC. It appears to be spending on its time on reliable message waits. Which I think means that it asks the other node to ...
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2answers
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How to create oracle user for more than one version

I have server under RHEL 6.3 installed on that server Oracle 11gr2 and 12c, I want to create user lets say Ahmad but I want this user to be sysdba on both servers, for single server I edit ....
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How to install Oracle DB 12c on Solaris 11.2? [closed]

I downloaded file 1 and file 2 and extracted it in one folder called ORCLDB. When I run ./runInstall as root from terminal it says The user is root. Oracle universal installer cannot continue if the ...
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sql taking < 1 sec to run in sql developer, 37 on the application side

As the title says, we have a big discrepency between a sql query we're running from our java application (jdbc thin client) and the same query run in sql developer. I clear the cache of the query ...
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2answers
761 views

Duplicate data in a table given table name

For a performance testing application we need to have lot more data in our tables than what we have now. How do I duplicate the data in a table. In the process of duplicating I also need to set new ...
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1answer
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dbca cant remove database cleanly

when I ran dbca as administrator under windows server 2008R2 is used to delete the database completely ( database folder, control files, datafies, redo logs, then remove all related windows services ...
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2answers
3k views

Specify NLS-Settings during Oracle installation under Windows

Is there an easy way to specify NLS parameters for the database during the installation? We want to install a new database (environment: Windows). For testing purpose we need NLS settings for ...
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1answer
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Email Column Constraint to Contain '@' character

How do you create an inline constraint for a Email Address Field that requires there be an "@" character? Pretty much I want there to be a restriction to the field so that the data entered must have ...
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3answers
9k views

Oracle 12c Express Enterprise Manager on Centos 6.5 is not reachable

I have Centos 6.5, and installed Oracle 12c. As dbca utility says after configuring new db, EM Express should be available on https://hostname:5500/em In fact, it is not. Neither on localhost nor by ...
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1answer
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What are the Oracle Dataguard Implications of Migrating to a PDB?

If I have an OLTP database with two physical standby instances (one remote) what are the implications of migrating the primary DB to being an Oracle 12c PDB? i.e. Does the process of migrating to ...
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3answers
6k views

How to tell from the OS whether Oracle instance is a standby, assuming no DB access?

One can easily check via SELECT database_role FROM v$database; whether your Oracle database is a primary or standby database. Is it possible to make the same determination without database access, ...
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2answers
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Oracle 12c, can not chose standard edition when install!

i'm trying to install Oracle 12c on Windows 2012 R2 ... I get Enterprise Edition option only! I need to install Standard Edition!
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1answer
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XMLTABLE solution without getting right parenthesis missing error

I am trying to select from an XML type and produce multiple rows. Have searched for my specific scenario/issue with not much success. Environment: Oracle 12c. I have commented out the offending code. ...
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2answers
4k views

How to detect in which schema a procedure is called?

I'm struggling with a problem in Oracle 12.1 regarding to procedures. We are using a data isolation approach based on schemas. We use one schema as PUBLIC and each project has exactly the same ...
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1answer
776 views

How to solve “Servlet error” when using database control in Oracle 12c?

When I want to use Oracle 12c GUI, I receive an error as written below: Servlet error: An exception occurred. The current application deployment descriptors do not allow for including it in ...
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1answer
2k views

Toad for Oracle 64-bit : 1603 - Fatal error during installation [closed]

I'm trying to install Toad for oracle client, my Toad version is 12.1 for 64 bit system, i have succeeded to install oracle client 12c for 64 bit system, but i have stumbled by a problem when ...
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1answer
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Password of the oracle user in oracle linux?

I am trying to install oracle 12c on my virtualbox oracle linux 6.5. I ran the command oracle-rdbms-server-12cR1-preinstall , which created a user oracle . But I can't seem to login to the user cause ...
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1answer
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'ORA-00059: maximum number of files exceeded' on Oracle 12c

I have a test database. Every night a script drops and recreates a number of pluggable databases that are used for our automated test runs. Recently, I have started getting 'ORA-00059: maximum ...
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1answer
116 views

Importing data into Oracle 12 [closed]

I got a set of files from a client which are, as far as I can tell, copies of a database in Oracle 11. Each folder has the following structure: - init<DB>.ora - orapw<DB> - arch - dbf ...
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866 views

Are there any incompatibilities between Oracle 11 and 12?

I have an application which has been validated on an Oracle 11.2 database. A client has asked me whether they can use Oracle 12c instead as that is what their IT department would prefer. Is there an ...
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1answer
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Oracle 12c SYSTEM user locked out

We have a development Oracle 12c database and the SYSTEM user account is locked out for one of the SID's (works fine with another SID). When I try to do a conn SID / as sysdba it keeps connecting me ...
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Oracle 12c, exclude rows wher two columns are both null

Oracle Database 12c Enterprise Edition Release 12.1.0.1.0 - 64bit I am trying to select rows with a non-null value in one of two columns. Data is being selected from a view (MY_VIEW) with both ...
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1answer
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Using Oracle12C Client with Oracle11.g database

I have been using Oracle12c client to connect to an Oracle11g database in a remote server for about one month, it wasn't giving me any problems until this week, when I started getting the error: ...
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1answer
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Login / Password for Oracle Enterprise Manager in VM template?

I want to setup Oracle Enterprise Manager to access our development Oracle databases. I downloaded the following VM template from https://edelivery.oracle.com/EPD/Search/handle_go Oracle VM ...
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1answer
3k views

Oracle TimesTen vs Oracle database in-memory

Oracle has recently announced its latest Oracle database in-memory feature in 12c. Oracle already had an in-memory database TimesTen and now I was wondering as to what the the differences between ...
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0answers
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What is a failsafe way to embed Oracle12c database with a product?

We are planning to embed Oracle12c as the default data source for our application. That means, Oracle12c and our application are going to reside on the same server. Our application runs on 64-bit ...
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1answer
2k views

how to create database(1 CDB and 2 PDB) by dbca silent mode with response file, oracle 12c

I want create a new database with 1 CDB and 2 PDB, so i write response file and use dbca tool with silent mode. But it must Manual input PDBADMIN password through terminal and only create 1 CDB and 0 ...
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1answer
38k views

Linux Error: 111: Connection refused LSNRCTL

I have a problem starting my listener, I am using Centos 6.5 and Oracle 12cR1. Database has been installed successfully. Now my issue is when I start my listener, the following error is shown: ...
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1answer
20k views

[INS-30131]Initial setup required for the execution of installer validations failed. Encountering this error in Fedora 20

While I was installing Oracle 12c database on Fedora 20 I encountered this error which wasted my 2 days. "[INS-30131] Initial setup required for the execution of installer validations failed." In ...
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1answer
2k views

lsnrctl: cannot execute binary file: Exec format error [closed]

When I type lsnrctl from my command prompt the below error message is displayed: oracle@Gaurav:~$ lsnrctl bash: /u01/app/oracle/product/12.1.0/dbhome_1/bin/lsnrctl: cannot execute binary file: Exec ...