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oracle ora-12545 target host or object does not exist

while trying to login into the oracle account , i was unable to login into the system resulting the message “oracle ora-12545 target host or object does not exist” .And i finally solved orac 12545 target host or object not found . How i solved this issue: Actually , orac 12545 target host or object … continue reading

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ORA-01033: ORACLE initialization or shutdown in progress

Yesterday when i tried to login into my application , i could not login into my account . I was unable to login with the following error. But datbase was in open state. ORA-01033: ORACLE initialization or shutdown in progress Actually , while trying to find out the problem , the archive log was full … continue reading

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How to Start Database Control (dbconsole) , Enterprise Manager do not Start

During the installation of the Database Control (Enterprise Manager) the following files are created: 1. Repository Files 2. Configuration Files These files contains the  information about the database, the listener and the hostname in which it is installed. Any changes in these three files after the database installation.If any problem arise then the solution is … continue reading

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Recovering From Missing Data Files in Oracle

This article will brief you  with HOW TO RECOVER a missing datafile using a RMAN disk based backup.. Since every tables are the logical notation of the data in real every record resides in the data file. Now what happens if the data file is corrupt is missing. PLEASE MAKE SURE YOU HAVE VALID BACKUP … continue reading

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Enabling Archive Mode in Oracle 10g

By Default Archiving Mode is disabled in oracle unless you check the Enable Archiving Mode during the database creation Using the dbca command.i.e. $dbca; .Here the $ sign represents not the root user in linux OS. To Enable the Archiving mode follow the following steps , i will go with syntax letter. 1. Login into … continue reading

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Oracle : Oracle 11g Installation Step by Step in Centos/ Linux

 

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Oracle 10g Installation

 

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