A tablespace in Oracle database is primarily a logical storage unit that has at least one data file. This data file contains all the tables, indexes, for a DBA to create databases in Oracle. A tablespace serves as a bridge between the file system in which the index or information is stored, and the databases.
Corruption in the tablespace can occur for various reasons, such as improper system / database shutdown, virusInfection, the media block corruption, and the operating system damage. In such cases of corruption tablespace, the database records in the database and is unmountable overcome inaccessible to as tablespace corruption scenarios in case of no "Hot Backup" or "standby database available", the database administrator on an opt Oracle Database Recovery for effective third-party application.
To illustrate the above case,check records of the work on a large database with more than one lac. You run the database to change a query in a particular field. When was the execution of the query in progress, however, the system shut down due to power outage. Well, if you try to mount the database, it is not mount. In addition, lac, all records of a database stored in the reach. In addition, you will meet an error when trying to Mountit.
Cause
The main reason for unmountability your data corruption, improper system shutdown.
Resolution
To overcome the above tablespace corruption issues and the records access, you need the following steps:
Make a backup updates the database.
In the case of poor or no backup exists, you must restore the tablespace using an effective third-party Oracle DatabaseRecovery application.
An Oracle database recovery utility employs advanced techniques to restore the database logical to repair damaged database and again almost all the database components, tables, tablespaces, triggers, and more. The software is completely read only in nature and leads recovery without any changes or overwritten. The user interface of this software makes the program easy to understand and operate.
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