oracle close log

The impact and operation method of Oracle closing log

With the continuous deepening of enterprise information construction, database management has become a crucial field. Database logging is one of the most basic functions of the database system. It can record all operations in the database, including operations such as additions, deletions, modifications, and queries. It is an indispensable thing in the operation of the database. However, in some cases it may be necessary to turn off database logging.

This article will discuss the impact and operation methods of turning off logging in Oracle database.

Impact of turning off logging

Turning off Oracle database logging may have a certain impact on the performance and recoverability of the system. The main impacts of turning off logging are as follows:

1. Reduced database recovery capabilities: Turning off logging will cause the database to lose tracking information, making database recovery more difficult.
2. Database system performance degradation: Since the logger is an important part of database operation, turning off logging may affect the performance of the system.
3. Reduced data security: Database logging is one of the keys to data security. Turning off logging will make the database more vulnerable to attacks.

As mentioned above, turning off database logging is not a simple decision. Turning off logging should only be considered when necessary. If you do turn off database logging, you must back up all data before turning it off so that it can be restored if needed.

How to turn off logging

The method to turn off logging in Oracle database is relatively simple. You only need to perform the following steps:

1. Use The system administrator user logs in to the Oracle database.

2. Use the following command to turn off the Oracle database log:

   alter database noarchivelog;

3. If you want to reopen logging, you can use Run the following command to turn on:

   alter database archivelog;

It is worth noting that before turning off logging, you must first stop all applications and databases connected to the database. service, otherwise data loss may occur.

Conclusion

Although in some cases, turning off Oracle database logging may be necessary, logging should not be turned off easily unless there is no other feasible solution. System administrators must assess the impact, understand the consequences of turning off logging, and take all necessary steps to ensure data security. If you want to turn off Oracle database logging, you must back up all data before shutting down and restore it if necessary.

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