Oracle shutdown log

Influence and operation method of Oracle closing log

With the deepening of enterprise information construction, database management has become a vital field. Database logging is one of the most basic functions of the database system, which can record all the operations in the database, including adding, deleting, changing and checking, and is an indispensable thing in the database operation. However, in some cases, it may be necessary to turn off database logging.

This paper will discuss the influence and operation method of closing logging in Oracle database.

Effect of turning off logging

Turning off Oracle database logging may affect the performance and recoverability of the system. The main effects of turning off logging are as follows:

Reduced database recovery ability: Turning off logging will make the database lose its tracking information, making database recovery more difficult. Decline of database system performance: As the logger is an important part of database operation, turning off logging may affect the performance of the system. Reduced data security: Database logging is one of the keys to data security, and 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 if necessary. If you really want to turn off database logging, you must back up all the data before turning it off so that you can restore it if necessary.

How to turn off logging

The method of turning off logging in Oracle database is relatively simple, and only the following steps are needed:

Log in to the Oracle database using the system administrator user. Use the following command to close the Oracle database log:

alter database noarchivelog;

If you want to restart logging, you can use the following command to do so:

alter database archivelog;

It is worth noting that before logging is turned off, all applications and services connected to the database must be stopped, otherwise data will be lost.

conclusion

Although it may be necessary to turn off logging in Oracle database in some cases, 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 measures to ensure the security of data. If you want to turn off Oracle database logging, you must back up all the data before turning it off and restore it if necessary.