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HomeDatabaseOracleHow to set timeout in Oracle
How to set timeout in OracleApr 04, 2023 pm 01:59 PM

Oracle is a widely used relational database management system, which can make a series of settings according to user needs to meet their business needs. For some applications that require large amounts of data processing, timeout settings are particularly important. This article will introduce how to set the timeout in Oracle.

  1. The meaning of timeout time

The timeout time refers to the maximum time to wait for an operation to complete. When the operation exceeds this time, the system will report a timeout error or force the operation to stop.

  1. Reason for setting timeout period

Why do some applications need to set timeout period? The reason is simple, because some operations take a lot of time to complete. The timeout setting can prevent the program from crashing or getting stuck due to long waiting, and it can also improve the efficiency of data processing.

  1. How to set the timeout in Oracle

In Oracle, setting the timeout is not very simple and requires operating database system-level parameters. The following is the specific setting method:

First you need to log in to the database through tools such as sqlplus

1) Query the default value of the current session timeout

SHOW PARAMEter idle_time;

2) Set the session idle timeout The value of time

ALTER PROFILE DEFAULT LIMIT idle_time 1800;

The above command sets the session timeout to 30 minutes, which is 1800 seconds. It is worth noting that this operation is a modification to the default configuration file, and existing users need to reload the configuration file to take effect.

3) Set the session timeout for an existing database user

ALTER PROFILE DEFAULT LIMIT idle_time UNLIMITED;
alter user user_name profile default;

In the above command, we set the timeout for a certain user to unlimited, which means that the session timeout is unlimited. The user's session will not be closed no matter how long it is idle.

  1. Notes

When setting the timeout period, you need to pay attention to the following points:

  • The timeout period needs to be based on different applications. Determine the scenario
  • The timeout should not be too long, otherwise it will waste database resources
  • It should be noted that the session timeout cannot be set to 0, otherwise the session will become an indefinite state
  1. Summary

The setting of timeout time is very important in Oracle, which can improve the efficiency of data processing and the reliability of applications. By setting the timeout in the Oracle database, we can flexibly adjust the system configuration parameters to better adapt to different application scenarios. However, you need to pay attention to rationality when setting the timeout period, so as to ensure the stability and reliability of the system.

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