How to delete directory from Oracle database

In Oracle database, deleting a directory is not a very complicated operation, but it may require some practice to master. In this article, we will take a deep dive into how to delete a directory from an Oracle database to fully understand the process.

Before we start, we need to make sure that we have mastered some terminology and basic knowledge related to database operations. If you need more help, it is recommended that you refer to Oracle's official documentation and other related resources.

The first step is to find the name of the directory

Before deleting the directory, we need to know the name of the directory to be deleted. This is typically accomplished by querying Oracle's data dictionary views. You can use the following query to list all directories:

SELECT * FROM USER_DIRECTORIES;

This will list information about all directories owned by the current user, including the directory's name, path, and description. Once you have determined the name of the directory you want to delete, you can proceed to the next step.

Second step, delete the directory

After knowing the directory name, deleting the directory is very simple. We just need to use the following command:

DROP DIRECTORY <directory_name>;</directory_name>

Where, is the name of the directory to be deleted. When you run this command, Oracle will delete the directory with the specified name and any files stored in it.

Please note that deleting a directory requires sufficient permissions, and once a directory and the files in it are deleted, they cannot be recovered. Therefore, before running the delete command, make sure you have backed up all your valuable files and that you fully understand the risks of deleting the directory.

The third step is to verify whether the directory has been deleted

In order to ensure that the directory has been deleted from the Oracle database, please use the following command to query all directories of the current user:

SELECT * FROM USER_DIRECTORIES;

If The directory with the specified name has been successfully deleted, so its name will no longer appear in this list.

Conclusion

Deleting a directory in an Oracle database is not a complicated operation, but you need to ensure sufficient permissions and clear understanding before deleting. This article describes how to find a directory name by using a data dictionary view and delete a directory using the DROP DIRECTORY command. Additionally, it describes how to verify that the directory was successfully deleted. Mastering these steps in practice will make you a more effective and confident Oracle database administrator.

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