Effortlessly Delete Materialized Views in Oracle with These Simple Steps（oracle删除物化视图）

Materialized views provide a way to store pre-calculated results and access them quickly, making data retrieval faster and easier than it would be with a normal table. However, when you want to remove these views in Oracle, the task can be tedious and time-consuming. Here are some simple steps to help you delete materialized views in Oracle quickly and easily.

The first step in deleting materialized views is to identify any dependent objects that rely on the view. materialized views may be called by other stored procedures, so it’s important to check for dependencies before deleting the view. To check for dependencies, you can use the following command:

SELECT *
FROM dba_dependencies 
WHERE referenced_name = ‘VIEW_NAME’;

Replace “VIEW_NAME” with the name of your materialized view. This will return any stored procedures, functions, or other objects that rely on the materialized view you’re trying to delete.

Once you’ve identified any dependent objects, the next step is to drop these objects before deleting the materialized view. This can be done with the following command:

DROP OBJECT_TYPE object_name; 

Replace “OBJECT_TYPE” with the type of object you’re deleting (e.g., PROCEDURE, FUNCTION, etc.), and “object_name” with the name of the object.

With dependent objects out of the way, it’s time to delete the materialized view. This is done with the following command:

DROP MATERIALIZED VIEW view_name;

Replace “view_name” with the name of the materialized view. After executing this command, the materialized view should be gone.

If you’re looking for a way to quickly and effortlessly delete materialized views in Oracle, these steps should be all you need. Just remember to always check for dependent objects before deleting materialized views, to avoid any unexpected problems.