In Oracle, an invalid object is an object that has been dropped or renamed, however its entry nonetheless exists within the information dictionary. Invalid objects may cause errors while you attempt to entry them, so you will need to examine for and take away them recurrently.
There are a couple of other ways to examine for invalid objects in Oracle. A technique is to make use of the DBA_OBJECTS view. This view comprises a column referred to as STATUS that signifies the standing of the article. If the STATUS column is ready to INVALID, then the article is invalid. Right here is an instance of a question that you need to use to search out invalid objects: