Storing File Path Names
In your text table, store path names to files stored in your file system. During indexing, use the DIRECTORY_DATASTORE preference type. This method of data storage is supported only for CONTEXT indexes.
Note:
Starting with Oracle Database 19c, the Oracle Text type FILE_DATASTORE is deprecated. Use DIRECTORY_DATASTORE instead.
Oracle recommends that you replace FILE_DATASTORE text indexes with the DIRECTORY_DATASTORE index type, which is available starting with Oracle Database 19c. DIRECTORY_DATASTORE provides greater security because it enables file access to be based on directory objects.