Oracle Database Administration from Zero to Hero - Practice - Querying Data Dictionary

This video tutorial covers how to interact with Oracle databases using dynamic performance and data dictionary views. It explains the process of connecting to a database, mounting it, and the limitations of accessing certain views in mount mode. The tutorial also demonstrates querying dynamic performance views, exploring tablespace structures, and linking views for comprehensive data retrieval. It concludes with a comparison of user and system views and encourages further exploration of additional dictionary views.

What happens to data dictionary views when the database is in mount mode?

Describe the process of retrieving tablespace names and data files in Oracle.

Explain the difference between DBA_tables and user_TABLES views.

How does the access level of the HR user affect the number of rows retrieved from user_TABLES?

What are dynamic performance views and how are they used in Oracle databases?