Day70-oracle 13-Data dictionary

Actually, the data dictionary is the table. This kind of table is very special, give it a name called data dictionary. Since it is a table, it is to save the data. It has this data: What permissions the user has, what tables the user has created, which tables the user can access, and this information is not related to the employee table, the departmental table. It reflects the state of the user itself, the information itself. This information is stored in a special table in the Oracle database, which is called a data dictionary.

Data dictionaries conform to a named rule

Day70-oracle 13-Data dictionary