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Data dictionary is a table with data elements (columns) as rows and their attributes as columns. Specific attributes vary depending on the purpose of the data dictionary.

Data dictionary tables Table nameContentsMAXVIEWAll views.MAXATTRIBUTEAll attributes of an object. A table or view attribute depends on the attributes of the object.MAXVIEWCOLUMNAll view columns.MAXRELATIONSHIPAll relationships defined on objects.5 more rows

The data dictionary base tables are the first objects created in any Oracle database. All data dictionary tables and views for a database are stored in the SYSTEM tablespace. Because the SYSTEM tablespace is always online when the database is open, the data dictionary is always available when the database is open.

A Data Dictionary is a collection of names, definitions, and attributes about data elements that are being used or captured in a database, information system, or part of a research project.

It contains information about data type, character limit, default value, dependency, and other attributes of a field. Access the system dictionary in one of these ways: To see the system dictionary list view, navigate to System Definition > Dictionary.

Oracle Data Dictionary Structure Base Tables: Base Tables are the foundation of the Data Dictionary. It contains information about the database to which it is associated. It is READ-only, and only the Oracle server or processing engine can access it Users can't access it.

A simple data dictionary is a repository of information about the database, usually in a database itself, that stores object information and attributes, versioned over time. A data dictionary can contain the following information about a particular object: Datetime the current object was created or changed. Object name.

A simple data dictionary is a repository of information about the database, usually in a database itself, that stores object information and attributes, versioned over time. A data dictionary can contain the following information about a particular object: Datetime the current object was created or changed. Object name.