Oracle accesses the data dictionary to find information about users, schema objects, and storage structures. Oracle modifies the data dictionary every time that a data definition language (DDL) …

Apr 11, 2017 · This is a list of handy SQL queries to the Oracle database data dictionary. You can also find many more useful queries here. Excluding standard Oracle schemas Prior Oracle 12c …

A data dictionary contains: The definitions of all schema objects in the database (tables, views, indexes, clusters, synonyms, sequences, procedures, functions, packages, triggers).

The data dictionary refers to the core collection of read-only reference tables and views within every Oracle database. The dynamic performance views are special views that are …

Jul 23, 2025 · User-accessible views can be viewed by all users using SQL query depending on the permission given by the Database Admin. Data Dictionary views are classified into three …

Each Oracle database has a data dictionary, which is a set of tables and views that serve as a reference about the database. For example, a data dictionary stores information about both …

The central set of read-only reference tables and views of each Oracle database is known collectively as the data dictionary. The dynamic performance views are special views that are …

Jul 19, 2025 · The Data Dictionary in Oracle is a centralized repository of metadata that describes the structure, permissions, constraints, and relationships of all objects in the database.

This document presents Oracle's data dictionary, also called the system catalogue. The data dictionary is the repository of all the meta-data relevant to the objects stored in the …

Data Dictionary is a set of read-only tables and views that contain information about the database’s structure, including details on schemas, users, privileges, and system settings.