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Oracle® Database Reference
11g Release 1 (11.1)

B28320-03
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Creating the Data Dictionary

When you use the Database Configuration Assistant to create a database, Oracle automatically creates the data dictionary. Thereafter, whenever the database is in operation, Oracle updates the data dictionary in response to every DDL statement.

The data dictionary base tables are the first objects created in any Oracle database. They are created in the SYSTEM tablespace and must remain there. The data dictionary base tables store information about all user-defined objects in the database.

Table B-1 lists required scripts, which are run automatically when you create a database using the Database Configuration Assistant. They are described here because you might need to run them if you create a database manually. To run these scripts, you must be connected to Oracle as a user with SYSDBA privileges.

Table B-1 Creating the Data Dictionary Scripts

Script Name Needed For Description

catalog.sql

All databases

Creates the data dictionary and public synonyms for many of its views

Grants PUBLIC access to the synonyms

catproc.sql

All databases

Runs all scripts required for, or used with, PL/SQL

catclust.sql

Real Application Clusters

Creates Real Application Clusters data dictionary views


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