How to view the database in oracle

There are several ways to view the contents of an Oracle database: Use the SQL Plus command line tool to enter the DESCRIBE command. Use Oracle Enterprise Manager Console to navigate to the Object Browser. Use the Oracle SQL Developer GUI to connect to the database and navigate to the Object Browser. Extend the Object Browsing section with TOAD. Use PL/SQL Developer to expand the Object Browser section and select Edit. Export schema scripts, query data dictionary views, or use third-party tools.

How to view an Oracle database

Viewing an Oracle database can help you understand its content, structure, and health. Here are several methods:

Use the SQL Plus command line tool

Open the SQL Plus command line, connect to the database and enter the following command:

<code>> DESCRIBE <表名>;</code>

This will display the columns, data types and constraints in the table.

Using Oracle Enterprise Manager Console

Open the Oracle Enterprise Manager Console and navigate to the Object Browser section. Under Tables, expand the relevant schema, right-click the table name and select Description.

Using the Oracle SQL Developer GUI

Open the Oracle SQL Developer GUI, connect to the database and navigate to the Object Browser panel. Expand the Schema, Tables tab, and double-click the table name. This will display the table details including columns and data types.

Using TOAD (Tools Assisted Oracle Development)

Open TOAD, connect to the database and expand the "Object Browsing" section. Right-click the table name and select View Table Data. This will provide a visual representation of the table.

Using PL/SQL Developer

Open PL/SQL Developer, connect to the database and expand the "Object Browser" section. Right-click the table name and select Edit. This will display the script for the table with column details.

Other methods

• Export the schema script: Use the expdp utility to export the schema's DDL script, including Table definitions and constraints.
• Query data dictionary views: Query views such as ALL_TABLES, ALL_TAB_COLUMNS, and ALL_CONSTRAINTS to obtain table details.
• Use third-party tools: Use third-party tools such as DbVisualizer or SQL Workbench to browse and query Oracle databases.

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