How to view oracle database content

There are many ways to view the contents of an Oracle database: SQL Developer: a graphical tool for querying, browsing, and managing database contents. SQL Plus: Command line tool for executing SQL commands. Toad: Commercial tool for viewing, managing, and developing databases. SQL queries: You can use SQL queries such as select, where, group by, and order by to view specific data.

How to view the contents of the Oracle database

There are many ways to view the contents of the Oracle database. This article will introduce the common ones. Tools and commands:

SQL Developer

SQL Developer is a free graphical user interface tool provided by Oracle that can be used to query, browse and manage database content. To view the contents of the database, follow these steps:

1. Open a database connection in SQL Developer.
2. Expand the database node in the "Object Browser" panel.
3. Expand the table, view, or other database object you want to view.
4. Double-click the object name or right-click and select View Data.

SQL Plus

SQL Plus is a command line tool provided by Oracle that can be used to execute SQL commands. To view the contents of the database, follow these steps:

1. Open a SQL Plus terminal window.
2. Connect to the database using the following command:

<code class="sql">connect username/password@database_name</code>

3. Execute the following command to view all rows in the table:

<code class="sql">select * from table_name;</code>

Toad

Toad is a commercial database management tool that can be used to view, manage and develop databases. To view the contents of the database, follow these steps:

1. Open a database connection in Toad.
2. Expand the database node in the "Object Browser" panel.
3. Expand the table, view, or other database object you want to view.
4. Double-click the object name or right-click and select Data Grid View.

Using SQL queries

You can also use the following query in a SQL command to view specific data:

• select: Select columns and rows in the table.
• where: Filter rows under specific conditions.
• group by: Group the data and summarize the results.
• order by: Sort data in a specific order.

For example, to view the names and salaries of all employees in table employees, you can use the following query:

<code class="sql">select first_name, last_name, salary from employees;</code>

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