How to display the oracle database

Oracle database provides multiple ways to display data: SELECT statement: Retrieve specific data, such as retrieving last names ending with "Smith" from the customers table. SQLPlus: Command line interface query, such as SELECT * FROM customers. PL/SQL: Use code to manipulate data, such as using cursor loops to display customer IDs. Oracle SQL Developer: A graphical tool that provides a SQL editor, results grid, and data viewer. RESTful API: Use HTTP requests to retrieve data, such as getting customer data from /api/customers.

Methods for Oracle database to display data

Oracle database provides a variety of methods to display data, including:

• SELECT statement: This is the most common way to display data. The SELECT statement is used to retrieve data for a specific column or row from a database table. For example:

<code>SELECT * FROM customers WHERE last_name = 'Smith';</code>

• SQLPlus: SQLPlus is an interactive tool provided by Oracle that can be used to query the database and display the results. It uses a command line interface and can display data using the following command:

<code>SQL> SELECT * FROM customers;</code>

• PL/SQL: PL/SQL is a programming language that can be used to work with Oracle databases data. The data can be displayed using the following code:

<code>DECLARE
  CURSOR c_customers IS
  SELECT * FROM customers;
BEGIN
  FOR r_customer IN c_customers LOOP
    DBMS_OUTPUT.PUT_LINE(r_customer.customer_id);
  END LOOP;
END;</code>

• Oracle SQL Developer: Oracle SQL Developer is a graphical tool that can be used to query the database and display the results . It provides a variety of features, including:

  • SQL Editor and Executor
  • Result Grid and Chart
  • Data Viewer
  • Database Management Tools
• RESTful API: Oracle Database can expose data through the RESTful API. Data can be retrieved from the API using HTTP requests and displayed in a web application or mobile application. For example:

<code>curl -X GET "https://example.com/api/customers"</code>

These methods provide flexibility, allowing users to choose the most appropriate method to display Oracle database data based on their needs.

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