Using Python to Operate Oracle

To use Python to operate Oracle Database, we need to install ` cx_ Oracle ` library` Cx_ Oracle 'is a third-party library used to connect and operate Oracle Database. The following is a complete Python code example that demonstrates how to connect to the Oracle Database and insert, query, modify, and delete data. python import cx_Oracle #Connect to Oracle Database Dsn=cx_ Oracle. makedsn (host='localhost ', port='1521', sid='ORCL ') # Replace with your database connection information Conn=cx_ Oracle. connect (user='username ', password='password', dsn=dsn) # Replace with your username and password #Create Cursor cursor = conn.cursor() #Create Table create_table_query = """ CREATE TABLE employees ( employee_id INT PRIMARY KEY, first_name VARCHAR2(50), last_name VARCHAR2(50), email VARCHAR2(100) ) """ cursor.execute(create_table_query) #Insert Data insert_data_query = """ INSERT INTO employees (employee_id, first_name, last_name, email) VALUES (:id, :first_name, :last_name, :email) """ data = [ {'id': 1, 'first_name': 'John', 'last_name': 'Doe', 'email': 'john.doe@example.com'}, {'id': 2, 'first_name': 'Jane', 'last_name': 'Smith', 'email': 'jane.smith@example.com'} ] cursor.executemany(insert_data_query, data) conn.commit() #Query data select_data_query = "SELECT * FROM employees" cursor.execute(select_data_query) result = cursor.fetchall() for row in result: print(row) #Modify data update_data_query = """ UPDATE employees SET email = :email WHERE employee_id = :id """ update_data = {'email': 'new.email@example.com', 'id': 1} cursor.execute(update_data_query, update_data) conn.commit() #Delete data delete_data_query = "DELETE FROM employees WHERE employee_id = :id" delete_data = {'id': 2} cursor.execute(delete_data_query, delete_data) conn.commit() #Close cursors and connections cursor.close() conn.close() This is a simple example that demonstrates how to create tables, insert data, query data, modify data, and delete data. You can expand and modify according to your own needs.