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app.py

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+import os
+from dotenv import load_dotenv
+import cx_Oracle
+
+load_dotenv()
+
+user = os.getenv("DB_USER")
+password = os.getenv("DB_PASSWORD")
+host = os.getenv("DB_HOST")
+port = os.getenv("DB_PORT", "1521")
+sid = os.getenv("DB_SID")
+
+dsn = cx_Oracle.makedsn(host, port, sid=sid)
+
+try:
+    connection = cx_Oracle.connect(user=user, password=password, dsn=dsn)
+    cursor = connection.cursor()
+    cursor.execute("SELECT CODIGO_PERSONAL FROM FPERSONA WHERE APELLIDO1 LIKE '%ALFARO%'")
+
+    for row in cursor:
+        print(row)
+
+    cursor.close()
+    connection.close()
+except cx_Oracle.DatabaseError as e:
+    print(f"Error de conexión: {e}")