Java - Como cuento mis datos de consulta de una base de datos Oracle y posteriormente guardarlo

                        //Creando el arreglo que contiene imagenes

			ArrayList<Imageicon> myArrList = new ArrayList<>();

			try {

				BufferedImage br = new BufferedImager(new FileReader(file));

				String line;

				while ((line = br.readLine()) != null) {

					myArrList.add(line);

				}

				br.close();

			} catch (IOException e) {

				// TODO Auto-generated catch block

				e.printStackTrace();

			}

                                //for para hacer el insert into a la base de datos

				for (int i = 0; i < myArrList.size(); i++) {

					// SQL Insert

					String sql = "INSERT INTO data(dataline) " + "VALUES (?) ";

					PreparedStatement pst = connect.prepareStatement(sql);

					pst.setString(1, myArrList.get(i));

					System.out.println(i + " " + myArrList.get(i));

					pst.executeUpdate();

				}

SELECT

    COUNT(*) numero_de_tablas

    FROM information_schema.tables

    WHERE table_schema='tu_base_de_datos';

SELECT tablename FROM pg_tables WHERE schemaname = 'public'

use[mi_Base]

SELECT Count FROM information_schema.tables

select distinct SEGMENT_TYPE from DBA_SEGMENTS;