Create procedure myprocinout with an IN/OUT parameter named x; x is an IN parameter and an OUT parameter : Oracle « Database « Java Tutorial

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2. Database
3. Oracle

import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.Statement;

public class Main {
  public static void main(String[] argv) throws Exception {
    String driverName = "oracle.jdbc.driver.OracleDriver";
    Class.forName(driverName);

    String serverName = "127.0.0.1";
    String portNumber = "1521";
    String sid = "mydatabase";
    String url = "jdbc:oracle:thin:@" + serverName + ":" + portNumber + ":" + sid;
    String username = "username";
    String password = "password";
    Connection connection = DriverManager.getConnection(url, username, password);
    String procedure = "CREATE OR REPLACE PROCEDURE myprocinout(x IN OUT VARCHAR) IS BEGIN "
        + "INSERT INTO oracle_table VALUES(x); " // Use x as IN parameter
        + "x := 'outvalue'; " // Use x as OUT parameter
        + "END;";
    Statement stmt = connection.createStatement();
    stmt.executeUpdate(procedure);
  }
}