String jdbcUrl = "jdbc:postgresql://your-database-endpoint:your-port/your-database"; Properties properties = new Properties(); properties.setProperty("user", "your-username"); properties.setProperty("password", "your-password"); properties.setProperty("ssl", "true"); Connection connection = DriverManager.getConnection(jdbcUrl, properties); String accessKey = "your-access-key"; String secretKey = "your-secret-key"; String jdbcUrl = "jdbc:postgresql://your-database-endpoint:your-port/your-database"; Properties properties = new Properties(); properties.setProperty("user", "your-username"); properties.setProperty("password", "your-password"); properties.setProperty("aws_access_key_id", accessKey); properties.setProperty("aws_secret_access_key", secretKey); Connection connection = DriverManager.getConnection(jdbcUrl, properties); String jdbcUrl = "jdbc:postgresql://your-database-endpoint:your-port/your-database"; Properties properties = new Properties(); properties.setProperty("user", "your-username"); properties.setProperty("password", "your-password"); properties.setProperty("iam", "true"); Connection connection = DriverManager.getConnection(jdbcUrl, properties); String jdbcUrl = "jdbc:postgresql://your-database-endpoint:your-port/your-database"; Properties properties = new Properties(); properties.setProperty("user", "your-username"); properties.setProperty("password", "your-password"); Connection connection = DriverManager.getConnection(jdbcUrl, properties); Statement statement = connection.createStatement(); statement.execute("GRANT SELECT ON your-table TO your-user");