Trouble in Implementing Camera Images Storage in SQLite Database on Android

Question

I have recently made an App which has a basic Intent which opens the default camera app on device. But I want to expand it's functionality which will enable it to store the captured image from camera to the SQLite Database. Along with displaying the images already stored in the database. Also I want to display the Date & Time of the image which is captured below the image, as well as Add a Comment box below the date/time of the image.

The code for the MainActivity is as follows:

import android.content.Intent;
import android.graphics.Bitmap;
import android.provider.MediaStore;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
import android.widget.ImageView;

public class MainActivity extends AppCompatActivity {

    ImageView imageView;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        Button btnCamera = (Button) findViewById(R.id.btnCamera);
        imageView = (ImageView) findViewById(R.id.imageView);

        btnCamera.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {
                Intent intent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);
                startActivityForResult(intent, 0);
            }
        });
    }

    @Override
    protected void onActivityResult(int requestCode, int resultCode, Intent data) {
        super.onActivityResult(requestCode, resultCode, data);

        Bitmap bitmap = (Bitmap)data.getExtras().get("data");
        imageView.setImageBitmap(bitmap);
    }
}

Code for the Activity's Layout XML is as follows:

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:paddingBottom="16dp"
    android:paddingLeft="16dp"
    android:paddingRight="16dp"
    android:paddingTop="16dp"
    android:orientation="vertical"
    android:weightSum="10"
    tools:context=".MainActivity">

    <ImageView
        android:id="@+id/imageView"
        android:layout_weight="9"
        android:layout_width="match_parent"
        android:layout_height="fill_parent"
        />

    <Button
        android:id="@+id/btnCamera"
        android:layout_weight="1"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:background="@android:color/holo_red_dark"
        android:textColor="@android:color/white"
        android:text="Open Camera"
        />

</LinearLayout>