Android alarm app which uses an SQLite database, and will run in the background

I have been searching on the internet for the better half of 24 hours for a guide to teach me how to make an alarm in android which will go off when it meets the requirements of a specific date, and time stored in a database(which has been defined by the user), and all I find are dead ends.

Is there any chance that I could get some help here? I successfully set up an SQL database, but not the alarm.

The DatabaseHandler class file

import android.content.ContentValues;
import android.content.Context;
import android.database.Cursor;
import android.database.sqlite.SQLiteDatabase;
import android.database.sqlite.SQLiteOpenHelper;
import android.net.Uri;
import android.widget.AbsoluteLayout;

import java.util.ArrayList;
import java.util.List;


public class DatabaseHandler extends SQLiteOpenHelper{

    private static final int DATABASE_VERSION = 1;
    private static final String DATABASE_NAME = "FoodTekTrakr",
            DATABASE_TABLE = "AlarmManager",
            KEY_ID = "id",
            KEY_NAME = "name",
            KEY_PHONE = "phone",
            KEY_EMAIL = "email",
            KEY_ADDRESS = "address";

    public DatabaseHandler(Context context) {
        super(context, DATABASE_NAME, null, DATABASE_VERSION);
    }

    @Override
    public void onCreate(SQLiteDatabase db){
        db.execSQL("CREATE TABLE " + DATABASE_TABLE + "(" + KEY_ID + " INTEGER PRIMARY KEY AUTOINCREMENT," + KEY_NAME + " TEXT," + KEY_PHONE + " TEXT," + KEY_EMAIL + " TEXT," + KEY_ADDRESS + " TEXT)");
    }

    @Override
    public void onUpgrade(SQLiteDatabase db,int oldVersion, int newVersion) {
        db.execSQL("DROP TABLE IF EXISTS " + DATABASE_TABLE);
        onCreate(db);
    }

    public void createAlarm(UserInputAlarmData AlarmData){
        SQLiteDatabase db = getWritableDatabase();

        ContentValues values = new ContentValues();

        values.put(KEY_NAME, AlarmData.getName());
        values.put(KEY_PHONE, AlarmData.getPhone());
        values.put(KEY_EMAIL, AlarmData.getEmail());
        values.put(KEY_ADDRESS, AlarmData.getAddress());

        db.insert(DATABASE_TABLE, null, values);
        db.close();
    }

    public UserInputAlarmData getAlarmData(int id){
        SQLiteDatabase db = getReadableDatabase();

        Cursor cursor = db.query(DATABASE_TABLE, new String[] {KEY_ID, KEY_NAME, KEY_PHONE, KEY_EMAIL, KEY_ADDRESS}, KEY_ID
                + "=?", new String[] {String.valueOf(id) }, null, null, null );

        if (cursor != null)
            cursor.moveToFirst();

        UserInputAlarmData AlarmData = new UserInputAlarmData(Integer.parseInt(cursor.getString(0)), cursor.getString(1), cursor.getString(2), cursor.getString(3), cursor.getString(4));
        db.close();
        cursor.close();
        return AlarmData;
    }

    public void deleteAlarm(UserInputAlarmData AlarmData){
        SQLiteDatabase db = getWritableDatabase();
        db.delete(DATABASE_TABLE, KEY_ID + "=?", new String[] { String.valueOf(AlarmData.getId()) });
        db.close();
    }

    public int getAlarmDataCount() {
        SQLiteDatabase db =getReadableDatabase();
        Cursor cursor = db.rawQuery("SELECT * FROM " + DATABASE_TABLE, null);

        int count = cursor.getCount();
        db.close();
        cursor.close();

        return count;
    }

    public int updateAlarmData(UserInputAlarmData AlarmData){
        SQLiteDatabase db = getWritableDatabase();

        ContentValues values = new ContentValues();

        values.put(KEY_NAME, AlarmData.getName());
        values.put(KEY_PHONE, AlarmData.getPhone());
        values.put(KEY_EMAIL, AlarmData.getEmail());
        values.put(KEY_ADDRESS, AlarmData.getAddress());

        return db.update(DATABASE_TABLE, values, KEY_ID + "=?", new String[] { String.valueOf(AlarmData.getId())});
    }

    public List<UserInputAlarmData> getAllAlarmData() {
        List<UserInputAlarmData> AlarmDatas = new ArrayList<UserInputAlarmData>();
        SQLiteDatabase db = getWritableDatabase();
        Cursor cursor = db.rawQuery("SELECT * FROM " + DATABASE_TABLE, null);

        if (cursor.moveToFirst()) {
            do {
                UserInputAlarmData AlarmData = new UserInputAlarmData(Integer.parseInt(cursor.getString(0)), cursor.getString(1), cursor.getString(2), cursor.getString(3), cursor.getString(4));
                AlarmDatas.add(AlarmData);
            }
            while (cursor.moveToNext());
        }
        return  AlarmDatas;
    }

}

The other piece of code for the database handler is called UserInputAlarmData

import android.app.Notification;
import android.net.Uri;

public class UserInputAlarmData {
    private int _id;
    private String _name, _phone, _email, _address;

    public UserInputAlarmData (int id, String name, String phone, String email, String address){
        _id = id;
        _name = name;
        _phone = phone;
        _email = email;
        _address = address;
    }

    public String get_Name() {
        return _name;
    }

    public String get_phone() {
        return _phone;
    }

    public String get_email() {
        return _email;
    }

    public String get_address() {
        return _address;
    }

    public int getId() {return  _id;}
    public String getName() {return _name;}
    public String getPhone() {return _phone;}
    public String getEmail() {return _email;}
    public String getAddress() {return  _address;}
}