Android SQLite Database Tutorial 1 + 2 # Introduction + Creating Database and Tables

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package com.example.programmingknowledge.sqliteapp; import android.content.Context; import android.database.sqlite.SQLiteDatabase; import android.database.sqlite.SQLiteOpenHelper; /** * Created by ProgrammingKnowledge on 4/3/2015. */ public class DatabaseHelper extends SQLiteOpenHelper { public static final String DATABASE_NAME = "Student.db"; public static final String TABLE_NAME = "student_table"; public static final String COL_1 = "ID"; public static final String COL_2 = "NAME"; public static final String COL_3 = "SURNAME"; public static final String COL_4 = "MARKS"; public DatabaseHelper(Context context) { super(context, DATABASE_NAME, null, 1); SQLiteDatabase db = this.getWritableDatabase(); } @Override public void onCreate(SQLiteDatabase db) { db.execSQL("create table " + TABLE_NAME +" (ID INTEGER PRIMARY KEY AUTOINCREMENT,NAME TEXT,SURNAME TEXT,MARKS INTEGER)"); } @Override public void onUpgrade(SQLiteDatabase db, int oldVersion, int newVersion) { db.execSQL("DROP TABLE IF EXISTS "+TABLE_NAME); onCreate(db); } }

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package com.example.programmingknowledge.sqliteapp; import android.support.v7.app.ActionBarActivity; import android.os.Bundle; import android.view.Menu; import android.view.MenuItem; public class MainActivity extends ActionBarActivity { DatabaseHelper myDb; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); myDb = new DatabaseHelper(this); } @Override public boolean onCreateOptionsMenu(Menu menu) { // Inflate the menu; this adds items to the action bar if it is present. getMenuInflater().inflate(R.menu.menu_main, menu); return true; } @Override public boolean onOptionsItemSelected(MenuItem item) { // Handle action bar item clicks here. The action bar will // automatically handle clicks on the Home/Up button, so long // as you specify a parent activity in AndroidManifest.xml. int id = item.getItemId(); //noinspection SimplifiableIfStatement if (id == R.id.action_settings) { return true; } return super.onOptionsItemSelected(item); } }

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<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android" xmlns:tools="http://schemas.android.com/tools" android:layout_width="match_parent" android:layout_height="match_parent" android:paddingLeft="@dimen/activity_horizontal_margin" android:paddingRight="@dimen/activity_horizontal_margin" android:paddingTop="@dimen/activity_vertical_margin" android:paddingBottom="@dimen/activity_vertical_margin" tools:context=".MainActivity"> </RelativeLayout>

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