CARA MEMBUAT DATABASE,TABLE,DAN MENYIMPAN DATA KE DALAM DATABASE.

Buatlah project baru yang bernama SQLiteDatabase.dengan nama package percobaan1 yang berisi dua buah class yang bernama Database1 dan DBAdapter.java

Berikut sourcecode main.xml

<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:paddingBottom="@dimen/activity_vertical_margin"
    android:paddingLeft="@dimen/activity_horizontal_margin"
    android:paddingRight="@dimen/activity_horizontal_margin"
    android:paddingTop="@dimen/activity_vertical_margin"
    tools:context=".DBAdapter" >

    <TextView
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="@string/hello_world" />

</RelativeLayout>



Sourcecode Database1.java
 package com.percobaan1.database1;

import android.app.Activity;
import android.os.Bundle;

public class Database1 extends Activity {
    /** Called when the activity is first created. */
 @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);

        DBAdapter db = new DBAdapter(this);

        //---add 3 titles---
        db.open();      
        long id;
        id = db.insertTitle(
          "1234512345",
          "Android Programmer's Reference",
                "Washington Press");      
        id = db.insertTitle(
          "5432112345",
          "Linux Programming",
          "Bandung Press");
        id = db.insertTitle(
          "0987654321",
          "Android Devlopment Life Cycle",
          "Hongkong Press");
        db.close();
    }

}








Source code DBAdapter .java

 package com.percobaan1.database1;

import android.content.ContentValues;
import android.content.Context;
import android.database.Cursor;
import android.database.SQLException;
import android.database.sqlite.SQLiteDatabase;
import android.database.sqlite.SQLiteOpenHelper;
import android.util.Log;

public class DBAdapter
{
    public static final String KEY_ROWID = "_id";
    public static final String KEY_ISBN = "isbn";
    public static final String KEY_TITLE = "title";
    public static final String KEY_PUBLISHER = "publisher";  
    private static final String TAG = "DBAdapter";
  
    private static final String DATABASE_NAME = "books";
    private static final String DATABASE_TABLE = "titles";
    private static final int DATABASE_VERSION = 1;

    private static final String DATABASE_CREATE =
        "create table titles (_id integer primary key autoincrement, "
        + "isbn text not null, title text not null, "
        + "publisher text not null);";
      
    private final Context context;
  
    private DatabaseHelper DBHelper;
    private SQLiteDatabase db;

    public DBAdapter(Context ctx)
    {
        this.context = ctx;
        DBHelper = new DatabaseHelper(context);
    }
      
    private static class DatabaseHelper extends SQLiteOpenHelper
    {
        DatabaseHelper(Context context)
        {
            super(context, DATABASE_NAME, null, DATABASE_VERSION);
        }

        @Override
        public void onCreate(SQLiteDatabase db)
        {
            db.execSQL(DATABASE_CREATE);
        }

        @Override
        public void onUpgrade(SQLiteDatabase db, int oldVersion,
        int newVersion)
        {
          
            Log.w(TAG, "Upgrading database from version " + oldVersion
                    + " to "
                    + newVersion + ", which will destroy all old data");
            db.execSQL("DROP TABLE IF EXISTS titles");
            onCreate(db);
        }
    }  
  
    //---opens the database---
    public DBAdapter open() throws SQLException
    {
        db = DBHelper.getWritableDatabase();
        return this;
    }

    //---closes the database---  
    public void close()
    {
        DBHelper.close();
    }
  
    //---insert a title into the database---
    public long insertTitle(String isbn, String title, String publisher)
    {
        ContentValues initialValues = new ContentValues();
        initialValues.put(KEY_ISBN, isbn);
        initialValues.put(KEY_TITLE, title);
        initialValues.put(KEY_PUBLISHER, publisher);
        return db.insert(DATABASE_TABLE, null, initialValues);
    }

    //---deletes a particular title---
    public boolean deleteTitle(long rowId)
    {
        return db.delete(DATABASE_TABLE, KEY_ROWID +
          "=" + rowId, null) > 0;
    }

    //---retrieves all the titles---
    public Cursor getAllTitles()
    {
        return db.query(DATABASE_TABLE, new String[] {
          KEY_ROWID,
          KEY_ISBN,
          KEY_TITLE,
          KEY_PUBLISHER},
          null,
          null,
          null,
          null,
          null);
}

//---retrieves a particular title---
public Cursor getTitle(long rowId) throws SQLException
{
  Cursor mCursor =
          db.query(true, DATABASE_TABLE, new String[] {
            KEY_ROWID,
            KEY_ISBN,
            KEY_TITLE,
            KEY_PUBLISHER
            },
            KEY_ROWID + "=" + rowId,
            null,
            null,
            null,
            null,
            null);
  if (mCursor != null) {
      mCursor.moveToFirst();
  }
  return mCursor;
}

//---updates a title---
public boolean updateTitle(long rowId, String isbn,
String title, String publisher)
{
  ContentValues args = new ContentValues();
  args.put(KEY_ISBN, isbn);
  args.put(KEY_TITLE, title);
  args.put(KEY_PUBLISHER, publisher);
  return db.update(DATABASE_TABLE, args,
                   KEY_ROWID + "=" + rowId, null) > 0;
}
}

 

Terima kasih..
Semoga Bermanfaat....