WebdbHelper: includes two methods: 1: adding a new row to db 2: reading rows from db: the problem is here, I guess, I used debugger, when it was going to invoke this method, It suddenly crashes WebJun 27, 2015 · public class MyDataBaseHelper extends SQLiteOpenHelper{ public static final String CREATE_BOOK = "creat table book (" + "id integer primary key autoincrement, " + "author
Android知识点（一） - 简书
Webclass MyDBHelper extends SQLiteOpenHelper { private static final String DATABASE_NAME = "dbname.db" ; private static final int DATABASE_VERSION = 1 ; public MyDBHelper(Context context) { super (context, DATABASE_NAME, null, DATABASE_VERSION); } @Override public void onCreate(SQLiteDatabase db) { // … WebAdd Contacts. The following code demonstrates how you can add a contact to the table. import android.app.Activity; import android.os.Bundle; //from w w w . j av a2 s . c o m public class DatabasesActivity extends Activity { @Override public void onCreate (Bundle savedInstanceState) { super.onCreate (savedInstanceState); DBAdapter db = new ... mcdonough west
SQLite Error inserting on new ContentValues (); - Stack Overflow
WebApr 23, 2009 · MydatabaseHelper：（数据库的管理类）. package com.example.database; import android.content.Context; import android.database.sqlite.SQLiteDatabase; import … WebOct 19, 2015 · database = dbHelper.getWritableDatabase (); Cursor cursor = (Cursor) p.getItemAtPosition (po); // Get the state's capital from this row in the database. long ID = cursor.getLong (cursor.getColumnIndexOrThrow ("_id")); sqlcon.delete (ID); } }); and then try this snippet cursor=sqlcon.readEntry (name1); dataAdapter = new SimpleCursorAdapter … WebDec 11, 2012 · Then in your activity, do MyDatabaseHelper dbHelper = new MyDatabaseHelper(), then you define the projections and selections you need when you call dbHelper.getCuror(), or the other methods. This code was written when I was just beginning with programming, so from a structural POV, it's pretty badly written(at least, … mcdonough western wear