I know that this question have been asked many times but believe me I have been through all although I couldn't solve error. I already tried all the links on stackoverflow. and even all question i referred so plz suggest me solution of this problem.
Logcat
Here is my Error Log
07-16 17:48:44.231: E/SQLiteLog(14476): (1) no such table: users 07-16 17:48:44.231: D/AndroidRuntime(14476): Shutting down VM 07-16 17:48:44.231: W/dalvikvm(14476): threadid=1: thread exiting with uncaught exception (group=0x418d6ba8) 07-16 17:48:44.251: E/AndroidRuntime(14476): FATAL EXCEPTION: main 07-16 17:48:44.251: E/AndroidRuntime(14476): Process: com.edbeans.attendance, PID: 14476 07-16 17:48:44.251: E/AndroidRuntime(14476): android.database.sqlite.SQLiteException: no such table: users (code 1): , while compiling: SELECT * FROM users 07-16 17:48:44.251: E/AndroidRuntime(14476): at android.database.sqlite.SQLiteConnection.nativePrepareStatement(Native Method) 07-16 17:48:44.251: E/AndroidRuntime(14476): at android.database.sqlite.SQLiteConnection.acquirePreparedStatement(SQLiteConnection.java:889) 07-16 17:48:44.251: E/AndroidRuntime(14476): at android.database.sqlite.SQLiteConnection.prepare(SQLiteConnection.java:500) 07-16 17:48:44.251: E/AndroidRuntime(14476): at android.database.sqlite.SQLiteSession.prepare(SQLiteSession.java:588) 07-16 17:48:44.251: E/AndroidRuntime(14476): at android.database.sqlite.SQLiteProgram.(SQLiteProgram.java:58) 07-16 17:48:44.251: E/AndroidRuntime(14476): at android.database.sqlite.SQLiteQuery.(SQLiteQuery.java:37) 07-16 17:48:44.251: E/AndroidRuntime(14476): at android.database.sqlite.SQLiteDirectCursorDriver.query(SQLiteDirectCursorDriver.java:44) 07-16 17:48:44.251: E/AndroidRuntime(14476): at android.database.sqlite.SQLiteDatabase.rawQueryWithFactory(SQLiteDatabase.java:1314) 07-16 17:48:44.251: E/AndroidRuntime(14476): at android.database.sqlite.SQLiteDatabase.queryWithFactory(SQLiteDatabase.java:1161) 07-16 17:48:44.251: E/AndroidRuntime(14476): at android.database.sqlite.SQLiteDatabase.query(SQLiteDatabase.java:1032) 07-16 17:48:44.251: E/AndroidRuntime(14476): at android.database.sqlite.SQLiteDatabase.query(SQLiteDatabase.java:1200) 07-16 17:48:44.251: E/AndroidRuntime(14476): at com.edbeans.attendance.DataBaseHelper.query(DataBaseHelper.java:160) 07-16 17:48:44.251: E/AndroidRuntime(14476): at com.edbeans.attendance.AboutUs$2.onClick(AboutUs.java:74) 07-16 17:48:44.251: E/AndroidRuntime(14476): at android.view.View.performClick(View.java:4438) 07-16 17:48:44.251: E/AndroidRuntime(14476): at android.view.View$PerformClick.run(View.java:18422) 07-16 17:48:44.251: E/AndroidRuntime(14476): at android.os.Handler.handleCallback(Handler.java:758) 07-16 17:48:44.251: E/AndroidRuntime(14476): at android.os.Handler.dispatchMessage(Handler.java:95) 07-16 17:48:44.251: E/AndroidRuntime(14476): at android.os.Looper.loop(Looper.java:136) 07-16 17:48:44.251: E/AndroidRuntime(14476): at android.app.ActivityThread.main(ActivityThread.java:5017) 07-16 17:48:44.251: E/AndroidRuntime(14476): at java.lang.reflect.Method.invokeNative(Native Method) 07-16 17:48:44.251: E/AndroidRuntime(14476): at java.lang.reflect.Method.invoke(Method.java:515) 07-16 17:48:44.251: E/AndroidRuntime(14476): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:785) 07-16 17:48:44.251: E/AndroidRuntime(14476): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:601) 07-16 17:48:44.251: E/AndroidRuntime(14476): at dalvik.system.NativeStart.main(Native Method)
Code Sample My DataBaseHelper class
And here is my Code:
public class DataBaseHelper extends SQLiteOpenHelper{
String DB_PATH =null;
private static String DB_NAME ="edbeansData.db";
private SQLiteDatabase myDataBase;
private final Context myContext;
String type1 ="teacher";
public DataBaseHelper(Context context) {
super(context, DB_NAME, null, 3);
this.myContext = context;
DB_PATH="/data/data/"+context.getPackageName()+"/"+"databases/";
}
public void createDataBase() throws IOException{
boolean dbExist = checkDataBase();
//SQLiteDatabase db_Read = null;
if(dbExist){
//do nothing - database already exist
}else{
this.getReadableDatabase();
//this.close();
//db_Read=this.getReadableDatabase();
//db_Read.close();
try {
copyDataBase();
} catch (IOException e) {
throw new Error("Error copying database");
}
}
}
private boolean checkDataBase(){
SQLiteDatabase checkDB = null;
try{
String myPath = DB_PATH + DB_NAME;
checkDB = SQLiteDatabase.openDatabase(myPath, null, SQLiteDatabase.OPEN_READONLY);
}catch(SQLiteException e){
//database does't exist yet.
}
if(checkDB != null){
checkDB.close();
}
return checkDB != null ? true : false;
}
public void copyDataBase() throws IOException{
InputStream myInput = myContext.getAssets().open(DB_NAME);
String outFileName = DB_PATH + DB_NAME;
OutputStream myOutput = new FileOutputStream(outFileName);
byte[] buffer = new byte[1024];
int length;
while ((length = myInput.read(buffer))>0){
myOutput.write(buffer, 0, length);
}
myOutput.flush();
myOutput.close();
myInput.close();
}
public void openDataBase() throws SQLException{
//Open the database
String myPath = DB_PATH + DB_NAME;
myDataBase = SQLiteDatabase.openDatabase(myPath, null, SQLiteDatabase.OPEN_READONLY);
}
@Override
public synchronized void close() {
if(myDataBase != null)
myDataBase.close();
super.close();
}
@Override
public void onCreate(SQLiteDatabase db) {
//Log.e("abc","table create was called");
}
@Override
public void onUpgrade(SQLiteDatabase db, int oldVersion, int newVersion) {
}
//return cursor
public Cursor query(String table,String[] columns, String selection,String[] selectionArgs,String groupBy,String having,String orderBy){
return myDataBase.query("users", null, null, null, null, null, null);
}
}
## AboutUs.java class ##
public class AboutUs extends Activity {
/** Called when the activity is first created. */
Cursor c=null;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_aboutus);
// ActionBar actionBar = getActionBar();
// Enabling Up / Back navigation
// actionBar.setDisplayHomeAsUpEnabled(true);
Button button1 =(Button)findViewById(R.id.btnview);
button1.setOnClickListener(new OnClickListener() {
public void onClick(View v) {
Intent dbmanager = new Intent(getApplicationContext(),AndroidDatabaseManager.class);
startActivity(dbmanager);
}
});
((Button)findViewById(R.id.btninsert)).setOnClickListener(new View.OnClickListener(){
@Override
public void onClick(View v) {
DataBaseHelper myDbHelper = new DataBaseHelper(AboutUs.this);
try {
myDbHelper.createDataBase();
} catch (IOException ioe) {
throw new Error("Unable to create database");
}
try {
myDbHelper.openDataBase();
}catch(SQLException sqle){
throw sqle;
}
Toast.makeText(AboutUs.this, "Success", Toast.LENGTH_SHORT).show();
}
}
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