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POSqlite database path is not working
 

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  1. POSqlite database path is not working
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    <p>I am trying to use sqlite database in my application. This is the problem while running </p> <pre> 07-26 18:03:10.374: E/AndroidRuntime(1347): FATAL EXCEPTION: main 07-26 18:03:10.374: E/AndroidRuntime(1347): android.database.sqlite.SQLiteException: no such table: QUESTIONS (code 1): , while compiling: SELECT * FROM QUESTIONS 07-26 18:03:10.374: E/AndroidRuntime(1347): at android.database.sqlite.SQLiteConnection.nativePrepareStatement(Native Method) 07-26 18:03:10.374: E/AndroidRuntime(1347): at android.database.sqlite.SQLiteConnection.acquirePreparedStatement(SQLiteConnection.java:882) 07-26 18:03:10.374: E/AndroidRuntime(1347): at android.database.sqlite.SQLiteConnection.prepare(SQLiteConnection.java:493) 07-26 18:03:10.374: E/AndroidRuntime(1347): at android.database.sqlite.SQLiteSession.prepare(SQLiteSession.java:588) 07-26 18:03:10.374: E/AndroidRuntime(1347): at android.database.sqlite.SQLiteProgram.(SQLiteProgram.java:58) 07-26 18:03:10.374: E/AndroidRuntime(1347): at android.database.sqlite.SQLiteQuery.(SQLiteQuery.java:37) 07-26 18:03:10.374: E/AndroidRuntime(1347): at android.database.sqlite.SQLiteDirectCursorDriver.query(SQLiteDirectCursorDriver.java:44) 07-26 18:03:10.374: E/AndroidRuntime(1347): at android.database.sqlite.SQLiteDatabase.rawQueryWithFactory(SQLiteDatabase.java:1314) 07-26 18:03:10.374: E/AndroidRuntime(1347): at android.database.sqlite.SQLiteDatabase.rawQuery(SQLiteDatabase.java:1253) 07-26 18:03:10.374: E/AndroidRuntime(1347): at com.db.DBAdapter.getQuestionSet(DBAdapter.java:143) 07-26 18:03:10.374: E/AndroidRuntime(1347): at com.example.test_question.MainActivity.getQuestionSetFromDb(MainActivity.java:45) 07-26 18:03:10.374: E/AndroidRuntime(1347): at com.example.test_question.MainActivity.onClick(MainActivity.java:75) 07-26 18:03:10.374: E/AndroidRuntime(1347): at android.view.View.performClick(View.java:4084) 07-26 18:03:10.374: E/AndroidRuntime(1347): at android.view.View$PerformClick.run(View.java:16966) 07-26 18:03:10.374: E/AndroidRuntime(1347): at android.os.Handler.handleCallback(Handler.java:615) 07-26 18:03:10.374: E/AndroidRuntime(1347): at android.os.Handler.dispatchMessage(Handler.java:92) 07-26 18:03:10.374: E/AndroidRuntime(1347): at android.os.Looper.loop(Looper.java:137) 07-26 18:03:10.374: E/AndroidRuntime(1347): at android.app.ActivityThread.main(ActivityThread.java:4745) 07-26 18:03:10.374: E/AndroidRuntime(1347): at java.lang.reflect.Method.invokeNative(Native Method) 07-26 18:03:10.374: E/AndroidRuntime(1347): at java.lang.reflect.Method.invoke(Method.java:511) 07-26 18:03:10.374: E/AndroidRuntime(1347): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:786) 07-26 18:03:10.374: E/AndroidRuntime(1347): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:553) 07-26 18:03:10.374: E/AndroidRuntime(1347): at dalvik.system.NativeStart.main(Native Method) </pre> <p>This is the code</p> <pre><code>public class DBAdapter extends SQLiteOpenHelper { protected static final String TAG = "DataAdapter"; private static String DB_NAME = "mydb.sqlite"; private SQLiteDatabase myDatabase; private static Context myContext; private static String DB_PATH ="/data/data/com/databases/"; public DBAdapter(Context context) { super(context, DB_NAME, null, 1); // TODO Auto-generated constructor stub this.myContext = context; } /** * Creates a empty database on the system and rewrites it with your own * database. * */ public void createDataBase() throws IOException { boolean dbExist = checkDataBase(); if (!dbExist) { // By calling this method and empty database will be created into // the default system path // of your application so we are gonna be able to overwrite that // database with our database. this.getReadableDatabase(); try { copyDataBase(); } catch (IOException e) { throw new Error(e.toString()); } } } /** * Check if the database already exist to avoid re-copying the file each * time you open the application. * @return true if it exists, false if it doesn't */ 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; } /** * Copies your database from your local assets-folder to the just created * empty database in the system folder, from where it can be accessed and * handled. This is done by transfering bytestream. * */ private void copyDataBase() throws IOException { // Open your local db as the input stream InputStream myInput = myContext.getAssets().open(DB_NAME); // Path to the just created empty db String outFileName = DB_PATH + DB_NAME; // Open the empty db as the output stream OutputStream myOutput = new FileOutputStream(outFileName); // transfer bytes from the inputfile to the outputfile byte[] buffer = new byte[1024]; int length; while ((length = myInput.read(buffer)) &gt; 0) { myOutput.write(buffer, 0, length); } // Close the streams 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(); } public List&lt;Question&gt; getQuestionSet(int numQ) { List&lt;Question&gt; questionSet = new ArrayList&lt;Question&gt;(); Cursor c = myDatabase.rawQuery("Select * from questions",null); while (c.moveToNext()) { Question q = new Question(); q.setSolution(c.getString(0)); q.setOption3(c.getString(1)); q.setOption2(c.getString(2)); q.setOption1(c.getString(3)); q.setAnswer(c.getString(4)); q.setQuestion(c.getString(5)); questionSet.add(q); } return questionSet; } @Override public void onCreate(SQLiteDatabase db) { // TODO Auto-generated method stub } @Override public void onUpgrade(SQLiteDatabase db, int oldVersion, int newVersion) { // TODO Auto-generated method stub Log.w(TAG, "Upgrading database from version " + oldVersion + " to " + newVersion + ", which will destroy all old data"); onCreate(db); } </code></pre> <p>Thanks for help</p>
    singulars
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. PTQuestion
    1. USTasneem
    1. USTasneem
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    1. PL
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      1. LTLinked
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. PO
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      1. PTAnswer
    1. This table or related slice is empty.
    1. COMaybe You are trying to open a database before it is generated. Please show Your code
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      1. POSqlite database path is not working
      1. USOpiatefuchs
    2. COhttp://stackoverflow.com/questions/16640604/cant-open-database-from-assets-folder-android/16644431#16644431
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      1. POSqlite database path is not working
      1. USMehmet Emre
    3. COuse https://github.com/jgilfelt/android-sqlite-asset-helper
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      1. POSqlite database path is not working
      1. USSelvin
 

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