Getting all records from sqlite android

Question

I am creating a database and I need to read all records from the database, but my program keeps crashing at this statement:

newWord= db.getAllRecords();

I assume there is an issue with getAllRecords(), as Eclipse indicates no errors.

 public Cursor getAllRecords() {
 db = dBHelper.getWritableDatabase();//obtains the writable database
return db.query(DATABASE_TABLE, new String[] { KEY_ROWID,KEY_WORD}, null, null, null,      null, null);//the query used to obtain all records form the table

} 

Any ideas?

Answer 1

Here is what I do to get all contents from a table..

public ArrayList<MyObject> getAllElements() {

    ArrayList<MyObject> list = new ArrayList<MyObject>();

    // Select All Query
    String selectQuery = "SELECT  * FROM " + MY_TABLE;

    SQLiteDatabase db = this.getReadableDatabase();
    try {

        Cursor cursor = db.rawQuery(selectQuery, null);
        try {

            // looping through all rows and adding to list
            if (cursor.moveToFirst()) {
                do {
                    MyObject obj = new MyObject();
                    //only one column
                    obj.setId(cursor.getString(0));

                    //you could add additional columns here..

                    list.add(obj);
                } while (cursor.moveToNext());
            }

        } finally {
            try { cursor.close(); } catch (Exception ignore) {}
        }

    } finally {
         try { db.close(); } catch (Exception ignore) {}
    }

    return list;
}

Answer 2

public void printTableData(String table_name){
    SQLiteDatabase db = getReadableDatabase();

    Cursor cur = db.rawQuery("SELECT * FROM " + table_name, null);

    if(cur.getCount() != 0){
        cur.moveToFirst();

        do{
            String row_values = "";

            for(int i = 0 ; i < cur.getColumnCount(); i++){
                row_values = row_values + " || " + cur.getString(i);
            }

            Log.d("LOG_TAG_HERE", row_values);

        }while (cur.moveToNext());
    }
}