Question

I want to get a row and this row have 2 columns which named username and password my code is here:

String selection = PROFILE_COLUMN_USERNAME + " = '" + userName+ "' AND " +PROFILE_COLUMN_PASSWORD + " = '" + password + "'";
Cursor cursor = database.query(TABLE_NAME, new String[] {PROFILE_COLUMN_USERNAME, PROFILE_COLUMN_PASSWORD }, selection,null, null, null, null);

I got a sample data like username = erdem and password= c on my db but when i write this sample and write to get username like this:

String s =cursor.getString(cursor.getColumnIndex(PROFILE_COLUMN_USERNAME));

it doesn’t work. Why?

Answer 1

Try something like below : Here “path_on_server” is the name of the column in the DB table whose value is being extracted. You can change it to your table’s column name.

        String query = "some query";
        Cursor c = newDB.rawQuery(query, null);

        if (c != null) {
            if (c.moveToFirst()) {
                do {
                    mPathOnServer = c.getString(c
                            .getColumnIndex("path_on_server"));
                } while (c.moveToNext());
            }
        }
    } catch (SQLiteException se) {
        Log.e(getClass().getSimpleName(),
                "Could not extract information from DB");
    }