select query in sqlite android
There are SQL syntax problems and you'll need to use a Cursor
to retrieve query results, for example with rawQuery()
:
String selectQuery = "SELECT lastchapter FROM Bookdetails WHERE bookpath=?";Cursor c = db.rawQuery(selectQuery, new String[] { fileName });if (c.moveToFirst()) { temp_address = c.getString(c.getColumnIndex("lastchapter"));}c.close();
The logcat said it all, you've forgot spaces. To get data into the string:
String temp_address="nothing";String[] args = new String[] { fileName };Cursor cursor = sqLiteDatabase.rawQuery("SELECT lastchapter FROM Bookdetails WHERE bookpath=?", args);if (cursor.moveToFirst()){ temp_address = cursor.getString(cursor.getColumnIndex("lastchapter"));}cursor.close();
Correct your query with below: add space at WHERE
Cause
String selectQuery = "SELECT lastchapter FROM Bookdetails WHERE bookpath=? ";
Update: go with rawQuery()
becoz it's return Cursor
with results
String selectQuery = "SELECT lastchapter FROM Bookdetails WHERE bookpath=? "; Cursor c = db.rawQuery(selectQuery, new String[] { fileName }); if (c.moveToFirst()) { temp_address = c.getString(0); } c.close();
And for more information go to this: http://www.higherpass.com/android/tutorials/accessing-data-with-android-cursors/