How to delete all calendar events which are starting with equal text without deleting other calendar events?

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http://stackoverflow.com – The link "Delete calendar entries" solved my problem deleting all entries in the calendar. Take a look at the code: Cursor cursor; cursor = resolver.query(eventsUri, new String[]{ "_id" }, "calendar_id=" + calendarId, null, null); while(cursor.moveToNext()) { long eventId = cursor.getLong(cursor.getColumnIndex("_id")); resolver.delete(ContentUris.withAppendedId(eventsUri, eventId), null, null); } But I want to delete only calendar events starting with an equal text in the description column. Notice: The description only starts with an equal text. I think the problem is at fo (HowTos)