title: swift request coredata and delete
body: <p>i would like to request all my core data where the "mhd" field >= the date of today. this code works fine:</p>
  
  <pre><code> func DatenAbrufen() {
  
      let calendar = NSCalendar.currentCalendar()
      let AktuellesDatum = calendar.startOfDayForDate(NSDate())
      let fetchRequest = NSFetchRequest(entityName: "LM_ITEMS")
      fetchRequest.predicate = NSPredicate(format: "mhd &gt;= %@", AktuellesDatum)
  
  
  
  
          if let fetchResults = managedObjectContext!.executeFetchRequest(fetchRequest, error: nil) as? [LM_ITEMS] {
              lebensmittel = fetchResults
          }
  }
  </code></pre>
  
  <p>how can i delete in this query all other data, where "mhd" is not >= date of today?</p>