google app engine - I need a query in GAE that return rows that dont contain null, means that are fullfilled -

google app engine - I need a query in GAE that return rows that dont contain null, means that are fullfilled -

  का चयन करें * प्रतिक्रिया से कहाँ text =! कोई भी     नूल , या तो काम नहीं करता है।  
 यह काम नहीं करता है ... तो मुझे यह प्रश्न कैसे लिखना चाहिए?   
 
  जीएई दस्तावेज़ीकरण से: ऐसी संस्थाओं के लिए क्वेरी करना संभव नहीं है, जो किसी दिए गए प्रॉपर्टी को अनुपलब्ध हैं। एक विकल्प एक निश्चित (मॉडलिंग) संपत्ति को किसी के कोई भी डिफ़ॉल्ट मान के साथ बनाने के लिए है, फिर संपत्ति मान के रूप में कोई भी व्यक्तियों के लिए एक फिल्टर बनाना।  
 आप निम्न परिणाम प्राप्त कर सकते हैं:  
  def notnulls (): यदि z.text]    यह db.GqlQuery ('सेलेक्ट * फीडबैक' से) में z के लिए वापसी की सूची फीडबैक ऑब्जेक्ट्स जहां पाठ फ़ील्ड कोई भी नहीं है यद्यपि इसके पास सभी फीडबैक ऑब्जेक्ट्स को लोड करने का अतिरिक्त ओवरहेड है।   

 


  







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