remove view duplicate data in sql database -

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  SELECT टिकट_आईडी, धागा_प्रकार, ost_ticket_thread से where thread_type = 'एम'   
 यह मेरा एसक्यूएल स्टेटमेंट है नीचे की तरह एसक्यूएल स्टेटमेंट से परिणाम।  
  ----------------------- | ticket_id | thread_type | ----------------------- | 4 | एम | | 4 | एम | | 5 | एम | -----------------------   
 मैं उसी ticket_id और thread_type के बिना डेटा को कैसे देखना चाहता हूं? मैंने  ग्रुप द्वारा  स्टेटमेंट किया है लेकिन मुझे एक समस्या का सामना करना पड़ता है जब मैं सभी टिकट_आईडी की गणना करना चाहता हूं यह 2 होना चाहिए। लेकिन यह 3 लौटता है।   
 
 
 कोशिश करें  GROUP BY :  
  SELECT टिकट_आईडी, धागा_प्रकार से ost_ticket_thread WHERE धागा_प्रकार = 'एम' ग्रुप द्वारा टिकट_आईडी, धागा_प्रकार   
  OR   
 का प्रयोग करें  DISTINCT :  
  का चयन करें टिकट टिकट_आईडी, धागा_प्रकार से ost_ticket_thread जहां thread_type = 'M'   
 परिणाम: < / P> 
  TICKET_ID THREAD_TYPE 4 M 5 M   
 नमूना परिणाम।  
  संपादित करें:   
 गिनती प्राप्त करने के लिए:  <प्री>  SELECT टिकट_आईडी, थ्रेड_प्रकार, COUNT (टिकट_आईडी) ost_ticket_thread से गणना के रूप में धागा_प्रकार = 'एम' ग्रुप द्वारा ticket_id, thread_type   
 परिणाम:  
  TICKET_ID THREAD_TYPE COUNT 4 एम 2 5 एम 1

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