mysql - Add all the columns of a consult in SQL -

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मेरे पास कॉलम के साथ एक टेबल है 

  [a1, a2, a3, a4, a5 .... a]   
 सभी मान संख्यात्मक होते हैं और मुझे एक सलाह चाहिए जो देता है:  
  [a1, a2, a3, a4, a5 .... a, s]   
 कहां एस = a1 + a2 + a3 + ... + a  
 एस गणना में स्तंभ नाम निर्दिष्ट किए बिना ऐसा करना संभव है?  
 वैसे भी मैं सबसे अच्छा समाधान का उपयोग कैसे कर सकता हूं?  
 पहले से धन्यवाद   
 
 
  SELECT a1, a2, a3, ..., a, (a1 + a2 + ... + ए) एस एस आपके कॉलम से

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