sql - How to get the maximum values in one column for each value of another column? -

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मुझे निम्नलिखित तालिका में अधिकतम मान प्रति ITEM वाले आइटम की आवश्यकता है :

इनपुट तालिका: 

  मान | आइटम 1 | ए 2 | बी 3 | सी 4 | ए 5 | बी 6 | सी 7 | ई   
  वांटेड परिणाम:   
  मूल्य | आइटम 4 | ए 5 | बी 6 | सी 7 | ई    
 
 
  चुनें आइटम, मान, अधिकतम वैल्यू = (चुनें MAX (t2। VALUE) से तालिका नाम टी 2 जहां टी.आईटीम = टी 2.आईटीम) से तालिकानाम   
  
 या, यदि आप सभी रिकॉर्ड नहीं चाहते हैं, तो  का उपयोग करें समूह :  <पूर्व>  आइटम का चयन करें आइटम, अधिकतम वैल्यू = अधिकतम (VALUE) से तालिकानाम टी ग्रुप आइटम

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