tsql - Finding the SUM of values of a column of all records in sql 2005 -


मैं कॉलम weight में मानों के SUM को ढूंढना चाहता हूं । मुझे कॉलम नाम में से किसी एक कॉलम में सामान्य मान के साथ पहचाने जाने वाले सभी रिकॉर्ड्स के लिए यह राशि चाहिए इसके अलावा, मैं उन अभिलेखों पर विचार करना चाहता हूं जिनके पास कॉलम प्रकार में कुछ निश्चित मूल्य है।

नाम का वजन प्रकार
1 $ 12.00 ए
2 $ 7.00 बी 2 2 $ 7.00 ए 1 1 $ 1.00 सी
2 $ 7.00 बी
1 $ 1.00 सी
2 $ 7.00 बी 1 1 $ 7.00 बी 2 2 $ 7.00 C
2 $ 7.00 बी < Br>

मुझे नाम 2 के लिए कुल वजन चाहिए, प्रकार ए और बी के लिए। इसके लिए केवल एक subquery लिखा जा सकता है या केवल पाशन हो सकता है। टीएनएक्स।

यह वास्तव में ओपी प्रश्न के उन व्याख्याओं पर निर्भर करता है, जो मेरे लिए थोड़ा अस्पष्ट है लेकिन इसे एक प्रयास करें: 

  SELECT SUM (वज़न) से MyTable WHERE नाम = 2 और प्रकार IN ('ए', 'बी', 'सी')

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