sql - Select with grouping in MySQL -

मेरे पास 2 टेबल हैं:

'pay'

  | id_tax | मूल्य | id_currency | -------------------------- | 1 | 100 | 12 | | 1 | 200 | 12 | | 1 | 300 | 13 | | 2 | 200 | 12 | | 2 | 200 | 12 | --------------------------    'दर'  
  | id_currency | दर | ------------------ | 12 | 1 | | 13 | 6,12 | ------------------    इस में SQL क्वेरी का क्या परिणाम होगा?  
  | id_tax | मूल्य | ----------------------------- | 1 | 100 * 1 + 200 * 1 + 300 * 6,12 | | 2 | 200 * 1 + 200 * 1 | -----------------------------     
 <पूर्व>  SELECT id_tax, SUM (मान * दर) से भुगतान पी जॉइन रेट आर पर r.id_currency = p.id_currency GROUP BY id_tax   < / div> 

 


  







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