ifelse merge and merge without duplicate columns

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孤街浪徒
孤街浪徒 2021-01-12 21:31

I have the following data frames

#Data to be matched
Data <- data.frame(
  Register = c(141 ,565, 1411, 141, 230, 230, 230, 423, 423,423,561),
  Name = c(&         


        
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