Web14 jan. 2014 · i know how to remove duplicates, but not getting how to do it for more than one column. i tried this SELECT empno,date, COUNT(*) c FROM employees GROUP … Web2 jul. 2013 · Normally we use bellow method's to remove duplicate observations from the dataset. 1.Nodup(Proc Sort) 2.nodupkey(Proc Sort) 3.Disticnt(Proc Sql ) 4.First. and last …
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Web28 mrt. 2024 · 03-28-2024 10:28 AM. I want to remove duplicates from a table and keep the row with the most recent date. For example, when the values between the "bnf_name" and "wife_name" columns match on two different rows, I want to delete the row with the oldest date in the "verification date" column and keep the row with the most recent date. Web7 mrt. 2024 · The original DataFrame for reference: By default, .drop_duplicates will remove the second and additional occurrences of any duplicate rows when called: kitch_prod_df.drop_duplicates (inplace = True) In the above code, we call .drop_duplicates () on the kitch_prod_df DataFrame with the inplace argument set to True. Web30 jan. 2024 · and we want to remove the duplicates. Since the Set () constructor accepts an iterable as parameter ( new Set ( [iterable])) and returns a new Set object, we can do the following: const mySet = new … capable of thinking or acting for oneself