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Question 239 - DA0-001 discussion
A data analyst received a large amount of third-party data that needs to be joined with in-house data files. After the data is joined, the analyst notices three columns all contain dates. Which of the following should the analyst do to maintain data consistency?
A.
Append all date columns and parse the strings.
B.
Impute all three date columns and then merge.
C.
Merge all date columns and unify the format.
D.
Separate the columns into a table and merge.
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