Unix Timestamp to Datetime Conversion

  • Hi,

    I have a table with one of the column [last seen] nvarchar datatype and data imported from .csv file. Data in the [last seen] column is in Unix Timestamp in MilliSecs format [1575944000000]

    I need to convert it from unix timestamp to datetime format.


    Tried changing the datatype of the column from nvarchar to datetime and getting below error:

    - Unable to modify table. Conversion failed when converting date and/or time from character string.


    Can someone please give an idea\solution to fix this issue. Thanks in advance.

  • SELECT DATEADD(SECOND,1575944000000/1000,'1970-01-01 00:00:00.000')

    Does this work?

    On two occasions I have been asked, "Pray, Mr. Babbage, if you put into the machine wrong figures, will the right answers come out?" ... I am not able rightly to apprehend the kind of confusion of ideas that could provoke such a question.
    —Charles Babbage, Passages from the Life of a Philosopher

    How to post a question to get the most help http://www.sqlservercentral.com/articles/Best+Practices/61537

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