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sql remove duplicates based on column

SELECT s.siteName, s.siteIP, h.date
FROM sites s INNER JOIN
     (select h.*, row_number() over (partition by siteName order by date desc) as seqnum
      from history h
     ) h
    ON s.siteName = h.siteName and seqnum = 1
ORDER BY s.siteName, h.date
Source by stackoverflow.com #
 
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Tagged: #sql #remove #duplicates #based #column
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