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Get max date from a varchar in SQL query!

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Last Modified: 2018-12-03
I need to get the max date from  a varchar of a table in format 103  dd/mm/YYYY

whats the query in sql
please you experts!
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Russ SuterSenior Software Developer
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Commented:
SELECT
  CONVERT(DATETIME, [columnName], 103) as MaxDate
FROM
  [tableName]
WHERE
  [columnName] IN
  (
  SELECT
    MAX([columnName])
  FROM
    [tableName]
  )

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Note, if two or more rows in the table share the exact same DATETIME value you will get more than one row using this method.
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Commented:
Maybe I am missing something but MAX() from varchar column containing the date in given format does not calculate the maximum date value.
Jim HornSQL Server Data Dude
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Most Valuable Expert 2013
Author of the Year 2015

Commented:
>I need to get the max date from  a varchar of a table in format 103
(1) Please give us a data mockup of what these varchar's are, as things can get ugly real quick.
(2) Just to state the obvious dates should be stored in date column data types and not as varchar's, as that invites errors to occur when data is entered in a non-date format, and then a later query attempts to convert the value to a date and then fails.

Author

Commented:
Thank you guys !
regards

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