sql - Calendar control date not known (ASP.Net) -

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sometimes have dates unknown, eg: won't know date month , year.

eg: --/dec/2015, date not known? how accept these kind of values?

any ideas on can stored on sql server database?

i store date in database. because date have benefits like:

  • calculation function dateadd , datediff.
  • you able sort on 1 column
  • index 1 column
  • when need year , month. use month , year

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