Posts by valdeir Santana • 31 points

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  A: When should we allow a column of a table from a database to accept NULL?

  I see with good eyes the use of Null, it has its place, beyond the issue of saving bits, even if it is extremely small, what draws my attention to the use of null in a field is with respect to avoid…

  database modeling typing null

  answered 8 years, 8 months ago valdeir Santana 31