brayhampton8366 brayhampton8366
  • 14-02-2024
  • Computers and Technology
contestada

Given an items table with a nullable integer column named parent_id and ten rows total, which of the following is true?
1) The parent_id column cannot have NULL values.
2) The parent_id column can have NULL values.
3) The items table has a total of 20 rows.
4) The items table does not have a parent_id column.

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