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A comment on Challenges students face when learning to work with relational databases and SQL. Parent comment

Re:Challenges students face when learning to work with relat... by layer8 on Sunday August 29, 2021 @07:29PM (#28351445)
The problem with NULL in SQL is that the semantics are inconsistent in complex ways. See for example https://vettabase.com/blog/what-does-null-mean-in-sql/.
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