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data_concept:null_value [2023/02/17 12:57] peter |
data_concept:null_value [2024/03/08 13:33] (current) |
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A null value is a [[data_value|data value]] that is void. | A null value is a [[data_value|data value]] that is void. | ||
- | ===Synonym(s)=== | + | ===Synonyms=== |
- | Nil\\ | + | |
- | Void | + | |
- | ===Notes(s)=== | + | ===Notes=== |
- | Example of a null value is missing zipcode of an adress. | + | |
- | A null value is not the same as 0 (zero). | + | |
===Relation(s)=== | ===Relation(s)=== | ||
- | A null value is subordinate to a [[data_value|data value]].\\ | + | |Null value| is child of |[[data_value|data value]]| |
- | A null value is part of a [[value domain|value domain]]. | + | |Null value| is part of a |[[value domain|value domain]]| |
+ | |||
+ | {{tag> | ||