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CSV Null Representation Challenges

Yapay zekadan makale özeti

CSV Basics: CSV format uses commas to separate values in rows
Values must be enclosed in double quotes
RFC 4180 codifies core CSV rules
Null Concept in RDF: CSV can represent logical assertions like RDF triples
Each row indicates property values of a single resource
Null represents "no value" for properties without explicit specification
String Null Representation: Empty string can be represented as quoted empty string
This approach requires special semantics for quoted values
This approach is considered distateful by Repici
Alternative Solutions: Pushing null to encoding level could work but cause compatibility issues
Excel could replace empty strings with null during CSV saving
Lexical null representation may be only viable solution for simple CSV format