· NULL VS UNKNOWN: GREAT DEBATE · DEALING WITH NULLS · ANSI STANDARD AND NULL FUNCTIONS IN COLUMNS · NULL HANDLING QUICK SUMMARY · CONCLUSION The handling of NULL — or “unknown” — values has long been ...
NaN stands for Not a Number. NaN is used to represent missing values in numeric data. It is mainly used in NumPy and Pandas when a numeric value is missing or undefined. NaN is a special ...
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