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Etymology
Etymology
dare (lat.) = to give > datum = that is given > data (pl.) = facts of information
Data Structure
Data Structure
Unstructured Data
Unstructured Data
the vast majority of data of everday life
can technically only be accessed by machine learning and AI
Semi-Structured Data
Semi-Structured Data
a somewhat artifical part of everday life
can technically be accessed with NoSQL databases or document databases
Structured Data
Structured Data
a rather small and somewhat artifical part of life
can technically be saved and queried in relational SQL databases easily
Data Type
Data Type
quantitative
numerical
number that can be calculated with
continious
interval
can be counted
qualitative
categorical
can be observed
nominal
unordered names
ordinal
names that can be be ordered
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