DATABASE FUNDAMENTALS
BASICS OF BIG DATA
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Given an attribute table shown below, which stores the basic information of attribute a, including the row identifier of instance row ____ id, values of attribute values (a) and class labels of instances c.(Table is not given here)Which of the following attribute will first provide the pure subset?
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Humidity
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Outlook
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Wind
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None of the mentioned
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Explanation:
Detailed explanation-1: -Attribute data can be store as one of five different field types in a table or database: character, integer, floating, date, and BLOB. The character property (or string) is for text based values such as the name of a street or descriptive values such as the condition of a street.
Detailed explanation-2: -[data structures] A database or tabular file containing information about a set of geographic features, usually arranged so that each row represents a feature and each column represents one feature attribute.
Detailed explanation-3: -The columns of the table are called fields and the rows are called records. Each record of the attribute table corresponds to one feature geometry of the layer.
There is 1 question to complete.