Which field will be used to populate the field if the productName and product:d fields have values for a given event?

The correct answer is B. Both field values will be used and the product INFO field will become a multivalue field for the. The coalesce function is an eval function that takes an arbitrary number of arguments and returns the first value that is not null. A null value means that the field has no value at all, while an empty value means that the field has a value, but it is "" or zero-length. The…

Creating and Managing Fields

Question

Options

A| eval productINFO=coalesco(productName,productid)
BBoth field values will be used and the product INFO field will become a multivalue field for the
CThe value for the productName field because it appears first.
DNeither field value will be used and the field will be assigned a NULL value for the given event.
EThe value for the field because it appears second.

How the community answered

(39 responses)

B
92% (36)
C
3% (1)
D
5% (2)

Explanation

The coalesce function is an eval function that takes an arbitrary number of arguments and returns the first value that is not null. A null value means that the field has no value at all, while an empty value means that the field has a value, but it is "" or zero-length. The coalesce function can be used to combine fields that have different names but represent the same data, such as IP address or user name. The coalesce function can also be used to rename fields for clarity or

Topics

#Multivalue fields#Field creation#Field population#Data types

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