First
Last updated
Last updated
The First()
function returns the first item in a list or concept set.
This function is NOT SQL compatible. For more information about SQL compatibility, see our documentation.
Returns the first item in the given list
or concept_set
.
Returns Unknown
if one of the parameter values is unknown or outside the common valid date boundaries.
Name | Type | Required | Description |
---|---|---|---|
list
List of elements of the same type
a list of values or elements of the same type.
concept_set
A list of concepts
a list of concepts