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Returns True if the argument contains missing data values, and False if the argument is not Null. Often applied to a column of data to test for Null values. Category: logical Syntax:
Returns: BooleanColumn Context Filtering: ✓ Yes

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Parameters

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Validation

  • Minimum parameters: 1
  • Maximum parameters: 1

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Examples

Returns False for rows where sales data exists and True for rows where there is no data.
Returns True when no start and end date is provided in a Date Range parameter.
Last modified on March 13, 2026