IsNull

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1

This expression will return a replacement expression if the passed expression is NULL.

Function Parameters

Expression

Expression to test for a NULL value. If it is NULL the ReplacementValue expression will be returned.

  • Data Constant
  • Field reference
  • Function
  • Lookup reference

ReplacementValue

An expression to be returned if the Expression is null.

Possible children:

  • Data Constant
  • Field reference
  • Function
  • Lookup reference