A SQL where clause expression that limits the set of features for which labels will be generated and placed. This is a SQL where clause that can refer to the attributes of the feature. For example:

  • "" (no limitations)

  • "NAME LIKE 'A%'" (Only label features with NAME attribute values starting with 'A')

  • "(LENGTH CAPACITY) and (TYPE = 1)" (Only label features whose attributes satisfy the SQL condition)

The default value is "" which will allow all features in the data source and extent to be labeled.