[mapguide-users] Selecting null or empty values using maestro

[BMason]

Is there a way to use maestro to select or filter all records that have null
or empty values? I am trying to select all records in a point shapefile
that have null values for one field. thanks



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[Jackie Ng]

FDO "is null" expressions are of the form:

PROPERTY_NAME NULL

For example, if you want to filter out records where FEATURE_NAME is null,
the expression would be:

NOT FEATURE_NAME NULL

- Jackie



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