Description: Returns a field value from the parser's current SQL query.
Calling convention: CIP_GetFieldValue("FieldName": String): Variant
Parameters:
FieldName: non-empty field name present in the current query dataset; matching is case-insensitive.
Returns: Current field value as Variant. Missing parser/query context, empty input, or unknown field raises an exception.
Availability: Default only during calculations that expose a current SQL query.
Example:
FieldValue := CIP_GetFieldValue("DATA_ID");