TMemDataSet.GetBlob Overload

Retrieves TBlob object for a field or current record when only its name or the field itself is known.

Name	Description
GetBlob(Field: TField)	Retrieves TBlob object for a field or current record when the field itself is known.
GetBlob(const FieldName: string)	Retrieves TBlob object for a field or current record when its name is known.