Range of Type
This type of field is kind of BLOB field intended to store pictures. It is able to get a picture in the bitmap native to the current OS and compress it into one of standard formats (JPG, TIFF, …).
Storage is the same as for BLOB Field.
This field always can be considered as Nullable because ZERO value in the ULONG-file can play role of NULL value.
This field type is represented at the API level by VPicture Class.
At SQL Level you can create such field using
CREATE TABLE T1( fldPicture Picture(512) );
You can use this field in any predicate expression, e.g.
SELECT * FROM T1 WHERE fldPicture IS NULL;