The following request executes HELP COLUMN on all columns of two separate tables.
HELP COLUMN d.*, transaction_detail.*;
Result:
*** Help information returned. 8 rows. *** Total elapsed time was 1 second. Column Name Type Nullable Format --------------------------- ---- -------- ------------------------- transaction_header_key I Y -(10)9 vendor_key I Y -(10)9 item_key I Y -(10)9 stuff CF Y X(300) transaction_header_key I Y -(10)9 vendor_key I Y -(10)9 item_key I Y -(10)9 stuff CF Y X(300)