SAP ABAP Table DDFIELD (DB-relevant description of DD table fields) is used by

• Class (87)
• Function Module (79)
• Interface (2)
• Program (82)
• Table (4)
• TTYP (2)
• TYPE (1)

#	Object Type	Object Name	Object Description	Package	Structure Package	Software Component
1	TTYP	HDB_T_DDFIELD	HDB_T_DDFIELD	HDB	APPL	SAP_APPL
2	TTYP	TDDFIELDS	TDDFIELDS	SCRR_DDIC	BASIS	SAP_BASIS