SAP ABAP Table DD12B (DD: Secondary Index Headers for Structured Objects) is used by

• Class (3)
• Program (3)
• Table (2)
• TTYP (1)

#	Object Type	Object Name	Object Description	Package	Structure Package	Software Component
1	Class	CL_DD_SOBJECT Method: ND_INDX_SET_GET	Dictionary Core BO	SDCBO	BASIS	SAP_BASIS
2	Class	CL_DD_SOBJECT Method: DELETE	Dictionary Core BO	SDCBO	BASIS	SAP_BASIS
3	Class	CL_DD_SOBJECT Method: ND_INDX_SET_PUT	Dictionary Core BO	SDCBO	BASIS	SAP_BASIS