Where Used List (Table) for SAP ABAP Data Element NULLABLE (Null values allowed)

#	Object Type	Object Name	Object Description	Package	Structure Package	Software Component

1	Table	DBFIELD - NULLABLE	Field description for database tables	SDIC	BASIS	SAP_BASIS
2	Table	DBFIELDL - NULLABLE	Field description for database tables	SDVI	BASIS	SAP_BASIS
3	Table	DBFTYPE - NULLABLE	DB fields with type and type string	SDIC	BASIS	SAP_BASIS
4	Table	DCIX031L - NULLABLE	Nametab Structure, Database Structure DDNTF	SDTB	BASIS	SAP_BASIS
5	Table	DCTX031L - NULLABLE	DD: Nametab fields with expanded flags	SDTB	BASIS	SAP_BASIS
6	Table	DD03D - NULLABLE	Dynpro fields for table fields	SEDD	BASIS	SAP_BASIS
7	Table	DDELEMENTINFO - NULLABLEDD	DD: Information of an Element in Selection List, Group By,	SDDL	BASIS	SAP_BASIS
8	Table	DDFIELD - NULLABLE	DB-relevant description of DD table fields	SDIC	BASIS	SAP_BASIS
9	Table	DDFIELDVARS - NULLABLE	DB-Relevant Description of DD Table Fields (with Variants)	SDIC	BASIS	SAP_BASIS
10	Table	DDFLG1 - NULLABLE	Flag byte 1 of nametab for field attributes	SDTB	BASIS	SAP_BASIS
11	Table	DDSTDFUNCINFO - NULLABLEDD	DD: Information on Standard Functions	SDDL	BASIS	SAP_BASIS
12	Table	RSDB_FIELDS - NULLABLE	Description of a DB Field	RSDL	RS_BW_STRUPAK	SAP_BW