SAP ABAP Table/Structure Field DDFIELD - NULLABLE (DDFIELD) is used by

• Class (20)
• Function Module (9)
• Program (20)

#	Object Type	Object Name	Object Description	Package	Structure Package	Software Component
1	Program	LRSDU_PART_MSSF01	Include LRSDU_PART_ORAF01	RSMSS	RS_BW_STRUPAK	SAP_BW
2	Program	RADISTE0	DD: Standard pool of elementary conversion steps	SICN	BASIS	SAP_BASIS
3	Program	RD5GTTXT	Models for SQL/ABAP Scripts	SDIC	BASIS	SAP_BASIS
4	Program	RSDRH_MSSQL_ROUTINES	MSSQL: DB-dependent routines for processing the hierarchy	RSMSS	RS_BW_STRUPAK	SAP_BW
5	Program	RUTCHKDF	DD Check: NOT NULL Fields Without Default	SDUT	BASIS	SAP_BASIS
6	Program	RUTNULL	CHECK: Make all fields NOT NULL without DEFAULT -->> NULLABLE	SDUT	BASIS	SAP_BASIS
7	Program	SDB2F001	DD: Include mit FORMS für ALTER TABLE	SDIC	BASIS	SAP_BASIS
8	Program	SDB2FADA	Forms for Database Access to SQL Database	SADA	BASIS	SAP_BASIS
9	Program	SDB2FDB4	SDB2FDB4	SDB4	BASIS	SAP_BASIS
10	Program	SDB2FDB6	Catalog Modifications for DB2 Universal Database	SDB6	BASIS	SAP_BASIS
11	Program	SDB2FHDB	Dictionary port HDB	SHDB	BASIS	SAP_BASIS
12	Program	SDB2FINF	FORMs for ORACLE Database Access	SINF	BASIS	SAP_BASIS
13	Program	SDB2FIUC	Dictionary port HDB	CNV_IUUC_REPLICATION	DMIS	DMIS
14	Program	SDB2FMSS	FORMS for Database Access on MS SQL Server	SMSS_DDIC	BASIS	SAP_BASIS
15	Program	SDB2FORA	FORMs for ORACLE Database Access	SDIC	BASIS	SAP_BASIS
16	Program	SDB2FREF	FORMs for ORACLE Database Access	SDIC	BASIS	SAP_BASIS
17	Program	SDB2FSYB	DDL schemas for Sybase	SSYB	BASIS	SAP_BASIS
18	Program	SDB8FDB2	DB2-z/OS: Catalog modifications (<= v8.1)	SDB2	BASIS	SAP_BASIS
19	Program	SDB9FDB2	DB2-z/OS: Catalog modifications (>= v9.1)	SDB2	BASIS	SAP_BASIS
20	Program	SDBXTEST	Test of SDBx - Function Groups, Generating DDL	SDIC	BASIS	SAP_BASIS