DD42V_EXT SAP (DD: Key Field of a Table Incl. Further Information) Structure details
Description: DD: Key Field of a Table Incl. Further Information
Structure field list including key, data, relationships and ABAP select examples
DD42V_EXT is a standard SAP Structure so does not store data like a database table does. It can be used to define the fields of other actual tables or to process "DD: Key Field of a Table Incl. Further Information" Information within sap ABAP programs.
This is done by declaring abap internal tables, work areas or database tables based on this Structure. These can then be used to store and process the required data appropriately.
i.e. DATA: wa_DD42V_EXT TYPE DD42V_EXT.
The DD42V_EXT table consists of various fields, each holding specific information or linking keys about DD: Key Field of a Table Incl. Further Information data available in SAP. These include TYPENAME (Name of table type), SECKEYNAME (Name of Secondary Key for Table Type), KEYFDPOS (Position of key component in key of table type), ROWTYPEPOS (Position of the field in the table).. See below for full list along with technical details, documentation, text table, check tables, foreign key relationships, conversion routines, relevant tcodes and example ABAP select code etc. .
Delivery Class:Display/Maintenance via tcode SM30: Display/Maintenance Allowed but with Restrictions
SAP enhancement categories: Cannot Be Enhanced
SAP DD42V_EXT structure fields - Full list of fields found in SAP data dictionary
| Field | Description | Data Element | Data Type | length (Dec) | Check table | Conversion Routine | Domain Name | MemoryID | SHLP |
| TYPENAME | Name of table type | TTYPENAME | CHAR | 30 | Assigned to domain | TTYPENAME | TTYP | ||
| SECKEYNAME | Name of Secondary Key for Table Type | SECKEYNAME | CHAR | 30 | SECKEYNAME | ||||
| KEYFDPOS | Position of key component in key of table type | KEYFDPOS | NUMC | 4 | AS4POS | ||||
| ROWTYPEPOS | Position of the field in the table | TABFDPOS | NUMC | 4 | AS4POS | ||||
| KEYFIELD | Key component for table types | KEYFIELD | CHAR | 132 | KEYFDNAME | ||||
| SOURCEPOS | Position of the field in the table | TABFDPOS | NUMC | 4 | AS4POS |
| Key field | Non-key field |
How do I retrieve data from SAP structure DD42V_EXT using ABAP code?
As DD42V_EXT is a database structure and not a table it does not store any data in the SAP data dictionary. The ABAP SELECT statement is therefore not appropriate and can not be performed on DD42V_EXT as there is no data to select.How to access SAP table DD42V_EXT
Within an ECC or HANA version of SAP you can also view further information about DD42V_EXT and the data within it using relevant transactions such asSE11 (ABAP Dictionary Maintenance)
SM30 (Maintain Table Data)
SE80 (Object Navigator)
SE16 (Data Browser).
Search for further information about these or an SAP related objects