DD28J SAP (Internal structure for joins of views) Structure details
Description: Internal structure for joins of views
Structure field list including key, data, relationships and ABAP select examples
DD28J 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 "Internal structure for joins of views" 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_DD28J TYPE DD28J.
The DD28J table consists of various fields, each holding specific information or linking keys about Internal structure for joins of views data available in SAP. These include LTAB (Table Name), LFIELD (Field name), OPERATOR (Operator in a selection condition), RTAB (Table Name).. 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: Not classified
SAP DD28J 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 |
VIEWNAME | Name of SAP table view | VIEWNAME | CHAR | 30 | Assigned to domain | VIEWNAME | DVI | ||
LTAB | Table Name | DDVIEWJTAB | CHAR | 30 | Assigned to domain | AS4TAB | DTB | ||
LFIELD | Field name | DDVIEWJFLD | CHAR | 30 | Assigned to domain | FDNAME | DFD | ||
OPERATOR | Operator in a selection condition | VSOPERATOR | CHAR | 2 | VSOPERATOR | ||||
RTAB | Table Name | DDVIEWJTAB | CHAR | 30 | Assigned to domain | AS4TAB | DTB | ||
RFIELD | Field name | DDVIEWJFLD | CHAR | 30 | Assigned to domain | FDNAME | DFD | ||
SOURCE | Single-Character Indicator | CHAR1 | CHAR | 1 | CHAR1 | ||||
FRKTAB | Table Name | TABNAME | CHAR | 30 | Assigned to domain | AS4TAB | DTB | ||
FRKFIELD | Field Name | FIELDNAME | CHAR | 30 | Assigned to domain | FDNAME | DFD | ||
FRKDIR | Direction of Foreign Key Dependency | FORDIR | CHAR | 1 | FORDIR | ||||
VOPERATOR | Operator in a selection condition (screen field) | VOPERATOR | CHAR | 8 | VOPERATOR | ||||
JOPERATOR | DD: Join Operator; Example: INNER JOIN, LEFT OUTER JOIN | JOPERATOR | CHAR | 5 | JOPERATOR |
Key field | Non-key field |
How do I retrieve data from SAP structure DD28J using ABAP code?
As DD28J 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 DD28J as there is no data to select.How to access SAP table DD28J
Within an ECC or HANA version of SAP you can also view further information about DD28J 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