DDNMB SAP (DD: Data records per extent (minimum/maximum number)) Structure details
Description: DD: Data records per extent (minimum/maximum number)
Structure field list including key, data, relationships and ABAP select examples
DDNMB 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: Data records per extent (minimum/maximum number)" 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_DDNMB TYPE DDNMB.
The DDNMB table consists of various fields, each holding specific information or linking keys about DD: Data records per extent (minimum/maximum number) data available in SAP. These include DSPACE (DD: Size of a database area), DSETNB (DD: Number of data records in an extent), DSETNBMAX (DD: Number of data records in an extent).. 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: W - System table, contents transportable via separate TR objectsDisplay/Maintenance via tcode SM30: Display/Maintenance Allowed but with Restrictions
SAP enhancement categories: Not classified
SAP DDNMB 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 |
| KATEGORIE | Size category | TABKAT | CHAR | 2 | TABKAT | ||||
| DSPACE | DD: Size of a database area | DBSPACE | NUMC | 10 | DBSPACE | ||||
| DSETNB | DD: Number of data records in an extent | DBDSETNB | NUMC | 10 | DBDSETNB | ||||
| DSETNBMAX | DD: Number of data records in an extent | DBDSETNB | NUMC | 10 | DBDSETNB |
| Key field | Non-key field |
How do I retrieve data from SAP structure DDNMB using ABAP code?
As DDNMB 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 DDNMB as there is no data to select.How to access SAP table DDNMB
Within an ECC or HANA version of SAP you can also view further information about DDNMB 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