DDLCH SAP (Logical Channel Info from the R/3 Repos. - Standard Version) Structure details

Dictionary Type: Structure
Description: Logical Channel Info from the R/3 Repos. - Standard Version




ABAP Code to SELECT data from DDLCH
Related tables to DDLCH
Access table DDLCH




Structure field list including key, data, relationships and ABAP select examples

DDLCH 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 "Logical Channel Info from the R/3 Repos. - Standard Version" 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_DDLCH TYPE DDLCH.

The DDLCH table consists of various fields, each holding specific information or linking keys about Logical Channel Info from the R/3 Repos. - Standard Version data available in SAP. These include LDEVICE (Logical type of an ABAP/4 Repository channel), LMODUS (DD: Write mode of a logging channel), LFORMAT (Definition of the data format), LID (Logical channel address).. 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 DDLCH 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
LNAMEDD: Name of a log output channel CHANLNAMECHAR255CHAR255
LDEVICELogical type of an ABAP/4 Repository channel CHANLTYPECHAR1CHANLTYPE
LMODUSDD: Write mode of a logging channel CHANMODCHAR1CHANMOD
LFORMATDefinition of the data format CHANFORMCHAR1CHANFORM
LIDLogical channel address CHANLIDINT410SYST_SHORT
LSTATEStatus of an ABAP/4 Repository channel CHANSTATECHAR1CHANSTATE
LANG1Language selected for ABAP/4 Repository channel CHANLANG1CHAR1CHAR001
LANG2Substitute language for the ABAP/4 Repository channel CHANLANG2CHAR1CHAR001
LLENGTHLogical block length for an ABAP/4 Repository channel CHANLENGTHINT410SYST_SHORT
LMAXBUFMaximum number of buffered blocks or lines CHANMAXBUFINT410SYST_SHORT
LBUFNumber of blocks or lines actually buffered CHANBUFINT410SYST_SHORT
LEVELPriority of the data in an ABAP/4 Repository channel CHANLEVELINT410SYST_SHORT

Key field Non-key field



How do I retrieve data from SAP structure DDLCH using ABAP code?

As DDLCH 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 DDLCH as there is no data to select.

How to access SAP table DDLCH

Within an ECC or HANA version of SAP you can also view further information about DDLCH and the data within it using relevant transactions such as

SE11 (ABAP Dictionary Maintenance)
SM30 (Maintain Table Data)
SE80 (Object Navigator)
SE16 (Data Browser).


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