ABAP Select data from SAP table CDMVCUI5NGNODE into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP CDMVCUI5NGNODE table and store it within an internal table, including using the newer @DATA inline declaration methods. It also shows you various ways to process this data using ABAP work area, inline declaration or field symbols including executing all the relevant CONVERSION_EXIT routines specific to CDMVCUI5NGNODE. See here for more generic Select statement tips.

Sometimes data within SAP is stored within the database table in a different format to what it is displayed to the user. These input/output conversation FM routines are what translates the data between the two formats.

There is also a full declaration of the CDMVCUI5NGNODE table where each field has a char/string type for you to simply copy and paste. This allows you to use processing that is only available to these field types such as the CONCATENATE statement.

DATA: IT_CDMVCUI5NGNODE TYPE STANDARD TABLE OF CDMVCUI5NGNODE,
      WA_CDMVCUI5NGNODE TYPE CDMVCUI5NGNODE,
      GD_STR TYPE STRING.

DATA: lo_typedescr type REF TO cl_abap_typedescr.
DATA: lv_fieldname type fieldname.

FIELD-SYMBOLS: <FIELD> TYPE any.
FIELD-SYMBOLS: <CDMVCUI5NGNODE> TYPE CDMVCUI5NGNODE.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_CDMVCUI5NGNODE.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM CDMVCUI5NGNODE
  INTO TABLE IT_CDMVCUI5NGNODE.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CDMVCUI5NGNODE
*  INTO TABLE @DATA(IT_CDMVCUI5NGNODE2).
*--Further methods of using ABAP code to  select data from SAP database tables

*You can also declare the header/work area using the in-line DATA declaration method
READ TABLE IT_CDMVCUI5NGNODE INDEX 1 INTO DATA(WA_CDMVCUI5NGNODE2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_CDMVCUI5NGNODE ASSIGNING <CDMVCUI5NGNODE>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<CDMVCUI5NGNODE>-MANDT = 1.
<CDMVCUI5NGNODE>-UI5NETWORKGRAPHNODE = 1.
<CDMVCUI5NGNODE>-UI5NETWORKGRAPHTITLE = 1.
<CDMVCUI5NGNODE>-UI5NETWORKGRAPHDESCRIPTION = 1.
<CDMVCUI5NGNODE>-UI5NETWORKGRAPHGROUP = 1.

ENDLOOP.

LOOP AT IT_CDMVCUI5NGNODE INTO WA_CDMVCUI5NGNODE.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CDMVCUI5NGNODE-UI5NETWORKGRAPHSTATUS, sy-vline,
  WA_CDMVCUI5NGNODE-UI5NTWKGRAPHNODEISSELECTED, sy-vline,
  WA_CDMVCUI5NGNODE-UI5NTWKGRAPHNODEDISPLAYSTATUS, sy-vline,
  WA_CDMVCUI5NGNODE-UI5NETWORKGRAPHNODEICON, sy-vline,
  WA_CDMVCUI5NGNODE-UI5NETWORKGRAPHNODESHAPE, sy-vline,
  WA_CDMVCUI5NGNODE-UI5NETWORKGRAPHNODETYPE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CDMVCUI5NGNODE you want to display...

  WRITE:/ sy-uline.
* Aternatively use generic code to Write field values (and NAME) to screen report
  DO.
    ASSIGN COMPONENT sy-index OF STRUCTURE wa_CDMVCUI5NGNODE TO <field>.
    IF sy-subrc <> 0. EXIT. ENDIF.
    WRITE:/ 'Field Value', <field>, sy-vline.
    gd_str = <field> .
    lo_typedescr ?= CL_ABAP_DATADESCR=>DESCRIBE_BY_DATA( <field> ).
    lv_fieldname = lo_typedescr->GET_RELATIVE_NAME( ).
    WRITE:/ 'Field Name', lv_fieldname.
  ENDDO.

  
*Redo loop but convert all fields from internal to out value  
LOOP AT IT_CDMVCUI5NGNODE INTO WA_CDMVCUI5NGNODE.


*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Convert all fields to display/output versions using conversion routines
  PERFORM convert_all_field_values CHANGING wa_EKKO.
	 
ENDLOOP.

  
*&---------------------------------------------------------------------*
*& Form convert_all_field_values
*&---------------------------------------------------------------------*
FORM convert_all_field_values CHANGING p_EKKO LIKE wa_EKKO.
DATA: ld_input(1000) TYPE c, ld_output(1000) TYPE C.
ENDFORM. 

*&---------------------------------------------------------------------*
*& Form process_as_string_field_values
*&---------------------------------------------------------------------*
FORM process_as_string_field_values CHANGING p_EKKO LIKE wa_EKKO.

TYPES: BEGIN OF T_CDMVCUI5NGNODE_STR, 
MANDT TYPE STRING,
UI5NETWORKGRAPHNODE TYPE STRING,
UI5NETWORKGRAPHTITLE TYPE STRING,
UI5NETWORKGRAPHDESCRIPTION TYPE STRING,
UI5NETWORKGRAPHGROUP TYPE STRING,
UI5NETWORKGRAPHSTATUS TYPE STRING,
UI5NTWKGRAPHNODEISSELECTED TYPE STRING,
UI5NTWKGRAPHNODEDISPLAYSTATUS TYPE STRING,
UI5NETWORKGRAPHNODEICON TYPE STRING,
UI5NETWORKGRAPHNODESHAPE TYPE STRING,
UI5NETWORKGRAPHNODETYPE TYPE STRING,
UI5NETWORKGRAPHNODELEGENDTEXT TYPE STRING,
SEMANTICOBJECTNAME TYPE STRING,
OBJECTNAME TYPE STRING,
COSTCOMPONENTSTRUCTURE TYPE STRING,
CURRENCY TYPE STRING,
UNITOFMEASURE_E TYPE STRING,
UICT_GLSUMMARIZATIONISACTIVE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CDMVCUI5NGNODE_STR type T_EKKO_STR.

DATA: ld_text TYPE string.

LOOP AT IT_EKKO INTO WA_EKKO.
  MOVE-CORRESPONDING wa_EKKO TO WA_EKKO_STR.
  CONCATENATE: sy-vline
WA_CDMVCUI5NGNODE_STR-MANDT sy-vline 
WA_CDMVCUI5NGNODE_STR-UI5NETWORKGRAPHNODE sy-vline 
WA_CDMVCUI5NGNODE_STR-UI5NETWORKGRAPHTITLE sy-vline 
WA_CDMVCUI5NGNODE_STR-UI5NETWORKGRAPHDESCRIPTION sy-vline 
WA_CDMVCUI5NGNODE_STR-UI5NETWORKGRAPHGROUP sy-vline 
WA_CDMVCUI5NGNODE_STR-UI5NETWORKGRAPHSTATUS sy-vline 
WA_CDMVCUI5NGNODE_STR-UI5NTWKGRAPHNODEISSELECTED sy-vline 
WA_CDMVCUI5NGNODE_STR-UI5NTWKGRAPHNODEDISPLAYSTATUS sy-vline 
WA_CDMVCUI5NGNODE_STR-UI5NETWORKGRAPHNODEICON sy-vline 
WA_CDMVCUI5NGNODE_STR-UI5NETWORKGRAPHNODESHAPE sy-vline 
WA_CDMVCUI5NGNODE_STR-UI5NETWORKGRAPHNODETYPE sy-vline 
WA_CDMVCUI5NGNODE_STR-UI5NETWORKGRAPHNODELEGENDTEXT sy-vline 
WA_CDMVCUI5NGNODE_STR-SEMANTICOBJECTNAME sy-vline 
WA_CDMVCUI5NGNODE_STR-OBJECTNAME sy-vline 
WA_CDMVCUI5NGNODE_STR-COSTCOMPONENTSTRUCTURE sy-vline 
WA_CDMVCUI5NGNODE_STR-CURRENCY sy-vline 
WA_CDMVCUI5NGNODE_STR-UNITOFMEASURE_E sy-vline 
WA_CDMVCUI5NGNODE_STR-UICT_GLSUMMARIZATIONISACTIVE sy-vline      INTO ld_text SEPARATED BY SPACE.

*Add any further fields from structure WA_EKKO_STR you want to CONCATENATE...
ENDLOOP.
ENDFORM.