ABAP Select data from SAP table EUE_UI_NODE into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP EUE_UI_NODE 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 EUE_UI_NODE. 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 EUE_UI_NODE 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_EUE_UI_NODE TYPE STANDARD TABLE OF EUE_UI_NODE,
      WA_EUE_UI_NODE TYPE EUE_UI_NODE,
      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: <EUE_UI_NODE> TYPE EUE_UI_NODE.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM EUE_UI_NODE
*  INTO TABLE @DATA(IT_EUE_UI_NODE2).
*--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_EUE_UI_NODE INDEX 1 INTO DATA(WA_EUE_UI_NODE2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<EUE_UI_NODE>-NODE = 1.
<EUE_UI_NODE>-EUIHEAD = 1.
<EUE_UI_NODE>-MANDT = 1.
<EUE_UI_NODE>-INT_UI = 1.
<EUE_UI_NODE>-SOURCE = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_EUE_UI_NODE-UITYPE, sy-vline,
  WA_EUE_UI_NODE-EUIROLE_TECH, sy-vline,
  WA_EUE_UI_NODE-EUIROLE_DEREG, sy-vline,
  WA_EUE_UI_NODE-ERDAT, sy-vline,
  WA_EUE_UI_NODE-ERNAM, sy-vline,
  WA_EUE_UI_NODE-AEDAT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_EUE_UI_NODE 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_EUE_UI_NODE 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_EUE_UI_NODE INTO WA_EUE_UI_NODE.


*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.

*Conversion exit ALPHA, internal->external for field VSTELLE
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_EUE_UI_NODE-VSTELLE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_EUE_UI_NODE-VSTELLE.
WRITE:/ 'New Value:', ld_input.
ENDFORM. 

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

TYPES: BEGIN OF T_EUE_UI_NODE_STR, 
NODE TYPE STRING,
EUIHEAD TYPE STRING,
MANDT TYPE STRING,
INT_UI TYPE STRING,
SOURCE TYPE STRING,
UITYPE TYPE STRING,
EUIROLE_TECH TYPE STRING,
EUIROLE_DEREG TYPE STRING,
ERDAT TYPE STRING,
ERNAM TYPE STRING,
AEDAT TYPE STRING,
AENAM TYPE STRING,
BEGRU TYPE STRING,
LOEVM TYPE STRING,
VSTELLE TYPE STRING,
OUCONT TYPE STRING,
EANL TYPE STRING,
EUIINSTLN TYPE STRING,
MOVEOUT TYPE STRING,
NODE TYPE STRING,
ESTIMATE_MR TYPE STRING,
EABL_USE TYPE STRING,
IEABLU TYPE STRING,END OF T_EKKO_STR.
DATA: WA_EUE_UI_NODE_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_EUE_UI_NODE_STR-NODE sy-vline 
WA_EUE_UI_NODE_STR-EUIHEAD sy-vline 
WA_EUE_UI_NODE_STR-MANDT sy-vline 
WA_EUE_UI_NODE_STR-INT_UI sy-vline 
WA_EUE_UI_NODE_STR-SOURCE sy-vline 
WA_EUE_UI_NODE_STR-UITYPE sy-vline 
WA_EUE_UI_NODE_STR-EUIROLE_TECH sy-vline 
WA_EUE_UI_NODE_STR-EUIROLE_DEREG sy-vline 
WA_EUE_UI_NODE_STR-ERDAT sy-vline 
WA_EUE_UI_NODE_STR-ERNAM sy-vline 
WA_EUE_UI_NODE_STR-AEDAT sy-vline 
WA_EUE_UI_NODE_STR-AENAM sy-vline 
WA_EUE_UI_NODE_STR-BEGRU sy-vline 
WA_EUE_UI_NODE_STR-LOEVM sy-vline 
WA_EUE_UI_NODE_STR-VSTELLE sy-vline 
WA_EUE_UI_NODE_STR-OUCONT sy-vline 
WA_EUE_UI_NODE_STR-EANL sy-vline 
WA_EUE_UI_NODE_STR-EUIINSTLN sy-vline 
WA_EUE_UI_NODE_STR-MOVEOUT sy-vline 
WA_EUE_UI_NODE_STR-NODE sy-vline 
WA_EUE_UI_NODE_STR-ESTIMATE_MR sy-vline 
WA_EUE_UI_NODE_STR-EABL_USE sy-vline 
WA_EUE_UI_NODE_STR-IEABLU sy-vline      INTO ld_text SEPARATED BY SPACE.

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