ABAP Select data from SAP table IFSVNODECOA into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM IFSVNODECOA
*  INTO TABLE @DATA(IT_IFSVNODECOA2).
*--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_IFSVNODECOA INDEX 1 INTO DATA(WA_IFSVNODECOA2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<IFSVNODECOA>-MANDT = 1.
<IFSVNODECOA>-HIERARCHYNODEUNIQUEID = 1.
<IFSVNODECOA>-FINANCIALSTATEMENTVARIANT = 1.
<IFSVNODECOA>-CHARTOFACCOUNTS = 1.
<IFSVNODECOA>-PARENTNODEUNIQUEID = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_IFSVNODECOA-FINANCIALSTATEMENTITEM, sy-vline,
  WA_IFSVNODECOA-GLACCOUNT, sy-vline,
  WA_IFSVNODECOA-FUNCTIONALAREA, sy-vline,
  WA_IFSVNODECOA-FINSTATEMENTHIERARCHYLEVELVAL, sy-vline,
  WA_IFSVNODECOA-NODETYPE, sy-vline,
  WA_IFSVNODECOA-HIERARCHYNODEDESCRIPTION, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_IFSVNODECOA 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_IFSVNODECOA 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_IFSVNODECOA INTO WA_IFSVNODECOA.


*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 GLACCOUNT
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_IFSVNODECOA-GLACCOUNT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IFSVNODECOA-GLACCOUNT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field CORPORATEGROUPACCOUNT
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_IFSVNODECOA-CORPORATEGROUPACCOUNT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IFSVNODECOA-CORPORATEGROUPACCOUNT.
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_IFSVNODECOA_STR, 
MANDT TYPE STRING,
HIERARCHYNODEUNIQUEID TYPE STRING,
FINANCIALSTATEMENTVARIANT TYPE STRING,
CHARTOFACCOUNTS TYPE STRING,
PARENTNODEUNIQUEID TYPE STRING,
FINANCIALSTATEMENTITEM TYPE STRING,
GLACCOUNT TYPE STRING,
FUNCTIONALAREA TYPE STRING,
FINSTATEMENTHIERARCHYLEVELVAL TYPE STRING,
NODETYPE TYPE STRING,
HIERARCHYNODEDESCRIPTION TYPE STRING,
ISDEBITBALANCERELEVANT TYPE STRING,
ISCREDITBALANCERELEVANT TYPE STRING,
OFFSETTINGITEM TYPE STRING,
HIERARCHYNODE TYPE STRING,
SIBLINGNODE TYPE STRING,
GLACCTHIERARCHYNODECATEGORY TYPE STRING,
DRILLDOWNISIMPOSSIBLE TYPE STRING,
CORPORATEGROUPACCOUNT TYPE STRING,
CORPORATEGROUPCHARTOFACCOUNTS TYPE STRING,
SEMANTICTAG TYPE STRING,END OF T_EKKO_STR.
DATA: WA_IFSVNODECOA_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_IFSVNODECOA_STR-MANDT sy-vline 
WA_IFSVNODECOA_STR-HIERARCHYNODEUNIQUEID sy-vline 
WA_IFSVNODECOA_STR-FINANCIALSTATEMENTVARIANT sy-vline 
WA_IFSVNODECOA_STR-CHARTOFACCOUNTS sy-vline 
WA_IFSVNODECOA_STR-PARENTNODEUNIQUEID sy-vline 
WA_IFSVNODECOA_STR-FINANCIALSTATEMENTITEM sy-vline 
WA_IFSVNODECOA_STR-GLACCOUNT sy-vline 
WA_IFSVNODECOA_STR-FUNCTIONALAREA sy-vline 
WA_IFSVNODECOA_STR-FINSTATEMENTHIERARCHYLEVELVAL sy-vline 
WA_IFSVNODECOA_STR-NODETYPE sy-vline 
WA_IFSVNODECOA_STR-HIERARCHYNODEDESCRIPTION sy-vline 
WA_IFSVNODECOA_STR-ISDEBITBALANCERELEVANT sy-vline 
WA_IFSVNODECOA_STR-ISCREDITBALANCERELEVANT sy-vline 
WA_IFSVNODECOA_STR-OFFSETTINGITEM sy-vline 
WA_IFSVNODECOA_STR-HIERARCHYNODE sy-vline 
WA_IFSVNODECOA_STR-SIBLINGNODE sy-vline 
WA_IFSVNODECOA_STR-GLACCTHIERARCHYNODECATEGORY sy-vline 
WA_IFSVNODECOA_STR-DRILLDOWNISIMPOSSIBLE sy-vline 
WA_IFSVNODECOA_STR-CORPORATEGROUPACCOUNT sy-vline 
WA_IFSVNODECOA_STR-CORPORATEGROUPCHARTOFACCOUNTS sy-vline 
WA_IFSVNODECOA_STR-SEMANTICTAG sy-vline      INTO ld_text SEPARATED BY SPACE.

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