ABAP Select data from SAP table CPAYFRMNODECLC into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CPAYFRMNODECLC
*  INTO TABLE @DATA(IT_CPAYFRMNODECLC2).
*--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_CPAYFRMNODECLC INDEX 1 INTO DATA(WA_CPAYFRMNODECLC2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<CPAYFRMNODECLC>-HIERARCHYTREETYPE = 1.
<CPAYFRMNODECLC>-HIERARCHYTREE = 1.
<CPAYFRMNODECLC>-HIERARCHYTREEVERSION = 1.
<CPAYFRMNODECLC>-HIERARCHYNODE = 1.
<CPAYFRMNODECLC>-SORTSEQUENCE = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CPAYFRMNODECLC-HIERARCHYTREEVARIABLENAME, sy-vline,
  WA_CPAYFRMNODECLC-HIERARCHYTREEARITHMETICOPTR, sy-vline,
  WA_CPAYFRMNODECLC-LEFTOPERANDVALUE, sy-vline,
  WA_CPAYFRMNODECLC-LEFTOPERANDTYPE, sy-vline,
  WA_CPAYFRMNODECLC-LEFTOPERANDNODECONTENTTYPE, sy-vline,
  WA_CPAYFRMNODECLC-RIGHTOPERANDVALUE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CPAYFRMNODECLC 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_CPAYFRMNODECLC 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_CPAYFRMNODECLC INTO WA_CPAYFRMNODECLC.


*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_CPAYFRMNODECLC_STR, 
HIERARCHYTREETYPE TYPE STRING,
HIERARCHYTREE TYPE STRING,
HIERARCHYTREEVERSION TYPE STRING,
HIERARCHYNODE TYPE STRING,
SORTSEQUENCE TYPE STRING,
HIERARCHYTREEVARIABLENAME TYPE STRING,
HIERARCHYTREEARITHMETICOPTR TYPE STRING,
LEFTOPERANDVALUE TYPE STRING,
LEFTOPERANDTYPE TYPE STRING,
LEFTOPERANDNODECONTENTTYPE TYPE STRING,
RIGHTOPERANDVALUE TYPE STRING,
RIGHTOPERANDTYPE TYPE STRING,
RIGHTOPERANDNODECONTENTTYPE TYPE STRING,
HIERARCHYTREEARITHMETICOPTRTXT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CPAYFRMNODECLC_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_CPAYFRMNODECLC_STR-HIERARCHYTREETYPE sy-vline 
WA_CPAYFRMNODECLC_STR-HIERARCHYTREE sy-vline 
WA_CPAYFRMNODECLC_STR-HIERARCHYTREEVERSION sy-vline 
WA_CPAYFRMNODECLC_STR-HIERARCHYNODE sy-vline 
WA_CPAYFRMNODECLC_STR-SORTSEQUENCE sy-vline 
WA_CPAYFRMNODECLC_STR-HIERARCHYTREEVARIABLENAME sy-vline 
WA_CPAYFRMNODECLC_STR-HIERARCHYTREEARITHMETICOPTR sy-vline 
WA_CPAYFRMNODECLC_STR-LEFTOPERANDVALUE sy-vline 
WA_CPAYFRMNODECLC_STR-LEFTOPERANDTYPE sy-vline 
WA_CPAYFRMNODECLC_STR-LEFTOPERANDNODECONTENTTYPE sy-vline 
WA_CPAYFRMNODECLC_STR-RIGHTOPERANDVALUE sy-vline 
WA_CPAYFRMNODECLC_STR-RIGHTOPERANDTYPE sy-vline 
WA_CPAYFRMNODECLC_STR-RIGHTOPERANDNODECONTENTTYPE sy-vline 
WA_CPAYFRMNODECLC_STR-HIERARCHYTREEARITHMETICOPTRTXT sy-vline      INTO ld_text SEPARATED BY SPACE.

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