ABAP Select data from SAP table CPAYFRMNODECND into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CPAYFRMNODECND
*  INTO TABLE @DATA(IT_CPAYFRMNODECND2).
*--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_CPAYFRMNODECND INDEX 1 INTO DATA(WA_CPAYFRMNODECND2).


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

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

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CPAYFRMNODECND-PREEXPRESSIONOPERATOR, sy-vline,
  WA_CPAYFRMNODECND-LEFTOPERANDFIELDNAME, sy-vline,
  WA_CPAYFRMNODECND-LEFTOPERANDSTRUCTURE, sy-vline,
  WA_CPAYFRMNODECND-LEFTOPERANDINTERFACETYPE, sy-vline,
  WA_CPAYFRMNODECND-LEFTOPERANDCOMPARISONVALUE, sy-vline,
  WA_CPAYFRMNODECND-LEFTOPERANDNODE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CPAYFRMNODECND 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_CPAYFRMNODECND 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_CPAYFRMNODECND INTO WA_CPAYFRMNODECND.


*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_CPAYFRMNODECND_STR, 
HIERARCHYTREETYPE TYPE STRING,
HIERARCHYTREE TYPE STRING,
HIERARCHYTREEVERSION TYPE STRING,
HIERARCHYNODE TYPE STRING,
CONDITIONSTEP TYPE STRING,
PREEXPRESSIONOPERATOR TYPE STRING,
LEFTOPERANDFIELDNAME TYPE STRING,
LEFTOPERANDSTRUCTURE TYPE STRING,
LEFTOPERANDINTERFACETYPE TYPE STRING,
LEFTOPERANDCOMPARISONVALUE TYPE STRING,
LEFTOPERANDNODE TYPE STRING,
LEFTOPERANDNODECONTENTTYPE TYPE STRING,
LEFTOPERANDNODEREFERENCE TYPE STRING,
LEFTOPERANDTYPE TYPE STRING,
LEFTOPERANDVARIABLENAME TYPE STRING,
RIGHTOPERANDFIELDNAME TYPE STRING,
RIGHTOPERANDSTRUCTURE TYPE STRING,
RIGHTOPERANDINTERFACETYPE TYPE STRING,
RIGHTOPERANDCOMPARISONVALUE TYPE STRING,
RIGHTOPERANDNODE TYPE STRING,
RIGHTOPERANDNODECONTENTTYPE TYPE STRING,
RIGHTOPERANDNODEREFERENCE TYPE STRING,
RIGHTOPERANDTYPE TYPE STRING,
RIGHTOPERANDVARIABLENAME TYPE STRING,
COMPARISONOPERATOR TYPE STRING,
POSTEXPRESSIONOPERATOR TYPE STRING,
LOGICALOPERATOR TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CPAYFRMNODECND_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_CPAYFRMNODECND_STR-HIERARCHYTREETYPE sy-vline 
WA_CPAYFRMNODECND_STR-HIERARCHYTREE sy-vline 
WA_CPAYFRMNODECND_STR-HIERARCHYTREEVERSION sy-vline 
WA_CPAYFRMNODECND_STR-HIERARCHYNODE sy-vline 
WA_CPAYFRMNODECND_STR-CONDITIONSTEP sy-vline 
WA_CPAYFRMNODECND_STR-PREEXPRESSIONOPERATOR sy-vline 
WA_CPAYFRMNODECND_STR-LEFTOPERANDFIELDNAME sy-vline 
WA_CPAYFRMNODECND_STR-LEFTOPERANDSTRUCTURE sy-vline 
WA_CPAYFRMNODECND_STR-LEFTOPERANDINTERFACETYPE sy-vline 
WA_CPAYFRMNODECND_STR-LEFTOPERANDCOMPARISONVALUE sy-vline 
WA_CPAYFRMNODECND_STR-LEFTOPERANDNODE sy-vline 
WA_CPAYFRMNODECND_STR-LEFTOPERANDNODECONTENTTYPE sy-vline 
WA_CPAYFRMNODECND_STR-LEFTOPERANDNODEREFERENCE sy-vline 
WA_CPAYFRMNODECND_STR-LEFTOPERANDTYPE sy-vline 
WA_CPAYFRMNODECND_STR-LEFTOPERANDVARIABLENAME sy-vline 
WA_CPAYFRMNODECND_STR-RIGHTOPERANDFIELDNAME sy-vline 
WA_CPAYFRMNODECND_STR-RIGHTOPERANDSTRUCTURE sy-vline 
WA_CPAYFRMNODECND_STR-RIGHTOPERANDINTERFACETYPE sy-vline 
WA_CPAYFRMNODECND_STR-RIGHTOPERANDCOMPARISONVALUE sy-vline 
WA_CPAYFRMNODECND_STR-RIGHTOPERANDNODE sy-vline 
WA_CPAYFRMNODECND_STR-RIGHTOPERANDNODECONTENTTYPE sy-vline 
WA_CPAYFRMNODECND_STR-RIGHTOPERANDNODEREFERENCE sy-vline 
WA_CPAYFRMNODECND_STR-RIGHTOPERANDTYPE sy-vline 
WA_CPAYFRMNODECND_STR-RIGHTOPERANDVARIABLENAME sy-vline 
WA_CPAYFRMNODECND_STR-COMPARISONOPERATOR sy-vline 
WA_CPAYFRMNODECND_STR-POSTEXPRESSIONOPERATOR sy-vline 
WA_CPAYFRMNODECND_STR-LOGICALOPERATOR sy-vline      INTO ld_text SEPARATED BY SPACE.

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