ABAP Select data from SAP table CPAYFRTREE into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CPAYFRTREE
*  INTO TABLE @DATA(IT_CPAYFRTREE2).
*--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_CPAYFRTREE INDEX 1 INTO DATA(WA_CPAYFRTREE2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<CPAYFRTREE>-HIERARCHYTREETYPE = 1.
<CPAYFRTREE>-HIERARCHYTREE = 1.
<CPAYFRTREE>-CREATEDBYUSER = 1.
<CPAYFRTREE>-CREATIONDATE = 1.
<CPAYFRTREE>-CREATIONTIME = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CPAYFRTREE-LASTCHANGEDBYUSER, sy-vline,
  WA_CPAYFRTREE-LASTCHANGEDATE, sy-vline,
  WA_CPAYFRTREE-LASTCHANGETIME, sy-vline,
  WA_CPAYFRTREE-HIERARCHYTREEDOCUMENTATIONREF, sy-vline,
  WA_CPAYFRTREE-HIERARCHYTREEISRELEASED, sy-vline,
  WA_CPAYFRTREE-HIERARCHYTREEORIGINALLANGUAGE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CPAYFRTREE 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_CPAYFRTREE 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_CPAYFRTREE INTO WA_CPAYFRTREE.


*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 ISOLA, internal->external for field HIERARCHYTREEORIGINALLANGUAGE
CALL FUNCTION 'CONVERSION_EXIT_ISOLA_OUTPUT'
  EXPORTING
    input =                      WA_CPAYFRTREE-HIERARCHYTREEORIGINALLANGUAGE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CPAYFRTREE-HIERARCHYTREEORIGINALLANGUAGE.
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_CPAYFRTREE_STR, 
HIERARCHYTREETYPE TYPE STRING,
HIERARCHYTREE TYPE STRING,
CREATEDBYUSER TYPE STRING,
CREATIONDATE TYPE STRING,
CREATIONTIME TYPE STRING,
LASTCHANGEDBYUSER TYPE STRING,
LASTCHANGEDATE TYPE STRING,
LASTCHANGETIME TYPE STRING,
HIERARCHYTREEDOCUMENTATIONREF TYPE STRING,
HIERARCHYTREEISRELEASED TYPE STRING,
HIERARCHYTREEORIGINALLANGUAGE TYPE STRING,
OUTPUTFILEFORMATISXML TYPE STRING,
HIERARCHYPARENTTREE TYPE STRING,
HIERARCHYTREEREDEFINITIONLEVEL TYPE STRING,
HIERARCHYTREESHORTTEXT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CPAYFRTREE_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_CPAYFRTREE_STR-HIERARCHYTREETYPE sy-vline 
WA_CPAYFRTREE_STR-HIERARCHYTREE sy-vline 
WA_CPAYFRTREE_STR-CREATEDBYUSER sy-vline 
WA_CPAYFRTREE_STR-CREATIONDATE sy-vline 
WA_CPAYFRTREE_STR-CREATIONTIME sy-vline 
WA_CPAYFRTREE_STR-LASTCHANGEDBYUSER sy-vline 
WA_CPAYFRTREE_STR-LASTCHANGEDATE sy-vline 
WA_CPAYFRTREE_STR-LASTCHANGETIME sy-vline 
WA_CPAYFRTREE_STR-HIERARCHYTREEDOCUMENTATIONREF sy-vline 
WA_CPAYFRTREE_STR-HIERARCHYTREEISRELEASED sy-vline 
WA_CPAYFRTREE_STR-HIERARCHYTREEORIGINALLANGUAGE sy-vline 
WA_CPAYFRTREE_STR-OUTPUTFILEFORMATISXML sy-vline 
WA_CPAYFRTREE_STR-HIERARCHYPARENTTREE sy-vline 
WA_CPAYFRTREE_STR-HIERARCHYTREEREDEFINITIONLEVEL sy-vline 
WA_CPAYFRTREE_STR-HIERARCHYTREESHORTTEXT sy-vline      INTO ld_text SEPARATED BY SPACE.

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