ABAP Select data from SAP table PAYUS_NATIONAL into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PAYUS_NATIONAL
*  INTO TABLE @DATA(IT_PAYUS_NATIONAL2).
*--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_PAYUS_NATIONAL INDEX 1 INTO DATA(WA_PAYUS_NATIONAL2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<PAYUS_NATIONAL>-NAME = 1.
<PAYUS_NATIONAL>-NACHN = 1.
<PAYUS_NATIONAL>-VORNA = 1.
<PAYUS_NATIONAL>-ANRED = 1.
<PAYUS_NATIONAL>-INITS = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PAYUS_NATIONAL-ADR, sy-vline,
  WA_PAYUS_NATIONAL-STRAS, sy-vline,
  WA_PAYUS_NATIONAL-LOCAT, sy-vline,
  WA_PAYUS_NATIONAL-ORT01, sy-vline,
  WA_PAYUS_NATIONAL-ORT02, sy-vline,
  WA_PAYUS_NATIONAL-STATE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_PAYUS_NATIONAL 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_PAYUS_NATIONAL 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_PAYUS_NATIONAL INTO WA_PAYUS_NATIONAL.


*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 PDATE, internal->external for field GBDAT
CALL FUNCTION 'CONVERSION_EXIT_PDATE_OUTPUT'
  EXPORTING
    input =                      WA_PAYUS_NATIONAL-GBDAT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PAYUS_NATIONAL-GBDAT.
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_PAYUS_NATIONAL_STR, 
NAME TYPE STRING,
NACHN TYPE STRING,
VORNA TYPE STRING,
ANRED TYPE STRING,
INITS TYPE STRING,
ADR TYPE STRING,
STRAS TYPE STRING,
LOCAT TYPE STRING,
ORT01 TYPE STRING,
ORT02 TYPE STRING,
STATE TYPE STRING,
PSTLZ TYPE STRING,
LAND1 TYPE STRING,
PERM TYPE STRING,
GESCH TYPE STRING,
GBDAT TYPE STRING,
PERID TYPE STRING,
TXCMP TYPE STRING,
TCCPM TYPE STRING,
TAX TYPE STRING,
TAXR TYPE STRING,
TAXPR TYPE STRING,
GRDOC TYPE STRING,
GRORD TYPE STRING,
GRREC TYPE STRING,
DFRT TYPE STRING,
DOWP TYPE STRING,
DOC0 TYPE STRING,
UTIPS TYPE STRING,
NRCT TYPE STRING,
DNRCT TYPE STRING,
TCRT TYPE STRING,
BAL TYPE STRING,
UNB TYPE STRING,
XDFRT TYPE STRING,
GRCUM TYPE STRING,
COSTS TYPE STRING,
CLM TYPE STRING,
USVERS TYPE STRING,END OF T_EKKO_STR.
DATA: WA_PAYUS_NATIONAL_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_PAYUS_NATIONAL_STR-NAME sy-vline 
WA_PAYUS_NATIONAL_STR-NACHN sy-vline 
WA_PAYUS_NATIONAL_STR-VORNA sy-vline 
WA_PAYUS_NATIONAL_STR-ANRED sy-vline 
WA_PAYUS_NATIONAL_STR-INITS sy-vline 
WA_PAYUS_NATIONAL_STR-ADR sy-vline 
WA_PAYUS_NATIONAL_STR-STRAS sy-vline 
WA_PAYUS_NATIONAL_STR-LOCAT sy-vline 
WA_PAYUS_NATIONAL_STR-ORT01 sy-vline 
WA_PAYUS_NATIONAL_STR-ORT02 sy-vline 
WA_PAYUS_NATIONAL_STR-STATE sy-vline 
WA_PAYUS_NATIONAL_STR-PSTLZ sy-vline 
WA_PAYUS_NATIONAL_STR-LAND1 sy-vline 
WA_PAYUS_NATIONAL_STR-PERM sy-vline 
WA_PAYUS_NATIONAL_STR-GESCH sy-vline 
WA_PAYUS_NATIONAL_STR-GBDAT sy-vline 
WA_PAYUS_NATIONAL_STR-PERID sy-vline 
WA_PAYUS_NATIONAL_STR-TXCMP sy-vline 
WA_PAYUS_NATIONAL_STR-TCCPM sy-vline 
WA_PAYUS_NATIONAL_STR-TAX sy-vline 
WA_PAYUS_NATIONAL_STR-TAXR sy-vline 
WA_PAYUS_NATIONAL_STR-TAXPR sy-vline 
WA_PAYUS_NATIONAL_STR-GRDOC sy-vline 
WA_PAYUS_NATIONAL_STR-GRORD sy-vline 
WA_PAYUS_NATIONAL_STR-GRREC sy-vline 
WA_PAYUS_NATIONAL_STR-DFRT sy-vline 
WA_PAYUS_NATIONAL_STR-DOWP sy-vline 
WA_PAYUS_NATIONAL_STR-DOC0 sy-vline 
WA_PAYUS_NATIONAL_STR-UTIPS sy-vline 
WA_PAYUS_NATIONAL_STR-NRCT sy-vline 
WA_PAYUS_NATIONAL_STR-DNRCT sy-vline 
WA_PAYUS_NATIONAL_STR-TCRT sy-vline 
WA_PAYUS_NATIONAL_STR-BAL sy-vline 
WA_PAYUS_NATIONAL_STR-UNB sy-vline 
WA_PAYUS_NATIONAL_STR-XDFRT sy-vline 
WA_PAYUS_NATIONAL_STR-GRCUM sy-vline 
WA_PAYUS_NATIONAL_STR-COSTS sy-vline 
WA_PAYUS_NATIONAL_STR-CLM sy-vline 
WA_PAYUS_NATIONAL_STR-USVERS sy-vline      INTO ld_text SEPARATED BY SPACE.

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