ABAP Select data from SAP table PAYNL_NATIONAL into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP PAYNL_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 PAYNL_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 PAYNL_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_PAYNL_NATIONAL TYPE STANDARD TABLE OF PAYNL_NATIONAL,
      WA_PAYNL_NATIONAL TYPE PAYNL_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: <PAYNL_NATIONAL> TYPE PAYNL_NATIONAL.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PAYNL_NATIONAL
*  INTO TABLE @DATA(IT_PAYNL_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_PAYNL_NATIONAL INDEX 1 INTO DATA(WA_PAYNL_NATIONAL2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<PAYNL_NATIONAL>-ABP = 1.
<PAYNL_NATIONAL>-ST = 1.
<PAYNL_NATIONAL>-SV = 1.
<PAYNL_NATIONAL>-SP = 1.
<PAYNL_NATIONAL>-PS = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PAYNL_NATIONAL-NWV, sy-vline,
  WA_PAYNL_NATIONAL-NADR, sy-vline,
  WA_PAYNL_NATIONAL-SUBTY, sy-vline,
  WA_PAYNL_NATIONAL-STRAS, sy-vline,
  WA_PAYNL_NATIONAL-ORT01, sy-vline,
  WA_PAYNL_NATIONAL-PSTLZ, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_PAYNL_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_PAYNL_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_PAYNL_NATIONAL INTO WA_PAYNL_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_PAYNL_NATIONAL-GBDAT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PAYNL_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_PAYNL_NATIONAL_STR, 
ABP TYPE STRING,
ST TYPE STRING,
SV TYPE STRING,
SP TYPE STRING,
PS TYPE STRING,
NWV TYPE STRING,
NADR TYPE STRING,
SUBTY TYPE STRING,
STRAS TYPE STRING,
ORT01 TYPE STRING,
PSTLZ TYPE STRING,
LAND1 TYPE STRING,
ENTKM TYPE STRING,
BUSRT TYPE STRING,
LOCAT TYPE STRING,
HSNMR TYPE STRING,
POSTA TYPE STRING,
ENTK2 TYPE STRING,
NAME2 TYPE STRING,
NNAM TYPE STRING,
NACHN TYPE STRING,
NAME2 TYPE STRING,
VORSW TYPE STRING,
VORNA TYPE STRING,
TITEL TYPE STRING,
TITL2 TYPE STRING,
VORS2 TYPE STRING,
RUFNM TYPE STRING,
INITS TYPE STRING,
KNZNM TYPE STRING,
ANRED TYPE STRING,
GESCH TYPE STRING,
GBDAT TYPE STRING,
NATIO TYPE STRING,
FAMST TYPE STRING,
FAMDT TYPE STRING,
SNAME TYPE STRING,
ENAME TYPE STRING,
NTDG TYPE STRING,
AK TYPE STRING,
INFD TYPE STRING,
PSTSP TYPE STRING,
DNSTV TYPE STRING,
SRTDT TYPE STRING,
CATGR TYPE STRING,
INDDA TYPE STRING,
UITDA TYPE STRING,
AFWAD TYPE STRING,
CAOCD TYPE STRING,
VAKFD TYPE STRING,
BEDRV TYPE STRING,
CDVERZ TYPE STRING,
BEROP TYPE STRING,
VZABP TYPE STRING,
RISCF TYPE STRING,
VANGN TYPE STRING,
RPCBS TYPE STRING,
RPUVI TYPE STRING,
EH_CAOCD TYPE STRING,
SCHNR TYPE STRING,
SALNR TYPE STRING,
NSR0 TYPE STRING,
NKO TYPE STRING,
PK TYPE STRING,
LA TYPE STRING,
SR TYPE STRING,
CB TYPE STRING,
NB TYPE STRING,
FB TYPE STRING,
NARG TYPE STRING,
PRAP TYPE STRING,
LAIRW TYPE STRING,
HBMH TYPE STRING,
HBMW TYPE STRING,
HBMR TYPE STRING,END OF T_EKKO_STR.
DATA: WA_PAYNL_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_PAYNL_NATIONAL_STR-ABP sy-vline 
WA_PAYNL_NATIONAL_STR-ST sy-vline 
WA_PAYNL_NATIONAL_STR-SV sy-vline 
WA_PAYNL_NATIONAL_STR-SP sy-vline 
WA_PAYNL_NATIONAL_STR-PS sy-vline 
WA_PAYNL_NATIONAL_STR-NWV sy-vline 
WA_PAYNL_NATIONAL_STR-NADR sy-vline 
WA_PAYNL_NATIONAL_STR-SUBTY sy-vline 
WA_PAYNL_NATIONAL_STR-STRAS sy-vline 
WA_PAYNL_NATIONAL_STR-ORT01 sy-vline 
WA_PAYNL_NATIONAL_STR-PSTLZ sy-vline 
WA_PAYNL_NATIONAL_STR-LAND1 sy-vline 
WA_PAYNL_NATIONAL_STR-ENTKM sy-vline 
WA_PAYNL_NATIONAL_STR-BUSRT sy-vline 
WA_PAYNL_NATIONAL_STR-LOCAT sy-vline 
WA_PAYNL_NATIONAL_STR-HSNMR sy-vline 
WA_PAYNL_NATIONAL_STR-POSTA sy-vline 
WA_PAYNL_NATIONAL_STR-ENTK2 sy-vline 
WA_PAYNL_NATIONAL_STR-NAME2 sy-vline 
WA_PAYNL_NATIONAL_STR-NNAM sy-vline 
WA_PAYNL_NATIONAL_STR-NACHN sy-vline 
WA_PAYNL_NATIONAL_STR-NAME2 sy-vline 
WA_PAYNL_NATIONAL_STR-VORSW sy-vline 
WA_PAYNL_NATIONAL_STR-VORNA sy-vline 
WA_PAYNL_NATIONAL_STR-TITEL sy-vline 
WA_PAYNL_NATIONAL_STR-TITL2 sy-vline 
WA_PAYNL_NATIONAL_STR-VORS2 sy-vline 
WA_PAYNL_NATIONAL_STR-RUFNM sy-vline 
WA_PAYNL_NATIONAL_STR-INITS sy-vline 
WA_PAYNL_NATIONAL_STR-KNZNM sy-vline 
WA_PAYNL_NATIONAL_STR-ANRED sy-vline 
WA_PAYNL_NATIONAL_STR-GESCH sy-vline 
WA_PAYNL_NATIONAL_STR-GBDAT sy-vline 
WA_PAYNL_NATIONAL_STR-NATIO sy-vline 
WA_PAYNL_NATIONAL_STR-FAMST sy-vline 
WA_PAYNL_NATIONAL_STR-FAMDT sy-vline 
WA_PAYNL_NATIONAL_STR-SNAME sy-vline 
WA_PAYNL_NATIONAL_STR-ENAME sy-vline 
WA_PAYNL_NATIONAL_STR-NTDG sy-vline 
WA_PAYNL_NATIONAL_STR-AK sy-vline 
WA_PAYNL_NATIONAL_STR-INFD sy-vline 
WA_PAYNL_NATIONAL_STR-PSTSP sy-vline 
WA_PAYNL_NATIONAL_STR-DNSTV sy-vline 
WA_PAYNL_NATIONAL_STR-SRTDT sy-vline 
WA_PAYNL_NATIONAL_STR-CATGR sy-vline 
WA_PAYNL_NATIONAL_STR-INDDA sy-vline 
WA_PAYNL_NATIONAL_STR-UITDA sy-vline 
WA_PAYNL_NATIONAL_STR-AFWAD sy-vline 
WA_PAYNL_NATIONAL_STR-CAOCD sy-vline 
WA_PAYNL_NATIONAL_STR-VAKFD sy-vline 
WA_PAYNL_NATIONAL_STR-BEDRV sy-vline 
WA_PAYNL_NATIONAL_STR-CDVERZ sy-vline 
WA_PAYNL_NATIONAL_STR-BEROP sy-vline 
WA_PAYNL_NATIONAL_STR-VZABP sy-vline 
WA_PAYNL_NATIONAL_STR-RISCF sy-vline 
WA_PAYNL_NATIONAL_STR-VANGN sy-vline 
WA_PAYNL_NATIONAL_STR-RPCBS sy-vline 
WA_PAYNL_NATIONAL_STR-RPUVI sy-vline 
WA_PAYNL_NATIONAL_STR-EH_CAOCD sy-vline 
WA_PAYNL_NATIONAL_STR-SCHNR sy-vline 
WA_PAYNL_NATIONAL_STR-SALNR sy-vline 
WA_PAYNL_NATIONAL_STR-NSR0 sy-vline 
WA_PAYNL_NATIONAL_STR-NKO sy-vline 
WA_PAYNL_NATIONAL_STR-PK sy-vline 
WA_PAYNL_NATIONAL_STR-LA sy-vline 
WA_PAYNL_NATIONAL_STR-SR sy-vline 
WA_PAYNL_NATIONAL_STR-CB sy-vline 
WA_PAYNL_NATIONAL_STR-NB sy-vline 
WA_PAYNL_NATIONAL_STR-FB sy-vline 
WA_PAYNL_NATIONAL_STR-NARG sy-vline 
WA_PAYNL_NATIONAL_STR-PRAP sy-vline 
WA_PAYNL_NATIONAL_STR-LAIRW sy-vline 
WA_PAYNL_NATIONAL_STR-HBMH sy-vline 
WA_PAYNL_NATIONAL_STR-HBMW sy-vline 
WA_PAYNL_NATIONAL_STR-HBMR sy-vline      INTO ld_text SEPARATED BY SPACE.

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