ABAP Select data from SAP table PUNPAY_RS into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PUNPAY_RS
*  INTO TABLE @DATA(IT_PUNPAY_RS2).
*--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_PUNPAY_RS INDEX 1 INTO DATA(WA_PUNPAY_RS2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<PUNPAY_RS>-APZNR = 1.
<PUNPAY_RS>-PERNR = 1.
<PUNPAY_RS>-INFTY = 1.
<PUNPAY_RS>-SUBTY = 1.
<PUNPAY_RS>-OBJPS = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PUNPAY_RS-SPRPS, sy-vline,
  WA_PUNPAY_RS-ENDDA, sy-vline,
  WA_PUNPAY_RS-BEGDA, sy-vline,
  WA_PUNPAY_RS-SEQNR, sy-vline,
  WA_PUNPAY_RS-AEDTM, sy-vline,
  WA_PUNPAY_RS-UNAME, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_PUNPAY_RS 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_PUNPAY_RS 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_PUNPAY_RS INTO WA_PUNPAY_RS.


*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_PUNPAY_RS_STR, 
APZNR TYPE STRING,
PERNR TYPE STRING,
INFTY TYPE STRING,
SUBTY TYPE STRING,
OBJPS TYPE STRING,
SPRPS TYPE STRING,
ENDDA TYPE STRING,
BEGDA TYPE STRING,
SEQNR TYPE STRING,
AEDTM TYPE STRING,
UNAME TYPE STRING,
HISTO TYPE STRING,
ITXEX TYPE STRING,
REFEX TYPE STRING,
ORDEX TYPE STRING,
ITBLD TYPE STRING,
PREAS TYPE STRING,
FLAG1 TYPE STRING,
FLAG2 TYPE STRING,
FLAG3 TYPE STRING,
FLAG4 TYPE STRING,
RESE1 TYPE STRING,
RESE2 TYPE STRING,
GRPVL TYPE STRING,
RSDRT TYPE STRING,
LGART TYPE STRING,
OPKEN TYPE STRING,
BETRG TYPE STRING,
WAERS TYPE STRING,
RSREA TYPE STRING,
RSADT TYPE STRING,
RSFMD TYPE STRING,
RSLBD TYPE STRING,
RSLED TYPE STRING,
RSDAS TYPE STRING,
RSEIC TYPE STRING,
RSNBR TYPE STRING,
LGBFA TYPE STRING,
RSBFA TYPE STRING,
WABFA TYPE STRING,
RSAMT TYPE STRING,
WAAMT TYPE STRING,
DSTAT TYPE STRING,
DSCAT TYPE STRING,
EDSTA TYPE STRING,
EDSCA TYPE STRING,
TRFGR TYPE STRING,
TRFST TYPE STRING,
VGLGR TYPE STRING,
VGLST TYPE STRING,
RSSCH TYPE STRING,
RSWAI TYPE STRING,
RSPCA TYPE STRING,
RSTFS TYPE STRING,
RSTAS TYPE STRING,
RSPCN TYPE STRING,
FAMST TYPE STRING,
DPCNT TYPE STRING,
RSKCO TYPE STRING,
KWERT TYPE STRING,
RSMAX TYPE STRING,
RSPCO TYPE STRING,
RS11P TYPE STRING,
RSACR TYPE STRING,
RSDPN TYPE STRING,END OF T_EKKO_STR.
DATA: WA_PUNPAY_RS_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_PUNPAY_RS_STR-APZNR sy-vline 
WA_PUNPAY_RS_STR-PERNR sy-vline 
WA_PUNPAY_RS_STR-INFTY sy-vline 
WA_PUNPAY_RS_STR-SUBTY sy-vline 
WA_PUNPAY_RS_STR-OBJPS sy-vline 
WA_PUNPAY_RS_STR-SPRPS sy-vline 
WA_PUNPAY_RS_STR-ENDDA sy-vline 
WA_PUNPAY_RS_STR-BEGDA sy-vline 
WA_PUNPAY_RS_STR-SEQNR sy-vline 
WA_PUNPAY_RS_STR-AEDTM sy-vline 
WA_PUNPAY_RS_STR-UNAME sy-vline 
WA_PUNPAY_RS_STR-HISTO sy-vline 
WA_PUNPAY_RS_STR-ITXEX sy-vline 
WA_PUNPAY_RS_STR-REFEX sy-vline 
WA_PUNPAY_RS_STR-ORDEX sy-vline 
WA_PUNPAY_RS_STR-ITBLD sy-vline 
WA_PUNPAY_RS_STR-PREAS sy-vline 
WA_PUNPAY_RS_STR-FLAG1 sy-vline 
WA_PUNPAY_RS_STR-FLAG2 sy-vline 
WA_PUNPAY_RS_STR-FLAG3 sy-vline 
WA_PUNPAY_RS_STR-FLAG4 sy-vline 
WA_PUNPAY_RS_STR-RESE1 sy-vline 
WA_PUNPAY_RS_STR-RESE2 sy-vline 
WA_PUNPAY_RS_STR-GRPVL sy-vline 
WA_PUNPAY_RS_STR-RSDRT sy-vline 
WA_PUNPAY_RS_STR-LGART sy-vline 
WA_PUNPAY_RS_STR-OPKEN sy-vline 
WA_PUNPAY_RS_STR-BETRG sy-vline 
WA_PUNPAY_RS_STR-WAERS sy-vline 
WA_PUNPAY_RS_STR-RSREA sy-vline 
WA_PUNPAY_RS_STR-RSADT sy-vline 
WA_PUNPAY_RS_STR-RSFMD sy-vline 
WA_PUNPAY_RS_STR-RSLBD sy-vline 
WA_PUNPAY_RS_STR-RSLED sy-vline 
WA_PUNPAY_RS_STR-RSDAS sy-vline 
WA_PUNPAY_RS_STR-RSEIC sy-vline 
WA_PUNPAY_RS_STR-RSNBR sy-vline 
WA_PUNPAY_RS_STR-LGBFA sy-vline 
WA_PUNPAY_RS_STR-RSBFA sy-vline 
WA_PUNPAY_RS_STR-WABFA sy-vline 
WA_PUNPAY_RS_STR-RSAMT sy-vline 
WA_PUNPAY_RS_STR-WAAMT sy-vline 
WA_PUNPAY_RS_STR-DSTAT sy-vline 
WA_PUNPAY_RS_STR-DSCAT sy-vline 
WA_PUNPAY_RS_STR-EDSTA sy-vline 
WA_PUNPAY_RS_STR-EDSCA sy-vline 
WA_PUNPAY_RS_STR-TRFGR sy-vline 
WA_PUNPAY_RS_STR-TRFST sy-vline 
WA_PUNPAY_RS_STR-VGLGR sy-vline 
WA_PUNPAY_RS_STR-VGLST sy-vline 
WA_PUNPAY_RS_STR-RSSCH sy-vline 
WA_PUNPAY_RS_STR-RSWAI sy-vline 
WA_PUNPAY_RS_STR-RSPCA sy-vline 
WA_PUNPAY_RS_STR-RSTFS sy-vline 
WA_PUNPAY_RS_STR-RSTAS sy-vline 
WA_PUNPAY_RS_STR-RSPCN sy-vline 
WA_PUNPAY_RS_STR-FAMST sy-vline 
WA_PUNPAY_RS_STR-DPCNT sy-vline 
WA_PUNPAY_RS_STR-RSKCO sy-vline 
WA_PUNPAY_RS_STR-KWERT sy-vline 
WA_PUNPAY_RS_STR-RSMAX sy-vline 
WA_PUNPAY_RS_STR-RSPCO sy-vline 
WA_PUNPAY_RS_STR-RS11P sy-vline 
WA_PUNPAY_RS_STR-RSACR sy-vline 
WA_PUNPAY_RS_STR-RSDPN sy-vline      INTO ld_text SEPARATED BY SPACE.

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