ABAP Select data from SAP table PUNPAY_ALLOW into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP PUNPAY_ALLOW 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_ALLOW. 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_ALLOW 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_ALLOW TYPE STANDARD TABLE OF PUNPAY_ALLOW,
      WA_PUNPAY_ALLOW TYPE PUNPAY_ALLOW,
      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_ALLOW> TYPE PUNPAY_ALLOW.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PUNPAY_ALLOW
*  INTO TABLE @DATA(IT_PUNPAY_ALLOW2).
*--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_ALLOW INDEX 1 INTO DATA(WA_PUNPAY_ALLOW2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<PUNPAY_ALLOW>-ENDDA = 1.
<PUNPAY_ALLOW>-BEGDA = 1.
<PUNPAY_ALLOW>-STAT2 = 1.
<PUNPAY_ALLOW>-WERKS = 1.
<PUNPAY_ALLOW>-BTRTL = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PUNPAY_ALLOW-DSTAT, sy-vline,
  WA_PUNPAY_ALLOW-DSCAT, sy-vline,
  WA_PUNPAY_ALLOW-DSCAM, sy-vline,
  WA_PUNPAY_ALLOW-EXT_PREAS, sy-vline,
  WA_PUNPAY_ALLOW-EXT_WERKS, sy-vline,
  WA_PUNPAY_ALLOW-EXT_BTRTL, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_PUNPAY_ALLOW 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_ALLOW 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_ALLOW INTO WA_PUNPAY_ALLOW.


*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_ALLOW_STR, 
ENDDA TYPE STRING,
BEGDA TYPE STRING,
STAT2 TYPE STRING,
WERKS TYPE STRING,
BTRTL TYPE STRING,
DSTAT TYPE STRING,
DSCAT TYPE STRING,
DSCAM TYPE STRING,
EXT_PREAS TYPE STRING,
EXT_WERKS TYPE STRING,
EXT_BTRTL TYPE STRING,
EXT_DSTAT TYPE STRING,
EXT_DSCAT TYPE STRING,
DSEOD TYPE STRING,
DSEND TYPE STRING,
MOGED TYPE STRING,
MORED TYPE STRING,
MOEXD TYPE STRING,
RERED TYPE STRING,
EGDDS TYPE STRING,
EGASH TYPE STRING,
DSSCL TYPE STRING,
DSNFI TYPE STRING,
DSAPA TYPE STRING,
DSAFI TYPE STRING,
DSESI TYPE STRING,
HAZRC TYPE STRING,
APA_DSSCL TYPE STRING,
APA_DSNFI TYPE STRING,
APA_DSAFI TYPE STRING,
APA_DSESI TYPE STRING,
DSTDY TYPE STRING,
DSROC TYPE STRING,
DSARR TYPE STRING,
DSAPR TYPE STRING,
DSALD TYPE STRING,
DSRGC TYPE STRING,
DSHML TYPE STRING,
MOIND TYPE STRING,
MRIND TYPE STRING,
REIND TYPE STRING,
DSCNT_H TYPE STRING,
DSCNT_F TYPE STRING,
DSCNT_AH TYPE STRING,
DSCNT_AF TYPE STRING,
DSCNT_TH TYPE STRING,
DSCNT_TF TYPE STRING,
DSSQN_PAY TYPE STRING,
LGART TYPE STRING,
ANZHL TYPE STRING,
BETRG TYPE STRING,
WAERS TYPE STRING,END OF T_EKKO_STR.
DATA: WA_PUNPAY_ALLOW_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_ALLOW_STR-ENDDA sy-vline 
WA_PUNPAY_ALLOW_STR-BEGDA sy-vline 
WA_PUNPAY_ALLOW_STR-STAT2 sy-vline 
WA_PUNPAY_ALLOW_STR-WERKS sy-vline 
WA_PUNPAY_ALLOW_STR-BTRTL sy-vline 
WA_PUNPAY_ALLOW_STR-DSTAT sy-vline 
WA_PUNPAY_ALLOW_STR-DSCAT sy-vline 
WA_PUNPAY_ALLOW_STR-DSCAM sy-vline 
WA_PUNPAY_ALLOW_STR-EXT_PREAS sy-vline 
WA_PUNPAY_ALLOW_STR-EXT_WERKS sy-vline 
WA_PUNPAY_ALLOW_STR-EXT_BTRTL sy-vline 
WA_PUNPAY_ALLOW_STR-EXT_DSTAT sy-vline 
WA_PUNPAY_ALLOW_STR-EXT_DSCAT sy-vline 
WA_PUNPAY_ALLOW_STR-DSEOD sy-vline 
WA_PUNPAY_ALLOW_STR-DSEND sy-vline 
WA_PUNPAY_ALLOW_STR-MOGED sy-vline 
WA_PUNPAY_ALLOW_STR-MORED sy-vline 
WA_PUNPAY_ALLOW_STR-MOEXD sy-vline 
WA_PUNPAY_ALLOW_STR-RERED sy-vline 
WA_PUNPAY_ALLOW_STR-EGDDS sy-vline 
WA_PUNPAY_ALLOW_STR-EGASH sy-vline 
WA_PUNPAY_ALLOW_STR-DSSCL sy-vline 
WA_PUNPAY_ALLOW_STR-DSNFI sy-vline 
WA_PUNPAY_ALLOW_STR-DSAPA sy-vline 
WA_PUNPAY_ALLOW_STR-DSAFI sy-vline 
WA_PUNPAY_ALLOW_STR-DSESI sy-vline 
WA_PUNPAY_ALLOW_STR-HAZRC sy-vline 
WA_PUNPAY_ALLOW_STR-APA_DSSCL sy-vline 
WA_PUNPAY_ALLOW_STR-APA_DSNFI sy-vline 
WA_PUNPAY_ALLOW_STR-APA_DSAFI sy-vline 
WA_PUNPAY_ALLOW_STR-APA_DSESI sy-vline 
WA_PUNPAY_ALLOW_STR-DSTDY sy-vline 
WA_PUNPAY_ALLOW_STR-DSROC sy-vline 
WA_PUNPAY_ALLOW_STR-DSARR sy-vline 
WA_PUNPAY_ALLOW_STR-DSAPR sy-vline 
WA_PUNPAY_ALLOW_STR-DSALD sy-vline 
WA_PUNPAY_ALLOW_STR-DSRGC sy-vline 
WA_PUNPAY_ALLOW_STR-DSHML sy-vline 
WA_PUNPAY_ALLOW_STR-MOIND sy-vline 
WA_PUNPAY_ALLOW_STR-MRIND sy-vline 
WA_PUNPAY_ALLOW_STR-REIND sy-vline 
WA_PUNPAY_ALLOW_STR-DSCNT_H sy-vline 
WA_PUNPAY_ALLOW_STR-DSCNT_F sy-vline 
WA_PUNPAY_ALLOW_STR-DSCNT_AH sy-vline 
WA_PUNPAY_ALLOW_STR-DSCNT_AF sy-vline 
WA_PUNPAY_ALLOW_STR-DSCNT_TH sy-vline 
WA_PUNPAY_ALLOW_STR-DSCNT_TF sy-vline 
WA_PUNPAY_ALLOW_STR-DSSQN_PAY sy-vline 
WA_PUNPAY_ALLOW_STR-LGART sy-vline 
WA_PUNPAY_ALLOW_STR-ANZHL sy-vline 
WA_PUNPAY_ALLOW_STR-BETRG sy-vline 
WA_PUNPAY_ALLOW_STR-WAERS sy-vline      INTO ld_text SEPARATED BY SPACE.

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