ABAP Select data from SAP table PUNPAD_EGCONS into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PUNPAD_EGCONS
*  INTO TABLE @DATA(IT_PUNPAD_EGCONS2).
*--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_PUNPAD_EGCONS INDEX 1 INTO DATA(WA_PUNPAD_EGCONS2).


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

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

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PUNPAD_EGCONS-ENDDA, sy-vline,
  WA_PUNPAD_EGCONS-BEGDA, sy-vline,
  WA_PUNPAD_EGCONS-SEQNR, sy-vline,
  WA_PUNPAD_EGCONS-EGYFR, sy-vline,
  WA_PUNPAD_EGCONS-EGYTO, sy-vline,
  WA_PUNPAD_EGCONS-EGSNA, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_PUNPAD_EGCONS 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_PUNPAD_EGCONS 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_PUNPAD_EGCONS INTO WA_PUNPAD_EGCONS.


*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_PUNPAD_EGCONS_STR, 
PERNR TYPE STRING,
INFTY TYPE STRING,
SUBTY TYPE STRING,
OBJPS TYPE STRING,
SPRPS TYPE STRING,
ENDDA TYPE STRING,
BEGDA TYPE STRING,
SEQNR TYPE STRING,
EGYFR TYPE STRING,
EGYTO TYPE STRING,
EGSNA TYPE STRING,
EGSCT TYPE STRING,
EGSCTXT TYPE STRING,
EGEUC TYPE STRING,
EGEUTXT TYPE STRING,
EGCUR TYPE STRING,
EGTYP TYPE STRING,
EGGRD TYPE STRING,
EGC01 TYPE STRING,
EGC02 TYPE STRING,
EGC03 TYPE STRING,
EGDIS TYPE STRING,
TOTALCST TYPE STRING,
BOOKS TYPE STRING,
TOTAL075 TYPE STRING,
BOARDING TYPE STRING,
ALLOWABLE TYPE STRING,
MAXBT TYPE STRING,
MAXBT_PRO TYPE STRING,
ADVANCE TYPE STRING,
REPAYMNT TYPE STRING,
BALANCE TYPE STRING,
CLAIM TYPE STRING,
PAYMENT TYPE STRING,
WAERS TYPE STRING,
CALC_WAERS TYPE STRING,
EGFAC TYPE STRING,
EGFAC_B TYPE STRING,
EXMNR TYPE STRING,END OF T_EKKO_STR.
DATA: WA_PUNPAD_EGCONS_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_PUNPAD_EGCONS_STR-PERNR sy-vline 
WA_PUNPAD_EGCONS_STR-INFTY sy-vline 
WA_PUNPAD_EGCONS_STR-SUBTY sy-vline 
WA_PUNPAD_EGCONS_STR-OBJPS sy-vline 
WA_PUNPAD_EGCONS_STR-SPRPS sy-vline 
WA_PUNPAD_EGCONS_STR-ENDDA sy-vline 
WA_PUNPAD_EGCONS_STR-BEGDA sy-vline 
WA_PUNPAD_EGCONS_STR-SEQNR sy-vline 
WA_PUNPAD_EGCONS_STR-EGYFR sy-vline 
WA_PUNPAD_EGCONS_STR-EGYTO sy-vline 
WA_PUNPAD_EGCONS_STR-EGSNA sy-vline 
WA_PUNPAD_EGCONS_STR-EGSCT sy-vline 
WA_PUNPAD_EGCONS_STR-EGSCTXT sy-vline 
WA_PUNPAD_EGCONS_STR-EGEUC sy-vline 
WA_PUNPAD_EGCONS_STR-EGEUTXT sy-vline 
WA_PUNPAD_EGCONS_STR-EGCUR sy-vline 
WA_PUNPAD_EGCONS_STR-EGTYP sy-vline 
WA_PUNPAD_EGCONS_STR-EGGRD sy-vline 
WA_PUNPAD_EGCONS_STR-EGC01 sy-vline 
WA_PUNPAD_EGCONS_STR-EGC02 sy-vline 
WA_PUNPAD_EGCONS_STR-EGC03 sy-vline 
WA_PUNPAD_EGCONS_STR-EGDIS sy-vline 
WA_PUNPAD_EGCONS_STR-TOTALCST sy-vline 
WA_PUNPAD_EGCONS_STR-BOOKS sy-vline 
WA_PUNPAD_EGCONS_STR-TOTAL075 sy-vline 
WA_PUNPAD_EGCONS_STR-BOARDING sy-vline 
WA_PUNPAD_EGCONS_STR-ALLOWABLE sy-vline 
WA_PUNPAD_EGCONS_STR-MAXBT sy-vline 
WA_PUNPAD_EGCONS_STR-MAXBT_PRO sy-vline 
WA_PUNPAD_EGCONS_STR-ADVANCE sy-vline 
WA_PUNPAD_EGCONS_STR-REPAYMNT sy-vline 
WA_PUNPAD_EGCONS_STR-BALANCE sy-vline 
WA_PUNPAD_EGCONS_STR-CLAIM sy-vline 
WA_PUNPAD_EGCONS_STR-PAYMENT sy-vline 
WA_PUNPAD_EGCONS_STR-WAERS sy-vline 
WA_PUNPAD_EGCONS_STR-CALC_WAERS sy-vline 
WA_PUNPAD_EGCONS_STR-EGFAC sy-vline 
WA_PUNPAD_EGCONS_STR-EGFAC_B sy-vline 
WA_PUNPAD_EGCONS_STR-EXMNR sy-vline      INTO ld_text SEPARATED BY SPACE.

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