ABAP Select data from SAP table WBINTRST into internal table

Get Example source ABAP code based on a different SAP table
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Below is a number of ABAP code snippets to demonstrate how to select data from SAP WBINTRST 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 WBINTRST. 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 WBINTRST 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_WBINTRST TYPE STANDARD TABLE OF WBINTRST,
      WA_WBINTRST TYPE WBINTRST,
      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: <WBINTRST> TYPE WBINTRST.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM WBINTRST
*  INTO TABLE @DATA(IT_WBINTRST2).
*--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_WBINTRST INDEX 1 INTO DATA(WA_WBINTRST2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<WBINTRST>-MANDT = 1.
<WBINTRST>-WBELN = 1.
<WBINTRST>-POSNR = 1.
<WBINTRST>-GFLOW = 1.
<WBINTRST>-ENTYP = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_WBINTRST-IDDAT, sy-vline,
  WA_WBINTRST-RPYEA, sy-vline,
  WA_WBINTRST-RPMON, sy-vline,
  WA_WBINTRST-POIVA, sy-vline,
  WA_WBINTRST-POIAD, sy-vline,
  WA_WBINTRST-GFPIC, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_WBINTRST 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_WBINTRST 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_WBINTRST INTO WA_WBINTRST.


*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 ALPHA, internal->external for field WBELN
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_WBINTRST-WBELN
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_WBINTRST-WBELN.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field NWUOM
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_WBINTRST-NWUOM
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_WBINTRST-NWUOM.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field SPUOM
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_WBINTRST-SPUOM
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_WBINTRST-SPUOM.
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_WBINTRST_STR, 
MANDT TYPE STRING,
WBELN TYPE STRING,
POSNR TYPE STRING,
GFLOW TYPE STRING,
ENTYP TYPE STRING,
IDDAT TYPE STRING,
RPYEA TYPE STRING,
RPMON TYPE STRING,
POIVA TYPE STRING,
POIAD TYPE STRING,
GFPIC TYPE STRING,
GFPIR TYPE STRING,
RETFL TYPE STRING,
TGLFL TYPE STRING,
COMCD TYPE STRING,
MATNR TYPE STRING,
PRDES TYPE STRING,
CTYOO TYPE STRING,
REGOO TYPE STRING,
BTTYP TYPE STRING,
INVAL TYPE STRING,
INCUR TYPE STRING,
STVAL TYPE STRING,
STCUR TYPE STRING,
NTWEI TYPE STRING,
NWUOM TYPE STRING,
SPQUA TYPE STRING,
SPUOM TYPE STRING,END OF T_EKKO_STR.
DATA: WA_WBINTRST_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_WBINTRST_STR-MANDT sy-vline 
WA_WBINTRST_STR-WBELN sy-vline 
WA_WBINTRST_STR-POSNR sy-vline 
WA_WBINTRST_STR-GFLOW sy-vline 
WA_WBINTRST_STR-ENTYP sy-vline 
WA_WBINTRST_STR-IDDAT sy-vline 
WA_WBINTRST_STR-RPYEA sy-vline 
WA_WBINTRST_STR-RPMON sy-vline 
WA_WBINTRST_STR-POIVA sy-vline 
WA_WBINTRST_STR-POIAD sy-vline 
WA_WBINTRST_STR-GFPIC sy-vline 
WA_WBINTRST_STR-GFPIR sy-vline 
WA_WBINTRST_STR-RETFL sy-vline 
WA_WBINTRST_STR-TGLFL sy-vline 
WA_WBINTRST_STR-COMCD sy-vline 
WA_WBINTRST_STR-MATNR sy-vline 
WA_WBINTRST_STR-PRDES sy-vline 
WA_WBINTRST_STR-CTYOO sy-vline 
WA_WBINTRST_STR-REGOO sy-vline 
WA_WBINTRST_STR-BTTYP sy-vline 
WA_WBINTRST_STR-INVAL sy-vline 
WA_WBINTRST_STR-INCUR sy-vline 
WA_WBINTRST_STR-STVAL sy-vline 
WA_WBINTRST_STR-STCUR sy-vline 
WA_WBINTRST_STR-NTWEI sy-vline 
WA_WBINTRST_STR-NWUOM sy-vline 
WA_WBINTRST_STR-SPQUA sy-vline 
WA_WBINTRST_STR-SPUOM sy-vline      INTO ld_text SEPARATED BY SPACE.

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