ABAP Select data from SAP table ISAUTO_RAPSEGTAB into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM ISAUTO_RAPSEGTAB
*  INTO TABLE @DATA(IT_ISAUTO_RAPSEGTAB2).
*--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_ISAUTO_RAPSEGTAB INDEX 1 INTO DATA(WA_ISAUTO_RAPSEGTAB2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<ISAUTO_RAPSEGTAB>-SELFL = 1.
<ISAUTO_RAPSEGTAB>-COLOR = 1.
<ISAUTO_RAPSEGTAB>-BLOCK = 1.
<ISAUTO_RAPSEGTAB>-XBLNR = 1.
<ISAUTO_RAPSEGTAB>-BLDAT = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_ISAUTO_RAPSEGTAB-LFBNR, sy-vline,
  WA_ISAUTO_RAPSEGTAB-LFPOS, sy-vline,
  WA_ISAUTO_RAPSEGTAB-LFGJA, sy-vline,
  WA_ISAUTO_RAPSEGTAB-BUDAT, sy-vline,
  WA_ISAUTO_RAPSEGTAB-CPUDT, sy-vline,
  WA_ISAUTO_RAPSEGTAB-REMNG, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_ISAUTO_RAPSEGTAB 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_ISAUTO_RAPSEGTAB 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_ISAUTO_RAPSEGTAB INTO WA_ISAUTO_RAPSEGTAB.


*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 LFBNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_ISAUTO_RAPSEGTAB-LFBNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ISAUTO_RAPSEGTAB-LFBNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit GJAHR, internal->external for field LFGJA
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_ISAUTO_RAPSEGTAB-LFGJA
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ISAUTO_RAPSEGTAB-LFGJA.
WRITE:/ 'New Value:', ld_input.

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

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

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

*Conversion exit GJAHR, internal->external for field GJAHR
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_ISAUTO_RAPSEGTAB-GJAHR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ISAUTO_RAPSEGTAB-GJAHR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field FIBEL
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_ISAUTO_RAPSEGTAB-FIBEL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ISAUTO_RAPSEGTAB-FIBEL.
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_ISAUTO_RAPSEGTAB_STR, 
SELFL TYPE STRING,
COLOR TYPE STRING,
BLOCK TYPE STRING,
XBLNR TYPE STRING,
BLDAT TYPE STRING,
LFBNR TYPE STRING,
LFPOS TYPE STRING,
LFGJA TYPE STRING,
BUDAT TYPE STRING,
CPUDT TYPE STRING,
REMNG TYPE STRING,
MEINS TYPE STRING,
BPMNG TYPE STRING,
BPRME TYPE STRING,
WERTA TYPE STRING,
WERTN TYPE STRING,
WERTD TYPE STRING,
WAERS TYPE STRING,
BELNR TYPE STRING,
GJAHR TYPE STRING,
SHKZG TYPE STRING,
MWSKZ TYPE STRING,
XRECH TYPE STRING,
FIBEL TYPE STRING,
CHARG TYPE STRING,
TAX_COUNTRY TYPE STRING,
ZEILE TYPE STRING,
MSGTY TYPE STRING,
TEXT TYPE STRING,
ARBGB TYPE STRING,
TXTNR TYPE STRING,
MSGV1 TYPE STRING,
MSGV2 TYPE STRING,
MSGV3 TYPE STRING,
MSGV4 TYPE STRING,END OF T_EKKO_STR.
DATA: WA_ISAUTO_RAPSEGTAB_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_ISAUTO_RAPSEGTAB_STR-SELFL sy-vline 
WA_ISAUTO_RAPSEGTAB_STR-COLOR sy-vline 
WA_ISAUTO_RAPSEGTAB_STR-BLOCK sy-vline 
WA_ISAUTO_RAPSEGTAB_STR-XBLNR sy-vline 
WA_ISAUTO_RAPSEGTAB_STR-BLDAT sy-vline 
WA_ISAUTO_RAPSEGTAB_STR-LFBNR sy-vline 
WA_ISAUTO_RAPSEGTAB_STR-LFPOS sy-vline 
WA_ISAUTO_RAPSEGTAB_STR-LFGJA sy-vline 
WA_ISAUTO_RAPSEGTAB_STR-BUDAT sy-vline 
WA_ISAUTO_RAPSEGTAB_STR-CPUDT sy-vline 
WA_ISAUTO_RAPSEGTAB_STR-REMNG sy-vline 
WA_ISAUTO_RAPSEGTAB_STR-MEINS sy-vline 
WA_ISAUTO_RAPSEGTAB_STR-BPMNG sy-vline 
WA_ISAUTO_RAPSEGTAB_STR-BPRME sy-vline 
WA_ISAUTO_RAPSEGTAB_STR-WERTA sy-vline 
WA_ISAUTO_RAPSEGTAB_STR-WERTN sy-vline 
WA_ISAUTO_RAPSEGTAB_STR-WERTD sy-vline 
WA_ISAUTO_RAPSEGTAB_STR-WAERS sy-vline 
WA_ISAUTO_RAPSEGTAB_STR-BELNR sy-vline 
WA_ISAUTO_RAPSEGTAB_STR-GJAHR sy-vline 
WA_ISAUTO_RAPSEGTAB_STR-SHKZG sy-vline 
WA_ISAUTO_RAPSEGTAB_STR-MWSKZ sy-vline 
WA_ISAUTO_RAPSEGTAB_STR-XRECH sy-vline 
WA_ISAUTO_RAPSEGTAB_STR-FIBEL sy-vline 
WA_ISAUTO_RAPSEGTAB_STR-CHARG sy-vline 
WA_ISAUTO_RAPSEGTAB_STR-TAX_COUNTRY sy-vline 
WA_ISAUTO_RAPSEGTAB_STR-ZEILE sy-vline 
WA_ISAUTO_RAPSEGTAB_STR-MSGTY sy-vline 
WA_ISAUTO_RAPSEGTAB_STR-TEXT sy-vline 
WA_ISAUTO_RAPSEGTAB_STR-ARBGB sy-vline 
WA_ISAUTO_RAPSEGTAB_STR-TXTNR sy-vline 
WA_ISAUTO_RAPSEGTAB_STR-MSGV1 sy-vline 
WA_ISAUTO_RAPSEGTAB_STR-MSGV2 sy-vline 
WA_ISAUTO_RAPSEGTAB_STR-MSGV3 sy-vline 
WA_ISAUTO_RAPSEGTAB_STR-MSGV4 sy-vline      INTO ld_text SEPARATED BY SPACE.

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