ABAP Select data from SAP table RIHESLL into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM RIHESLL
*  INTO TABLE @DATA(IT_RIHESLL2).
*--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_RIHESLL INDEX 1 INTO DATA(WA_RIHESLL2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<RIHESLL>-EXTROW = 1.
<RIHESLL>-DEL = 1.
<RIHESLL>-SRVPOS = 1.
<RIHESLL>-RANG = 1.
<RIHESLL>-EXTGROUP = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_RIHESLL-KTEXT1, sy-vline,
  WA_RIHESLL-MENGE, sy-vline,
  WA_RIHESLL-MEINS, sy-vline,
  WA_RIHESLL-BRTWR, sy-vline,
  WA_RIHESLL-NETWR, sy-vline,
  WA_RIHESLL-WAERS, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_RIHESLL 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_RIHESLL 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_RIHESLL INTO WA_RIHESLL.


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

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

*Conversion exit ALPHA, internal->external for field BELNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RIHESLL-BELNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RIHESLL-BELNR.
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_RIHESLL_STR, 
EXTROW TYPE STRING,
DEL TYPE STRING,
SRVPOS TYPE STRING,
RANG TYPE STRING,
EXTGROUP TYPE STRING,
KTEXT1 TYPE STRING,
MENGE TYPE STRING,
MEINS TYPE STRING,
BRTWR TYPE STRING,
NETWR TYPE STRING,
WAERS TYPE STRING,
UEBTO TYPE STRING,
UEBTK TYPE STRING,
PEINH TYPE STRING,
MATKL TYPE STRING,
LBNUM TYPE STRING,
AUSGB TYPE STRING,
STLVPOS TYPE STRING,
EXTSRVNO TYPE STRING,
ZIELWERT TYPE STRING,
ACT_MENGE TYPE STRING,
KNT_MENGE TYPE STRING,
PERNR TYPE STRING,
LGART TYPE STRING,
STELL TYPE STRING,
INSDT TYPE STRING,
BUDAT TYPE STRING,
PERSEXT TYPE STRING,
SDATE TYPE STRING,
BEGTIME TYPE STRING,
ENDTIME TYPE STRING,
BELNR TYPE STRING,
CATSCOUNTE TYPE STRING,
STOKZ TYPE STRING,
TXJCD TYPE STRING,
MWSKZ TYPE STRING,
FORMELNR TYPE STRING,
FRMVAL1 TYPE STRING,
FRMVAL2 TYPE STRING,
FRMVAL3 TYPE STRING,
FRMVAL4 TYPE STRING,
FRMVAL5 TYPE STRING,
USERF1_NUM TYPE STRING,
USERF2_NUM TYPE STRING,
USERF1_TXT TYPE STRING,
USERF2_TXT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_RIHESLL_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_RIHESLL_STR-EXTROW sy-vline 
WA_RIHESLL_STR-DEL sy-vline 
WA_RIHESLL_STR-SRVPOS sy-vline 
WA_RIHESLL_STR-RANG sy-vline 
WA_RIHESLL_STR-EXTGROUP sy-vline 
WA_RIHESLL_STR-KTEXT1 sy-vline 
WA_RIHESLL_STR-MENGE sy-vline 
WA_RIHESLL_STR-MEINS sy-vline 
WA_RIHESLL_STR-BRTWR sy-vline 
WA_RIHESLL_STR-NETWR sy-vline 
WA_RIHESLL_STR-WAERS sy-vline 
WA_RIHESLL_STR-UEBTO sy-vline 
WA_RIHESLL_STR-UEBTK sy-vline 
WA_RIHESLL_STR-PEINH sy-vline 
WA_RIHESLL_STR-MATKL sy-vline 
WA_RIHESLL_STR-LBNUM sy-vline 
WA_RIHESLL_STR-AUSGB sy-vline 
WA_RIHESLL_STR-STLVPOS sy-vline 
WA_RIHESLL_STR-EXTSRVNO sy-vline 
WA_RIHESLL_STR-ZIELWERT sy-vline 
WA_RIHESLL_STR-ACT_MENGE sy-vline 
WA_RIHESLL_STR-KNT_MENGE sy-vline 
WA_RIHESLL_STR-PERNR sy-vline 
WA_RIHESLL_STR-LGART sy-vline 
WA_RIHESLL_STR-STELL sy-vline 
WA_RIHESLL_STR-INSDT sy-vline 
WA_RIHESLL_STR-BUDAT sy-vline 
WA_RIHESLL_STR-PERSEXT sy-vline 
WA_RIHESLL_STR-SDATE sy-vline 
WA_RIHESLL_STR-BEGTIME sy-vline 
WA_RIHESLL_STR-ENDTIME sy-vline 
WA_RIHESLL_STR-BELNR sy-vline 
WA_RIHESLL_STR-CATSCOUNTE sy-vline 
WA_RIHESLL_STR-STOKZ sy-vline 
WA_RIHESLL_STR-TXJCD sy-vline 
WA_RIHESLL_STR-MWSKZ sy-vline 
WA_RIHESLL_STR-FORMELNR sy-vline 
WA_RIHESLL_STR-FRMVAL1 sy-vline 
WA_RIHESLL_STR-FRMVAL2 sy-vline 
WA_RIHESLL_STR-FRMVAL3 sy-vline 
WA_RIHESLL_STR-FRMVAL4 sy-vline 
WA_RIHESLL_STR-FRMVAL5 sy-vline 
WA_RIHESLL_STR-USERF1_NUM sy-vline 
WA_RIHESLL_STR-USERF2_NUM sy-vline 
WA_RIHESLL_STR-USERF1_TXT sy-vline 
WA_RIHESLL_STR-USERF2_TXT sy-vline      INTO ld_text SEPARATED BY SPACE.

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