ABAP Select data from SAP table RIHAUFM into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM RIHAUFM
*  INTO TABLE @DATA(IT_RIHAUFM2).
*--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_RIHAUFM INDEX 1 INTO DATA(WA_RIHAUFM2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<RIHAUFM>-MANDT = 1.
<RIHAUFM>-MBLNR = 1.
<RIHAUFM>-MJAHR = 1.
<RIHAUFM>-ZEILE = 1.
<RIHAUFM>-BLDAT = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_RIHAUFM-BUDAT, sy-vline,
  WA_RIHAUFM-BWART, sy-vline,
  WA_RIHAUFM-MATNR, sy-vline,
  WA_RIHAUFM-WERKS, sy-vline,
  WA_RIHAUFM-LGORT, sy-vline,
  WA_RIHAUFM-CHARG, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_RIHAUFM 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_RIHAUFM 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_RIHAUFM INTO WA_RIHAUFM.


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

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

*Conversion exit MATN1, internal->external for field MATNR
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_RIHAUFM-MATNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RIHAUFM-MATNR.
WRITE:/ 'New Value:', ld_input.

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

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

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

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

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

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

*Conversion exit ABPSP, internal->external for field PS_PSP_PNR
CALL FUNCTION 'CONVERSION_EXIT_ABPSP_OUTPUT'
  EXPORTING
    input =                      WA_RIHAUFM-PS_PSP_PNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RIHAUFM-PS_PSP_PNR.
WRITE:/ 'New Value:', ld_input.

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

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

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

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

*Conversion exit NUMCV, internal->external for field VORNR
CALL FUNCTION 'CONVERSION_EXIT_NUMCV_OUTPUT'
  EXPORTING
    input =                      WA_RIHAUFM-VORNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RIHAUFM-VORNR.
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_RIHAUFM_STR, 
MANDT TYPE STRING,
MBLNR TYPE STRING,
MJAHR TYPE STRING,
ZEILE TYPE STRING,
BLDAT TYPE STRING,
BUDAT TYPE STRING,
BWART TYPE STRING,
MATNR TYPE STRING,
WERKS TYPE STRING,
LGORT TYPE STRING,
CHARG TYPE STRING,
SOBKZ TYPE STRING,
LIFNR TYPE STRING,
KDAUF TYPE STRING,
KDPOS TYPE STRING,
SHKZG TYPE STRING,
DMBTR TYPE STRING,
WAERS TYPE STRING,
BWTAR TYPE STRING,
MENGE TYPE STRING,
MEINS TYPE STRING,
ERFMG TYPE STRING,
ERFME TYPE STRING,
EBELN TYPE STRING,
EBELP TYPE STRING,
ELIKZ TYPE STRING,
WEMPF TYPE STRING,
ABLAD TYPE STRING,
AUFNR TYPE STRING,
RSNUM TYPE STRING,
RSPOS TYPE STRING,
RSART TYPE STRING,
KZEAR TYPE STRING,
KZBEW TYPE STRING,
WEUNB TYPE STRING,
PS_PSP_PNR TYPE STRING,
NPLNR TYPE STRING,
AUFPL TYPE STRING,
APLZL TYPE STRING,
SAKTO TYPE STRING,
KOKRS TYPE STRING,
/CWM/MENGE TYPE STRING,
/CWM/MEINS TYPE STRING,
/CWM/ERFMG TYPE STRING,
/CWM/ERFME TYPE STRING,
WTY_IND TYPE STRING,
MATXT TYPE STRING,
WBKNZ TYPE STRING,
VORNR TYPE STRING,END OF T_EKKO_STR.
DATA: WA_RIHAUFM_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_RIHAUFM_STR-MANDT sy-vline 
WA_RIHAUFM_STR-MBLNR sy-vline 
WA_RIHAUFM_STR-MJAHR sy-vline 
WA_RIHAUFM_STR-ZEILE sy-vline 
WA_RIHAUFM_STR-BLDAT sy-vline 
WA_RIHAUFM_STR-BUDAT sy-vline 
WA_RIHAUFM_STR-BWART sy-vline 
WA_RIHAUFM_STR-MATNR sy-vline 
WA_RIHAUFM_STR-WERKS sy-vline 
WA_RIHAUFM_STR-LGORT sy-vline 
WA_RIHAUFM_STR-CHARG sy-vline 
WA_RIHAUFM_STR-SOBKZ sy-vline 
WA_RIHAUFM_STR-LIFNR sy-vline 
WA_RIHAUFM_STR-KDAUF sy-vline 
WA_RIHAUFM_STR-KDPOS sy-vline 
WA_RIHAUFM_STR-SHKZG sy-vline 
WA_RIHAUFM_STR-DMBTR sy-vline 
WA_RIHAUFM_STR-WAERS sy-vline 
WA_RIHAUFM_STR-BWTAR sy-vline 
WA_RIHAUFM_STR-MENGE sy-vline 
WA_RIHAUFM_STR-MEINS sy-vline 
WA_RIHAUFM_STR-ERFMG sy-vline 
WA_RIHAUFM_STR-ERFME sy-vline 
WA_RIHAUFM_STR-EBELN sy-vline 
WA_RIHAUFM_STR-EBELP sy-vline 
WA_RIHAUFM_STR-ELIKZ sy-vline 
WA_RIHAUFM_STR-WEMPF sy-vline 
WA_RIHAUFM_STR-ABLAD sy-vline 
WA_RIHAUFM_STR-AUFNR sy-vline 
WA_RIHAUFM_STR-RSNUM sy-vline 
WA_RIHAUFM_STR-RSPOS sy-vline 
WA_RIHAUFM_STR-RSART sy-vline 
WA_RIHAUFM_STR-KZEAR sy-vline 
WA_RIHAUFM_STR-KZBEW sy-vline 
WA_RIHAUFM_STR-WEUNB sy-vline 
WA_RIHAUFM_STR-PS_PSP_PNR sy-vline 
WA_RIHAUFM_STR-NPLNR sy-vline 
WA_RIHAUFM_STR-AUFPL sy-vline 
WA_RIHAUFM_STR-APLZL sy-vline 
WA_RIHAUFM_STR-SAKTO sy-vline 
WA_RIHAUFM_STR-KOKRS sy-vline 
WA_RIHAUFM_STR-/CWM/MENGE sy-vline 
WA_RIHAUFM_STR-/CWM/MEINS sy-vline 
WA_RIHAUFM_STR-/CWM/ERFMG sy-vline 
WA_RIHAUFM_STR-/CWM/ERFME sy-vline 
WA_RIHAUFM_STR-WTY_IND sy-vline 
WA_RIHAUFM_STR-MATXT sy-vline 
WA_RIHAUFM_STR-WBKNZ sy-vline 
WA_RIHAUFM_STR-VORNR sy-vline      INTO ld_text SEPARATED BY SPACE.

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