ABAP Select data from SAP table RIHMPOS 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 RIHMPOS 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 RIHMPOS. 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 RIHMPOS 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_RIHMPOS TYPE STANDARD TABLE OF RIHMPOS,
      WA_RIHMPOS TYPE RIHMPOS,
      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: <RIHMPOS> TYPE RIHMPOS.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM RIHMPOS
*  INTO TABLE @DATA(IT_RIHMPOS2).
*--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_RIHMPOS INDEX 1 INTO DATA(WA_RIHMPOS2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<RIHMPOS>-MANDT = 1.
<RIHMPOS>-WAPOS = 1.
<RIHMPOS>-WARPL = 1.
<RIHMPOS>-WSTRA = 1.
<RIHMPOS>-WPPOS = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_RIHMPOS-PSTXT, sy-vline,
  WA_RIHMPOS-EQUNR, sy-vline,
  WA_RIHMPOS-IND_ABRVO, sy-vline,
  WA_RIHMPOS-OBKNR, sy-vline,
  WA_RIHMPOS-ERNAM, sy-vline,
  WA_RIHMPOS-ERSDT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_RIHMPOS 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_RIHMPOS 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_RIHMPOS INTO WA_RIHMPOS.


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

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

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

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

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

*Conversion exit ISOLA, internal->external for field LANGU
CALL FUNCTION 'CONVERSION_EXIT_ISOLA_OUTPUT'
  EXPORTING
    input =                      WA_RIHMPOS-LANGU
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RIHMPOS-LANGU.
WRITE:/ 'New Value:', ld_input.

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

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

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

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

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

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

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

*Conversion exit ABPSN, internal->external for field PSPEL
CALL FUNCTION 'CONVERSION_EXIT_ABPSN_OUTPUT'
  EXPORTING
    input =                      WA_RIHMPOS-PSPEL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RIHMPOS-PSPEL.
WRITE:/ 'New Value:', ld_input.

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

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

*Conversion exit GERNR, internal->external for field SERIALNR
CALL FUNCTION 'CONVERSION_EXIT_GERNR_OUTPUT'
  EXPORTING
    input =                      WA_RIHMPOS-SERIALNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RIHMPOS-SERIALNR.
WRITE:/ 'New Value:', ld_input.

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

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

*Conversion exit ALPHA, internal->external for field DFPS_CP_SYS
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RIHMPOS-DFPS_CP_SYS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RIHMPOS-DFPS_CP_SYS.
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_RIHMPOS_STR, 
MANDT TYPE STRING,
WAPOS TYPE STRING,
WARPL TYPE STRING,
WSTRA TYPE STRING,
WPPOS TYPE STRING,
PSTXT TYPE STRING,
EQUNR TYPE STRING,
IND_ABRVO TYPE STRING,
OBKNR TYPE STRING,
ERNAM TYPE STRING,
ERSDT TYPE STRING,
AEDAT TYPE STRING,
AENAM TYPE STRING,
PLNTY TYPE STRING,
PLNNR TYPE STRING,
PLNAL TYPE STRING,
STATUS TYPE STRING,
LTKNZ TYPE STRING,
WPGRP TYPE STRING,
GEWRK TYPE STRING,
IWERK TYPE STRING,
LANGU TYPE STRING,
ILOAN TYPE STRING,
ILOAI TYPE STRING,
LAUFN TYPE STRING,
BAUTL TYPE STRING,
AUART TYPE STRING,
ILART TYPE STRING,
GSBER TYPE STRING,
TPLNR TYPE STRING,
ABCKZ TYPE STRING,
EQFNR TYPE STRING,
SWERK TYPE STRING,
STORT TYPE STRING,
MSGRP TYPE STRING,
BEBER TYPE STRING,
KOKRS TYPE STRING,
KOSTL TYPE STRING,
BUKRS TYPE STRING,
ANLNR TYPE STRING,
ANLUN TYPE STRING,
DAUFN TYPE STRING,
AUFNR TYPE STRING,
PSPEL TYPE STRING,
ARBPL TYPE STRING,
KDAUF TYPE STRING,
KDPOS TYPE STRING,
VKORG TYPE STRING,
VTWEG TYPE STRING,
SPART TYPE STRING,
EQKTX TYPE STRING,
PLTXT TYPE STRING,
BSTNR TYPE STRING,
BSTPO TYPE STRING,
SERIALNR TYPE STRING,
SERMAT TYPE STRING,
QMART TYPE STRING,
PRIOK TYPE STRING,
MITYP TYPE STRING,
CYCLESEQIND TYPE STRING,
IAUFNR TYPE STRING,
NO_AUFRELKZ TYPE STRING,
DFPS_CP TYPE STRING,
DFPS_CP_SYS TYPE STRING,
DFPS_CP_SYST TYPE STRING,END OF T_EKKO_STR.
DATA: WA_RIHMPOS_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_RIHMPOS_STR-MANDT sy-vline 
WA_RIHMPOS_STR-WAPOS sy-vline 
WA_RIHMPOS_STR-WARPL sy-vline 
WA_RIHMPOS_STR-WSTRA sy-vline 
WA_RIHMPOS_STR-WPPOS sy-vline 
WA_RIHMPOS_STR-PSTXT sy-vline 
WA_RIHMPOS_STR-EQUNR sy-vline 
WA_RIHMPOS_STR-IND_ABRVO sy-vline 
WA_RIHMPOS_STR-OBKNR sy-vline 
WA_RIHMPOS_STR-ERNAM sy-vline 
WA_RIHMPOS_STR-ERSDT sy-vline 
WA_RIHMPOS_STR-AEDAT sy-vline 
WA_RIHMPOS_STR-AENAM sy-vline 
WA_RIHMPOS_STR-PLNTY sy-vline 
WA_RIHMPOS_STR-PLNNR sy-vline 
WA_RIHMPOS_STR-PLNAL sy-vline 
WA_RIHMPOS_STR-STATUS sy-vline 
WA_RIHMPOS_STR-LTKNZ sy-vline 
WA_RIHMPOS_STR-WPGRP sy-vline 
WA_RIHMPOS_STR-GEWRK sy-vline 
WA_RIHMPOS_STR-IWERK sy-vline 
WA_RIHMPOS_STR-LANGU sy-vline 
WA_RIHMPOS_STR-ILOAN sy-vline 
WA_RIHMPOS_STR-ILOAI sy-vline 
WA_RIHMPOS_STR-LAUFN sy-vline 
WA_RIHMPOS_STR-BAUTL sy-vline 
WA_RIHMPOS_STR-AUART sy-vline 
WA_RIHMPOS_STR-ILART sy-vline 
WA_RIHMPOS_STR-GSBER sy-vline 
WA_RIHMPOS_STR-TPLNR sy-vline 
WA_RIHMPOS_STR-ABCKZ sy-vline 
WA_RIHMPOS_STR-EQFNR sy-vline 
WA_RIHMPOS_STR-SWERK sy-vline 
WA_RIHMPOS_STR-STORT sy-vline 
WA_RIHMPOS_STR-MSGRP sy-vline 
WA_RIHMPOS_STR-BEBER sy-vline 
WA_RIHMPOS_STR-KOKRS sy-vline 
WA_RIHMPOS_STR-KOSTL sy-vline 
WA_RIHMPOS_STR-BUKRS sy-vline 
WA_RIHMPOS_STR-ANLNR sy-vline 
WA_RIHMPOS_STR-ANLUN sy-vline 
WA_RIHMPOS_STR-DAUFN sy-vline 
WA_RIHMPOS_STR-AUFNR sy-vline 
WA_RIHMPOS_STR-PSPEL sy-vline 
WA_RIHMPOS_STR-ARBPL sy-vline 
WA_RIHMPOS_STR-KDAUF sy-vline 
WA_RIHMPOS_STR-KDPOS sy-vline 
WA_RIHMPOS_STR-VKORG sy-vline 
WA_RIHMPOS_STR-VTWEG sy-vline 
WA_RIHMPOS_STR-SPART sy-vline 
WA_RIHMPOS_STR-EQKTX sy-vline 
WA_RIHMPOS_STR-PLTXT sy-vline 
WA_RIHMPOS_STR-BSTNR sy-vline 
WA_RIHMPOS_STR-BSTPO sy-vline 
WA_RIHMPOS_STR-SERIALNR sy-vline 
WA_RIHMPOS_STR-SERMAT sy-vline 
WA_RIHMPOS_STR-QMART sy-vline 
WA_RIHMPOS_STR-PRIOK sy-vline 
WA_RIHMPOS_STR-MITYP sy-vline 
WA_RIHMPOS_STR-CYCLESEQIND sy-vline 
WA_RIHMPOS_STR-IAUFNR sy-vline 
WA_RIHMPOS_STR-NO_AUFRELKZ sy-vline 
WA_RIHMPOS_STR-DFPS_CP sy-vline 
WA_RIHMPOS_STR-DFPS_CP_SYS sy-vline 
WA_RIHMPOS_STR-DFPS_CP_SYST sy-vline      INTO ld_text SEPARATED BY SPACE.

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