ABAP Select data from SAP table RIHMHIS 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 RIHMHIS 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 RIHMHIS. 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 RIHMHIS 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_RIHMHIS TYPE STANDARD TABLE OF RIHMHIS,
      WA_RIHMHIS TYPE RIHMHIS,
      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: <RIHMHIS> TYPE RIHMHIS.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM RIHMHIS
*  INTO TABLE @DATA(IT_RIHMHIS2).
*--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_RIHMHIS INDEX 1 INTO DATA(WA_RIHMHIS2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<RIHMHIS>-TPLNR = 1.
<RIHMHIS>-PLTXT = 1.
<RIHMHIS>-KOSTL = 1.
<RIHMHIS>-ANLZU = 1.
<RIHMHIS>-EQUNR = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_RIHMHIS-EQTXT, sy-vline,
  WA_RIHMHIS-ISTRU, sy-vline,
  WA_RIHMHIS-MAKTX, sy-vline,
  WA_RIHMHIS-WARPL, sy-vline,
  WA_RIHMHIS-WPTXT, sy-vline,
  WA_RIHMHIS-STRAT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_RIHMHIS 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_RIHMHIS 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_RIHMHIS INTO WA_RIHMHIS.


*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 TPLNR, internal->external for field TPLNR
CALL FUNCTION 'CONVERSION_EXIT_TPLNR_OUTPUT'
  EXPORTING
    input =                      WA_RIHMHIS-TPLNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RIHMHIS-TPLNR.
WRITE:/ 'New Value:', ld_input.

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

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

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

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

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

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

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

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

*Conversion exit NUMCV, internal->external for field VORNR
CALL FUNCTION 'CONVERSION_EXIT_NUMCV_OUTPUT'
  EXPORTING
    input =                      WA_RIHMHIS-VORNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RIHMHIS-VORNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit NUMCV, internal->external for field UVORN
CALL FUNCTION 'CONVERSION_EXIT_NUMCV_OUTPUT'
  EXPORTING
    input =                      WA_RIHMHIS-UVORN
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RIHMHIS-UVORN.
WRITE:/ 'New Value:', ld_input.

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

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

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

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

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

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

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

*Conversion exit ALPHA, internal->external for field INFNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RIHMHIS-INFNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RIHMHIS-INFNR.
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_RIHMHIS_STR, 
TPLNR TYPE STRING,
PLTXT TYPE STRING,
KOSTL TYPE STRING,
ANLZU TYPE STRING,
EQUNR TYPE STRING,
EQTXT TYPE STRING,
ISTRU TYPE STRING,
MAKTX TYPE STRING,
WARPL TYPE STRING,
WPTXT TYPE STRING,
STRAT TYPE STRING,
ERKNZ TYPE STRING,
AEKNZ TYPE STRING,
ERSDT TYPE STRING,
ERNAM TYPE STRING,
AEDAT TYPE STRING,
AENAM TYPE STRING,
ABRHO TYPE STRING,
KUNUM TYPE STRING,
ANZPS TYPE STRING,
ABNUM TYPE STRING,
VSPOS TYPE STRING,
VSNEG TYPE STRING,
TOPOS TYPE STRING,
TONEG TYPE STRING,
SFAKT TYPE STRING,
STICH TYPE STRING,
HORIZ TYPE STRING,
WAPOS TYPE STRING,
PSTXT TYPE STRING,
WPPOS TYPE STRING,
PLNTY TYPE STRING,
PLNNR TYPE STRING,
PLNAL TYPE STRING,
VORNR TYPE STRING,
UVORN TYPE STRING,
LTXA1 TYPE STRING,
LTXA2 TYPE STRING,
ARBPL TYPE STRING,
ARBEI TYPE STRING,
ARBEH TYPE STRING,
DAUNO TYPE STRING,
DAUNE TYPE STRING,
DAUMI TYPE STRING,
DAUME TYPE STRING,
PRZNT TYPE STRING,
LARNT TYPE STRING,
QUALF TYPE STRING,
ANZZL TYPE STRING,
LOGRP TYPE STRING,
BZOFFB TYPE STRING,
OFFSTB TYPE STRING,
EHOFFB TYPE STRING,
BZOFFE TYPE STRING,
OFFSTE TYPE STRING,
EHOFFE TYPE STRING,
SORTL TYPE STRING,
LIFNR TYPE STRING,
PLIFZ TYPE STRING,
PREIS TYPE STRING,
PEINH TYPE STRING,
SAKTO TYPE STRING,
WAERS TYPE STRING,
INFNR TYPE STRING,
EKORG TYPE STRING,
EKGRP TYPE STRING,
MATKL TYPE STRING,END OF T_EKKO_STR.
DATA: WA_RIHMHIS_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_RIHMHIS_STR-TPLNR sy-vline 
WA_RIHMHIS_STR-PLTXT sy-vline 
WA_RIHMHIS_STR-KOSTL sy-vline 
WA_RIHMHIS_STR-ANLZU sy-vline 
WA_RIHMHIS_STR-EQUNR sy-vline 
WA_RIHMHIS_STR-EQTXT sy-vline 
WA_RIHMHIS_STR-ISTRU sy-vline 
WA_RIHMHIS_STR-MAKTX sy-vline 
WA_RIHMHIS_STR-WARPL sy-vline 
WA_RIHMHIS_STR-WPTXT sy-vline 
WA_RIHMHIS_STR-STRAT sy-vline 
WA_RIHMHIS_STR-ERKNZ sy-vline 
WA_RIHMHIS_STR-AEKNZ sy-vline 
WA_RIHMHIS_STR-ERSDT sy-vline 
WA_RIHMHIS_STR-ERNAM sy-vline 
WA_RIHMHIS_STR-AEDAT sy-vline 
WA_RIHMHIS_STR-AENAM sy-vline 
WA_RIHMHIS_STR-ABRHO sy-vline 
WA_RIHMHIS_STR-KUNUM sy-vline 
WA_RIHMHIS_STR-ANZPS sy-vline 
WA_RIHMHIS_STR-ABNUM sy-vline 
WA_RIHMHIS_STR-VSPOS sy-vline 
WA_RIHMHIS_STR-VSNEG sy-vline 
WA_RIHMHIS_STR-TOPOS sy-vline 
WA_RIHMHIS_STR-TONEG sy-vline 
WA_RIHMHIS_STR-SFAKT sy-vline 
WA_RIHMHIS_STR-STICH sy-vline 
WA_RIHMHIS_STR-HORIZ sy-vline 
WA_RIHMHIS_STR-WAPOS sy-vline 
WA_RIHMHIS_STR-PSTXT sy-vline 
WA_RIHMHIS_STR-WPPOS sy-vline 
WA_RIHMHIS_STR-PLNTY sy-vline 
WA_RIHMHIS_STR-PLNNR sy-vline 
WA_RIHMHIS_STR-PLNAL sy-vline 
WA_RIHMHIS_STR-VORNR sy-vline 
WA_RIHMHIS_STR-UVORN sy-vline 
WA_RIHMHIS_STR-LTXA1 sy-vline 
WA_RIHMHIS_STR-LTXA2 sy-vline 
WA_RIHMHIS_STR-ARBPL sy-vline 
WA_RIHMHIS_STR-ARBEI sy-vline 
WA_RIHMHIS_STR-ARBEH sy-vline 
WA_RIHMHIS_STR-DAUNO sy-vline 
WA_RIHMHIS_STR-DAUNE sy-vline 
WA_RIHMHIS_STR-DAUMI sy-vline 
WA_RIHMHIS_STR-DAUME sy-vline 
WA_RIHMHIS_STR-PRZNT sy-vline 
WA_RIHMHIS_STR-LARNT sy-vline 
WA_RIHMHIS_STR-QUALF sy-vline 
WA_RIHMHIS_STR-ANZZL sy-vline 
WA_RIHMHIS_STR-LOGRP sy-vline 
WA_RIHMHIS_STR-BZOFFB sy-vline 
WA_RIHMHIS_STR-OFFSTB sy-vline 
WA_RIHMHIS_STR-EHOFFB sy-vline 
WA_RIHMHIS_STR-BZOFFE sy-vline 
WA_RIHMHIS_STR-OFFSTE sy-vline 
WA_RIHMHIS_STR-EHOFFE sy-vline 
WA_RIHMHIS_STR-SORTL sy-vline 
WA_RIHMHIS_STR-LIFNR sy-vline 
WA_RIHMHIS_STR-PLIFZ sy-vline 
WA_RIHMHIS_STR-PREIS sy-vline 
WA_RIHMHIS_STR-PEINH sy-vline 
WA_RIHMHIS_STR-SAKTO sy-vline 
WA_RIHMHIS_STR-WAERS sy-vline 
WA_RIHMHIS_STR-INFNR sy-vline 
WA_RIHMHIS_STR-EKORG sy-vline 
WA_RIHMHIS_STR-EKGRP sy-vline 
WA_RIHMHIS_STR-MATKL sy-vline      INTO ld_text SEPARATED BY SPACE.

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