ABAP Select data from SAP table ROIJRDINV into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM ROIJRDINV
*  INTO TABLE @DATA(IT_ROIJRDINV2).
*--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_ROIJRDINV INDEX 1 INTO DATA(WA_ROIJRDINV2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<ROIJRDINV>-MEINS = 1.
<ROIJRDINV>-MATNR = 1.
<ROIJRDINV>-WERKS = 1.
<ROIJRDINV>-LGORT = 1.
<ROIJRDINV>-CHARG = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_ROIJRDINV-SOBKZ, sy-vline,
  WA_ROIJRDINV-SPERR, sy-vline,
  WA_ROIJRDINV-LABST, sy-vline,
  WA_ROIJRDINV-UMLME, sy-vline,
  WA_ROIJRDINV-INSME, sy-vline,
  WA_ROIJRDINV-EINME, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_ROIJRDINV 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_ROIJRDINV 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_ROIJRDINV INTO WA_ROIJRDINV.


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

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

*Conversion exit CUNIT, internal->external for field CHAME
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_ROIJRDINV-CHAME
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ROIJRDINV-CHAME.
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_ROIJRDINV_STR, 
MEINS TYPE STRING,
MATNR TYPE STRING,
WERKS TYPE STRING,
LGORT TYPE STRING,
CHARG TYPE STRING,
SOBKZ TYPE STRING,
SPERR TYPE STRING,
LABST TYPE STRING,
UMLME TYPE STRING,
INSME TYPE STRING,
EINME TYPE STRING,
SPEME TYPE STRING,
RETME TYPE STRING,
VMLAB TYPE STRING,
VMUML TYPE STRING,
VMINS TYPE STRING,
VMEIN TYPE STRING,
VMSPE TYPE STRING,
VMRET TYPE STRING,
KZILL TYPE STRING,
KZVLL TYPE STRING,
KZILQ TYPE STRING,
KZVLQ TYPE STRING,
KZILE TYPE STRING,
KZVLE TYPE STRING,
KZILS TYPE STRING,
KZVLS TYPE STRING,
BWTAR TYPE STRING,
VFDAT TYPE STRING,
LWEDT TYPE STRING,
ZUSCH TYPE STRING,
ZUSTD TYPE STRING,
CHAME TYPE STRING,
SPERC TYPE STRING,
CLABS TYPE STRING,
CUMLM TYPE STRING,
CINSM TYPE STRING,
CEINM TYPE STRING,
CSPEM TYPE STRING,
CRETM TYPE STRING,
CVMLA TYPE STRING,
CVMUM TYPE STRING,
CVMIN TYPE STRING,
CVMEI TYPE STRING,
CVMSP TYPE STRING,
CVMRE TYPE STRING,
KZICL TYPE STRING,
KZICQ TYPE STRING,
KZICE TYPE STRING,
KZICS TYPE STRING,
FELDN TYPE STRING,
VERAB TYPE STRING,END OF T_EKKO_STR.
DATA: WA_ROIJRDINV_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_ROIJRDINV_STR-MEINS sy-vline 
WA_ROIJRDINV_STR-MATNR sy-vline 
WA_ROIJRDINV_STR-WERKS sy-vline 
WA_ROIJRDINV_STR-LGORT sy-vline 
WA_ROIJRDINV_STR-CHARG sy-vline 
WA_ROIJRDINV_STR-SOBKZ sy-vline 
WA_ROIJRDINV_STR-SPERR sy-vline 
WA_ROIJRDINV_STR-LABST sy-vline 
WA_ROIJRDINV_STR-UMLME sy-vline 
WA_ROIJRDINV_STR-INSME sy-vline 
WA_ROIJRDINV_STR-EINME sy-vline 
WA_ROIJRDINV_STR-SPEME sy-vline 
WA_ROIJRDINV_STR-RETME sy-vline 
WA_ROIJRDINV_STR-VMLAB sy-vline 
WA_ROIJRDINV_STR-VMUML sy-vline 
WA_ROIJRDINV_STR-VMINS sy-vline 
WA_ROIJRDINV_STR-VMEIN sy-vline 
WA_ROIJRDINV_STR-VMSPE sy-vline 
WA_ROIJRDINV_STR-VMRET sy-vline 
WA_ROIJRDINV_STR-KZILL sy-vline 
WA_ROIJRDINV_STR-KZVLL sy-vline 
WA_ROIJRDINV_STR-KZILQ sy-vline 
WA_ROIJRDINV_STR-KZVLQ sy-vline 
WA_ROIJRDINV_STR-KZILE sy-vline 
WA_ROIJRDINV_STR-KZVLE sy-vline 
WA_ROIJRDINV_STR-KZILS sy-vline 
WA_ROIJRDINV_STR-KZVLS sy-vline 
WA_ROIJRDINV_STR-BWTAR sy-vline 
WA_ROIJRDINV_STR-VFDAT sy-vline 
WA_ROIJRDINV_STR-LWEDT sy-vline 
WA_ROIJRDINV_STR-ZUSCH sy-vline 
WA_ROIJRDINV_STR-ZUSTD sy-vline 
WA_ROIJRDINV_STR-CHAME sy-vline 
WA_ROIJRDINV_STR-SPERC sy-vline 
WA_ROIJRDINV_STR-CLABS sy-vline 
WA_ROIJRDINV_STR-CUMLM sy-vline 
WA_ROIJRDINV_STR-CINSM sy-vline 
WA_ROIJRDINV_STR-CEINM sy-vline 
WA_ROIJRDINV_STR-CSPEM sy-vline 
WA_ROIJRDINV_STR-CRETM sy-vline 
WA_ROIJRDINV_STR-CVMLA sy-vline 
WA_ROIJRDINV_STR-CVMUM sy-vline 
WA_ROIJRDINV_STR-CVMIN sy-vline 
WA_ROIJRDINV_STR-CVMEI sy-vline 
WA_ROIJRDINV_STR-CVMSP sy-vline 
WA_ROIJRDINV_STR-CVMRE sy-vline 
WA_ROIJRDINV_STR-KZICL sy-vline 
WA_ROIJRDINV_STR-KZICQ sy-vline 
WA_ROIJRDINV_STR-KZICE sy-vline 
WA_ROIJRDINV_STR-KZICS sy-vline 
WA_ROIJRDINV_STR-FELDN sy-vline 
WA_ROIJRDINV_STR-VERAB sy-vline      INTO ld_text SEPARATED BY SPACE.

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