ABAP Select data from SAP table RFVIISMVKUEGRUVIMI26 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP RFVIISMVKUEGRUVIMI26 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 RFVIISMVKUEGRUVIMI26. 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 RFVIISMVKUEGRUVIMI26 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_RFVIISMVKUEGRUVIMI26 TYPE STANDARD TABLE OF RFVIISMVKUEGRUVIMI26,
      WA_RFVIISMVKUEGRUVIMI26 TYPE RFVIISMVKUEGRUVIMI26,
      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: <RFVIISMVKUEGRUVIMI26> TYPE RFVIISMVKUEGRUVIMI26.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_RFVIISMVKUEGRUVIMI26.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM RFVIISMVKUEGRUVIMI26
  INTO TABLE IT_RFVIISMVKUEGRUVIMI26.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM RFVIISMVKUEGRUVIMI26
*  INTO TABLE @DATA(IT_RFVIISMVKUEGRUVIMI262).
*--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_RFVIISMVKUEGRUVIMI26 INDEX 1 INTO DATA(WA_RFVIISMVKUEGRUVIMI262).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_RFVIISMVKUEGRUVIMI26 ASSIGNING <RFVIISMVKUEGRUVIMI26>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<RFVIISMVKUEGRUVIMI26>-MANDT = 1.
<RFVIISMVKUEGRUVIMI26>-BUKRS = 1.
<RFVIISMVKUEGRUVIMI26>-SMIVE = 1.
<RFVIISMVKUEGRUVIMI26>-SWENR = 1.
<RFVIISMVKUEGRUVIMI26>-SMENR = 1.

ENDLOOP.

LOOP AT IT_RFVIISMVKUEGRUVIMI26 INTO WA_RFVIISMVKUEGRUVIMI26.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_RFVIISMVKUEGRUVIMI26-DMIBEG, sy-vline,
  WA_RFVIISMVKUEGRUVIMI26-DMIEND, sy-vline,
  WA_RFVIISMVKUEGRUVIMI26-DKUEZU, sy-vline,
  WA_RFVIISMVKUEGRUVIMI26-DEINKUE, sy-vline,
  WA_RFVIISMVKUEGRUVIMI26-SKUEART, sy-vline,
  WA_RFVIISMVKUEGRUVIMI26-XLKUEART, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_RFVIISMVKUEGRUVIMI26 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_RFVIISMVKUEGRUVIMI26 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_RFVIISMVKUEGRUVIMI26 INTO WA_RFVIISMVKUEGRUVIMI26.


*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 SMIVE
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RFVIISMVKUEGRUVIMI26-SMIVE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RFVIISMVKUEGRUVIMI26-SMIVE.
WRITE:/ 'New Value:', ld_input.

*Conversion exit SWENR, internal->external for field SWENR
CALL FUNCTION 'CONVERSION_EXIT_SWENR_OUTPUT'
  EXPORTING
    input =                      WA_RFVIISMVKUEGRUVIMI26-SWENR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RFVIISMVKUEGRUVIMI26-SWENR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit SMENR, internal->external for field SMENR
CALL FUNCTION 'CONVERSION_EXIT_SMENR_OUTPUT'
  EXPORTING
    input =                      WA_RFVIISMVKUEGRUVIMI26-SMENR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RFVIISMVKUEGRUVIMI26-SMENR.
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_RFVIISMVKUEGRUVIMI26_STR, 
MANDT TYPE STRING,
BUKRS TYPE STRING,
SMIVE TYPE STRING,
SWENR TYPE STRING,
SMENR TYPE STRING,
DMIBEG TYPE STRING,
DMIEND TYPE STRING,
DKUEZU TYPE STRING,
DEINKUE TYPE STRING,
SKUEART TYPE STRING,
XLKUEART TYPE STRING,
RKUEGRU TYPE STRING,
XLKUEGRU TYPE STRING,
RABLGRU TYPE STRING,
XMABLGR TYPE STRING,
DKUZUG TYPE STRING,
DKUABG TYPE STRING,
DAKTKU TYPE STRING,
DSTKU TYPE STRING,
DDRKU TYPE STRING,
DWIKU TYPE STRING,
DKREUEB TYPE STRING,
DKUERCK TYPE STRING,
RERF TYPE STRING,
DERF TYPE STRING,
TERF TYPE STRING,
REHER TYPE STRING,
RBEAR TYPE STRING,
DBEAR TYPE STRING,
TBEAR TYPE STRING,
RBHER TYPE STRING,
DKUEWU TYPE STRING,
DKGSTZL TYPE STRING,
LEERGD TYPE STRING,
XLEERGD TYPE STRING,
DFAENACH TYPE STRING,
SMVART TYPE STRING,
XMBEZ1 TYPE STRING,
SMVANART TYPE STRING,
XMBEZ2 TYPE STRING,
SKUEKEY TYPE STRING,
ANZAHL TYPE STRING,END OF T_EKKO_STR.
DATA: WA_RFVIISMVKUEGRUVIMI26_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_RFVIISMVKUEGRUVIMI26_STR-MANDT sy-vline 
WA_RFVIISMVKUEGRUVIMI26_STR-BUKRS sy-vline 
WA_RFVIISMVKUEGRUVIMI26_STR-SMIVE sy-vline 
WA_RFVIISMVKUEGRUVIMI26_STR-SWENR sy-vline 
WA_RFVIISMVKUEGRUVIMI26_STR-SMENR sy-vline 
WA_RFVIISMVKUEGRUVIMI26_STR-DMIBEG sy-vline 
WA_RFVIISMVKUEGRUVIMI26_STR-DMIEND sy-vline 
WA_RFVIISMVKUEGRUVIMI26_STR-DKUEZU sy-vline 
WA_RFVIISMVKUEGRUVIMI26_STR-DEINKUE sy-vline 
WA_RFVIISMVKUEGRUVIMI26_STR-SKUEART sy-vline 
WA_RFVIISMVKUEGRUVIMI26_STR-XLKUEART sy-vline 
WA_RFVIISMVKUEGRUVIMI26_STR-RKUEGRU sy-vline 
WA_RFVIISMVKUEGRUVIMI26_STR-XLKUEGRU sy-vline 
WA_RFVIISMVKUEGRUVIMI26_STR-RABLGRU sy-vline 
WA_RFVIISMVKUEGRUVIMI26_STR-XMABLGR sy-vline 
WA_RFVIISMVKUEGRUVIMI26_STR-DKUZUG sy-vline 
WA_RFVIISMVKUEGRUVIMI26_STR-DKUABG sy-vline 
WA_RFVIISMVKUEGRUVIMI26_STR-DAKTKU sy-vline 
WA_RFVIISMVKUEGRUVIMI26_STR-DSTKU sy-vline 
WA_RFVIISMVKUEGRUVIMI26_STR-DDRKU sy-vline 
WA_RFVIISMVKUEGRUVIMI26_STR-DWIKU sy-vline 
WA_RFVIISMVKUEGRUVIMI26_STR-DKREUEB sy-vline 
WA_RFVIISMVKUEGRUVIMI26_STR-DKUERCK sy-vline 
WA_RFVIISMVKUEGRUVIMI26_STR-RERF sy-vline 
WA_RFVIISMVKUEGRUVIMI26_STR-DERF sy-vline 
WA_RFVIISMVKUEGRUVIMI26_STR-TERF sy-vline 
WA_RFVIISMVKUEGRUVIMI26_STR-REHER sy-vline 
WA_RFVIISMVKUEGRUVIMI26_STR-RBEAR sy-vline 
WA_RFVIISMVKUEGRUVIMI26_STR-DBEAR sy-vline 
WA_RFVIISMVKUEGRUVIMI26_STR-TBEAR sy-vline 
WA_RFVIISMVKUEGRUVIMI26_STR-RBHER sy-vline 
WA_RFVIISMVKUEGRUVIMI26_STR-DKUEWU sy-vline 
WA_RFVIISMVKUEGRUVIMI26_STR-DKGSTZL sy-vline 
WA_RFVIISMVKUEGRUVIMI26_STR-LEERGD sy-vline 
WA_RFVIISMVKUEGRUVIMI26_STR-XLEERGD sy-vline 
WA_RFVIISMVKUEGRUVIMI26_STR-DFAENACH sy-vline 
WA_RFVIISMVKUEGRUVIMI26_STR-SMVART sy-vline 
WA_RFVIISMVKUEGRUVIMI26_STR-XMBEZ1 sy-vline 
WA_RFVIISMVKUEGRUVIMI26_STR-SMVANART sy-vline 
WA_RFVIISMVKUEGRUVIMI26_STR-XMBEZ2 sy-vline 
WA_RFVIISMVKUEGRUVIMI26_STR-SKUEKEY sy-vline 
WA_RFVIISMVKUEGRUVIMI26_STR-ANZAHL sy-vline      INTO ld_text SEPARATED BY SPACE.

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