ABAP Select data from SAP table ROIUPR_API_SKFV into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM ROIUPR_API_SKFV
*  INTO TABLE @DATA(IT_ROIUPR_API_SKFV2).
*--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_ROIUPR_API_SKFV INDEX 1 INTO DATA(WA_ROIUPR_API_SKFV2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<ROIUPR_API_SKFV>-STYPE = 1.
<ROIUPR_API_SKFV>-TBNAM = 1.
<ROIUPR_API_SKFV>-STAGR = 1.
<ROIUPR_API_SKFV>-SGTXT = 1.
<ROIUPR_API_SKFV>-SMESU = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_ROIUPR_API_SKFV-EKOST, sy-vline,
  WA_ROIUPR_API_SKFV-LSTAR, sy-vline,
  WA_ROIUPR_API_SKFV-EAUFN, sy-vline,
  WA_ROIUPR_API_SKFV-EPROJ, sy-vline,
  WA_ROIUPR_API_SKFV-ENPLN, sy-vline,
  WA_ROIUPR_API_SKFV-EVORG, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_ROIUPR_API_SKFV 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_ROIUPR_API_SKFV 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_ROIUPR_API_SKFV INTO WA_ROIUPR_API_SKFV.


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

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

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

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

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

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

*Conversion exit ALPHA, internal->external for field EPRZN
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_ROIUPR_API_SKFV-EPRZN
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ROIUPR_API_SKFV-EPRZN.
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_ROIUPR_API_SKFV_STR, 
STYPE TYPE STRING,
TBNAM TYPE STRING,
STAGR TYPE STRING,
SGTXT TYPE STRING,
SMESU TYPE STRING,
EKOST TYPE STRING,
LSTAR TYPE STRING,
EAUFN TYPE STRING,
EPROJ TYPE STRING,
ENPLN TYPE STRING,
EVORG TYPE STRING,
EKDAU TYPE STRING,
EKDPO TYPE STRING,
EKSTR TYPE STRING,
EPRZN TYPE STRING,
OIU_CRUSER TYPE STRING,
OIU_TIMESTAMP TYPE STRING,END OF T_EKKO_STR.
DATA: WA_ROIUPR_API_SKFV_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_ROIUPR_API_SKFV_STR-STYPE sy-vline 
WA_ROIUPR_API_SKFV_STR-TBNAM sy-vline 
WA_ROIUPR_API_SKFV_STR-STAGR sy-vline 
WA_ROIUPR_API_SKFV_STR-SGTXT sy-vline 
WA_ROIUPR_API_SKFV_STR-SMESU sy-vline 
WA_ROIUPR_API_SKFV_STR-EKOST sy-vline 
WA_ROIUPR_API_SKFV_STR-LSTAR sy-vline 
WA_ROIUPR_API_SKFV_STR-EAUFN sy-vline 
WA_ROIUPR_API_SKFV_STR-EPROJ sy-vline 
WA_ROIUPR_API_SKFV_STR-ENPLN sy-vline 
WA_ROIUPR_API_SKFV_STR-EVORG sy-vline 
WA_ROIUPR_API_SKFV_STR-EKDAU sy-vline 
WA_ROIUPR_API_SKFV_STR-EKDPO sy-vline 
WA_ROIUPR_API_SKFV_STR-EKSTR sy-vline 
WA_ROIUPR_API_SKFV_STR-EPRZN sy-vline 
WA_ROIUPR_API_SKFV_STR-OIU_CRUSER sy-vline 
WA_ROIUPR_API_SKFV_STR-OIU_TIMESTAMP sy-vline      INTO ld_text SEPARATED BY SPACE.

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