ABAP Select data from SAP table VIYCREFFACTOR_TAB into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM VIYCREFFACTOR_TAB
*  INTO TABLE @DATA(IT_VIYCREFFACTOR_TAB2).
*--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_VIYCREFFACTOR_TAB INDEX 1 INTO DATA(WA_VIYCREFFACTOR_TAB2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<VIYCREFFACTOR_TAB>-VALIDTO = 1.
<VIYCREFFACTOR_TAB>-CAM_PERIOD_GUID = 1.
<VIYCREFFACTOR_TAB>-ROOBJNR = 1.
<VIYCREFFACTOR_TAB>-CNOBJNR = 1.
<VIYCREFFACTOR_TAB>-OCCCNOBJNR = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_VIYCREFFACTOR_TAB-MTOCCUPATION, sy-vline,
  WA_VIYCREFFACTOR_TAB-CHECKREDDENOM, sy-vline,
  WA_VIYCREFFACTOR_TAB-TERMNOPROV, sy-vline,
  WA_VIYCREFFACTOR_TAB-DENMETHOD, sy-vline,
  WA_VIYCREFFACTOR_TAB-DENMETHODINT, sy-vline,
  WA_VIYCREFFACTOR_TAB-OCCUPIEDMEAS, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_VIYCREFFACTOR_TAB 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_VIYCREFFACTOR_TAB 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_VIYCREFFACTOR_TAB INTO WA_VIYCREFFACTOR_TAB.


*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 REDAT, internal->external for field VALIDTO
CALL FUNCTION 'CONVERSION_EXIT_REDAT_OUTPUT'
  EXPORTING
    input =                      WA_VIYCREFFACTOR_TAB-VALIDTO
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_VIYCREFFACTOR_TAB-VALIDTO.
WRITE:/ 'New Value:', ld_input.

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

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

*Conversion exit CUNIT, internal->external for field MEASUNIT
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_VIYCREFFACTOR_TAB-MEASUNIT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_VIYCREFFACTOR_TAB-MEASUNIT.
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_VIYCREFFACTOR_TAB_STR, 
VALIDTO TYPE STRING,
CAM_PERIOD_GUID TYPE STRING,
ROOBJNR TYPE STRING,
CNOBJNR TYPE STRING,
OCCCNOBJNR TYPE STRING,
MTOCCUPATION TYPE STRING,
CHECKREDDENOM TYPE STRING,
TERMNOPROV TYPE STRING,
DENMETHOD TYPE STRING,
DENMETHODINT TYPE STRING,
OCCUPIEDMEAS TYPE STRING,
PLENGTH TYPE STRING,
DENMEAS TYPE STRING,
MEASUNIT TYPE STRING,
MEASVALUE TYPE STRING,
APPORTVALUE TYPE STRING,
DENOMINATOR TYPE STRING,
DENOMTHRESHOLD TYPE STRING,
FIXEDSHARE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_VIYCREFFACTOR_TAB_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_VIYCREFFACTOR_TAB_STR-VALIDTO sy-vline 
WA_VIYCREFFACTOR_TAB_STR-CAM_PERIOD_GUID sy-vline 
WA_VIYCREFFACTOR_TAB_STR-ROOBJNR sy-vline 
WA_VIYCREFFACTOR_TAB_STR-CNOBJNR sy-vline 
WA_VIYCREFFACTOR_TAB_STR-OCCCNOBJNR sy-vline 
WA_VIYCREFFACTOR_TAB_STR-MTOCCUPATION sy-vline 
WA_VIYCREFFACTOR_TAB_STR-CHECKREDDENOM sy-vline 
WA_VIYCREFFACTOR_TAB_STR-TERMNOPROV sy-vline 
WA_VIYCREFFACTOR_TAB_STR-DENMETHOD sy-vline 
WA_VIYCREFFACTOR_TAB_STR-DENMETHODINT sy-vline 
WA_VIYCREFFACTOR_TAB_STR-OCCUPIEDMEAS sy-vline 
WA_VIYCREFFACTOR_TAB_STR-PLENGTH sy-vline 
WA_VIYCREFFACTOR_TAB_STR-DENMEAS sy-vline 
WA_VIYCREFFACTOR_TAB_STR-MEASUNIT sy-vline 
WA_VIYCREFFACTOR_TAB_STR-MEASVALUE sy-vline 
WA_VIYCREFFACTOR_TAB_STR-APPORTVALUE sy-vline 
WA_VIYCREFFACTOR_TAB_STR-DENOMINATOR sy-vline 
WA_VIYCREFFACTOR_TAB_STR-DENOMTHRESHOLD sy-vline 
WA_VIYCREFFACTOR_TAB_STR-FIXEDSHARE sy-vline      INTO ld_text SEPARATED BY SPACE.

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