ABAP Select data from SAP table IVARCNFTBLLVAL into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM IVARCNFTBLLVAL
*  INTO TABLE @DATA(IT_IVARCNFTBLLVAL2).
*--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_IVARCNFTBLLVAL INDEX 1 INTO DATA(WA_IVARCNFTBLLVAL2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<IVARCNFTBLLVAL>-MANDT = 1.
<IVARCNFTBLLVAL>-VARCONFIGNTBLID = 1.
<IVARCNFTBLLVAL>-VARCONFIGNTBLLINENUMBER = 1.
<IVARCNFTBLLVAL>-TIMEINTERVALNUMBER = 1.
<IVARCNFTBLLVAL>-CHARCINTERNALID = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_IVARCNFTBLLVAL-VARCONFIGNTBLVALUENUMBER, sy-vline,
  WA_IVARCNFTBLLVAL-VARCONFIGNTBLNAME, sy-vline,
  WA_IVARCNFTBLLVAL-CHARACTERISTIC, sy-vline,
  WA_IVARCNFTBLLVAL-CHANGENUMBER, sy-vline,
  WA_IVARCNFTBLLVAL-CHARCVALUE, sy-vline,
  WA_IVARCNFTBLLVAL-CHARCVALUEINTERVALTYPE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_IVARCNFTBLLVAL 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_IVARCNFTBLLVAL 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_IVARCNFTBLLVAL INTO WA_IVARCNFTBLLVAL.


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

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

*Conversion exit CUNIT, internal->external for field CHARCTONUMERICVALUEUNIT
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_IVARCNFTBLLVAL-CHARCTONUMERICVALUEUNIT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IVARCNFTBLLVAL-CHARCTONUMERICVALUEUNIT.
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_IVARCNFTBLLVAL_STR, 
MANDT TYPE STRING,
VARCONFIGNTBLID TYPE STRING,
VARCONFIGNTBLLINENUMBER TYPE STRING,
TIMEINTERVALNUMBER TYPE STRING,
CHARCINTERNALID TYPE STRING,
VARCONFIGNTBLVALUENUMBER TYPE STRING,
VARCONFIGNTBLNAME TYPE STRING,
CHARACTERISTIC TYPE STRING,
CHANGENUMBER TYPE STRING,
CHARCVALUE TYPE STRING,
CHARCVALUEINTERVALTYPE TYPE STRING,
CHARCFROMNUMERICVALUE TYPE STRING,
CHARCTONUMERICVALUE TYPE STRING,
CHARCFROMNUMERICVALUEUNIT TYPE STRING,
CHARCTONUMERICVALUEUNIT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_IVARCNFTBLLVAL_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_IVARCNFTBLLVAL_STR-MANDT sy-vline 
WA_IVARCNFTBLLVAL_STR-VARCONFIGNTBLID sy-vline 
WA_IVARCNFTBLLVAL_STR-VARCONFIGNTBLLINENUMBER sy-vline 
WA_IVARCNFTBLLVAL_STR-TIMEINTERVALNUMBER sy-vline 
WA_IVARCNFTBLLVAL_STR-CHARCINTERNALID sy-vline 
WA_IVARCNFTBLLVAL_STR-VARCONFIGNTBLVALUENUMBER sy-vline 
WA_IVARCNFTBLLVAL_STR-VARCONFIGNTBLNAME sy-vline 
WA_IVARCNFTBLLVAL_STR-CHARACTERISTIC sy-vline 
WA_IVARCNFTBLLVAL_STR-CHANGENUMBER sy-vline 
WA_IVARCNFTBLLVAL_STR-CHARCVALUE sy-vline 
WA_IVARCNFTBLLVAL_STR-CHARCVALUEINTERVALTYPE sy-vline 
WA_IVARCNFTBLLVAL_STR-CHARCFROMNUMERICVALUE sy-vline 
WA_IVARCNFTBLLVAL_STR-CHARCTONUMERICVALUE sy-vline 
WA_IVARCNFTBLLVAL_STR-CHARCFROMNUMERICVALUEUNIT sy-vline 
WA_IVARCNFTBLLVAL_STR-CHARCTONUMERICVALUEUNIT sy-vline      INTO ld_text SEPARATED BY SPACE.

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