ABAP Select data from SAP table VICDCALC_TAB into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP VICDCALC_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 VICDCALC_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 VICDCALC_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_VICDCALC_TAB TYPE STANDARD TABLE OF VICDCALC_TAB,
      WA_VICDCALC_TAB TYPE VICDCALC_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: <VICDCALC_TAB> TYPE VICDCALC_TAB.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM VICDCALC_TAB
*  INTO TABLE @DATA(IT_VICDCALC_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_VICDCALC_TAB INDEX 1 INTO DATA(WA_VICDCALC_TAB2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<VICDCALC_TAB>-CONDGUID = 1.
<VICDCALC_TAB>-INTRENO = 1.
<VICDCALC_TAB>-OBJNR = 1.
<VICDCALC_TAB>-CONDTYPE = 1.
<VICDCALC_TAB>-CONDVALIDFROM = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_VICDCALC_TAB-VALUEVALIDFROM, sy-vline,
  WA_VICDCALC_TAB-VALUEVALIDTO, sy-vline,
  WA_VICDCALC_TAB-CALCVALUE, sy-vline,
  WA_VICDCALC_TAB-CONDVALUE, sy-vline,
  WA_VICDCALC_TAB-TAXVALUE, sy-vline,
  WA_VICDCALC_TAB-CONDVALUENET, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_VICDCALC_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_VICDCALC_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_VICDCALC_TAB INTO WA_VICDCALC_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 ALPHA, internal->external for field CONDTYPE
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_VICDCALC_TAB-CONDTYPE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_VICDCALC_TAB-CONDTYPE.
WRITE:/ 'New Value:', ld_input.

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

*Conversion exit ALPHA, internal->external for field PARTNER
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_VICDCALC_TAB-PARTNER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_VICDCALC_TAB-PARTNER.
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_VICDCALC_TAB_STR, 
CONDGUID TYPE STRING,
INTRENO TYPE STRING,
OBJNR TYPE STRING,
CONDTYPE TYPE STRING,
CONDVALIDFROM TYPE STRING,
VALUEVALIDFROM TYPE STRING,
VALUEVALIDTO TYPE STRING,
CALCVALUE TYPE STRING,
CONDVALUE TYPE STRING,
TAXVALUE TYPE STRING,
CONDVALUENET TYPE STRING,
CONDVALUEGROSS TYPE STRING,
CONDCURR TYPE STRING,
CALCNUMBER TYPE STRING,
PARTNER TYPE STRING,
PARTNEROBJNR TYPE STRING,
DUEDATE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_VICDCALC_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_VICDCALC_TAB_STR-CONDGUID sy-vline 
WA_VICDCALC_TAB_STR-INTRENO sy-vline 
WA_VICDCALC_TAB_STR-OBJNR sy-vline 
WA_VICDCALC_TAB_STR-CONDTYPE sy-vline 
WA_VICDCALC_TAB_STR-CONDVALIDFROM sy-vline 
WA_VICDCALC_TAB_STR-VALUEVALIDFROM sy-vline 
WA_VICDCALC_TAB_STR-VALUEVALIDTO sy-vline 
WA_VICDCALC_TAB_STR-CALCVALUE sy-vline 
WA_VICDCALC_TAB_STR-CONDVALUE sy-vline 
WA_VICDCALC_TAB_STR-TAXVALUE sy-vline 
WA_VICDCALC_TAB_STR-CONDVALUENET sy-vline 
WA_VICDCALC_TAB_STR-CONDVALUEGROSS sy-vline 
WA_VICDCALC_TAB_STR-CONDCURR sy-vline 
WA_VICDCALC_TAB_STR-CALCNUMBER sy-vline 
WA_VICDCALC_TAB_STR-PARTNER sy-vline 
WA_VICDCALC_TAB_STR-PARTNEROBJNR sy-vline 
WA_VICDCALC_TAB_STR-DUEDATE sy-vline      INTO ld_text SEPARATED BY SPACE.

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