ABAP Select data from SAP table VIYCMETERCOSTS into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM VIYCMETERCOSTS
*  INTO TABLE @DATA(IT_VIYCMETERCOSTS2).
*--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_VIYCMETERCOSTS INDEX 1 INTO DATA(WA_VIYCMETERCOSTS2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<VIYCMETERCOSTS>-MANDT = 1.
<VIYCMETERCOSTS>-CAM_MS_GUID = 1.
<VIYCMETERCOSTS>-SETTL_GUID = 1.
<VIYCMETERCOSTS>-EXPLINEGUID = 1.
<VIYCMETERCOSTS>-EXPTYPE = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_VIYCMETERCOSTS-OBJNR, sy-vline,
  WA_VIYCMETERCOSTS-RO_OBJNR, sy-vline,
  WA_VIYCMETERCOSTS-KSTAR, sy-vline,
  WA_VIYCMETERCOSTS-BUKRS, sy-vline,
  WA_VIYCMETERCOSTS-PGOBJNR, sy-vline,
  WA_VIYCMETERCOSTS-PARENT_PGOBJNR, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_VIYCMETERCOSTS 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_VIYCMETERCOSTS 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_VIYCMETERCOSTS INTO WA_VIYCMETERCOSTS.


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

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

*Conversion exit LUNIT, internal->external for field UNITC
CALL FUNCTION 'CONVERSION_EXIT_LUNIT_OUTPUT'
  EXPORTING
    input =                      WA_VIYCMETERCOSTS-UNITC
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_VIYCMETERCOSTS-UNITC.
WRITE:/ 'New Value:', ld_input.

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

*Conversion exit REDAT, internal->external for field PTO
CALL FUNCTION 'CONVERSION_EXIT_REDAT_OUTPUT'
  EXPORTING
    input =                      WA_VIYCMETERCOSTS-PTO
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_VIYCMETERCOSTS-PTO.
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_VIYCMETERCOSTS_STR, 
MANDT TYPE STRING,
CAM_MS_GUID TYPE STRING,
SETTL_GUID TYPE STRING,
EXPLINEGUID TYPE STRING,
EXPTYPE TYPE STRING,
OBJNR TYPE STRING,
RO_OBJNR TYPE STRING,
KSTAR TYPE STRING,
BUKRS TYPE STRING,
PGOBJNR TYPE STRING,
PARENT_PGOBJNR TYPE STRING,
POINT TYPE STRING,
MPTYP TYPE STRING,
ATNAM TYPE STRING,
UNITC TYPE STRING,
CONSUMPTION TYPE STRING,
UNIT TYPE STRING,
METERBASEDSHARE TYPE STRING,
NETAMOUNT TYPE STRING,
AMOUNTTYPE TYPE STRING,
TOTALAMOUNT TYPE STRING,
CURRENCY TYPE STRING,
SHORTFALLPTCP TYPE STRING,
SHORTFALLAMT TYPE STRING,
SHORTFALLLINE TYPE STRING,
METEREXP TYPE STRING,
METEREXPDIST TYPE STRING,
SERVVALIDFROM TYPE STRING,
SERVVALIDTO TYPE STRING,
PFROM TYPE STRING,
PTO TYPE STRING,END OF T_EKKO_STR.
DATA: WA_VIYCMETERCOSTS_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_VIYCMETERCOSTS_STR-MANDT sy-vline 
WA_VIYCMETERCOSTS_STR-CAM_MS_GUID sy-vline 
WA_VIYCMETERCOSTS_STR-SETTL_GUID sy-vline 
WA_VIYCMETERCOSTS_STR-EXPLINEGUID sy-vline 
WA_VIYCMETERCOSTS_STR-EXPTYPE sy-vline 
WA_VIYCMETERCOSTS_STR-OBJNR sy-vline 
WA_VIYCMETERCOSTS_STR-RO_OBJNR sy-vline 
WA_VIYCMETERCOSTS_STR-KSTAR sy-vline 
WA_VIYCMETERCOSTS_STR-BUKRS sy-vline 
WA_VIYCMETERCOSTS_STR-PGOBJNR sy-vline 
WA_VIYCMETERCOSTS_STR-PARENT_PGOBJNR sy-vline 
WA_VIYCMETERCOSTS_STR-POINT sy-vline 
WA_VIYCMETERCOSTS_STR-MPTYP sy-vline 
WA_VIYCMETERCOSTS_STR-ATNAM sy-vline 
WA_VIYCMETERCOSTS_STR-UNITC sy-vline 
WA_VIYCMETERCOSTS_STR-CONSUMPTION sy-vline 
WA_VIYCMETERCOSTS_STR-UNIT sy-vline 
WA_VIYCMETERCOSTS_STR-METERBASEDSHARE sy-vline 
WA_VIYCMETERCOSTS_STR-NETAMOUNT sy-vline 
WA_VIYCMETERCOSTS_STR-AMOUNTTYPE sy-vline 
WA_VIYCMETERCOSTS_STR-TOTALAMOUNT sy-vline 
WA_VIYCMETERCOSTS_STR-CURRENCY sy-vline 
WA_VIYCMETERCOSTS_STR-SHORTFALLPTCP sy-vline 
WA_VIYCMETERCOSTS_STR-SHORTFALLAMT sy-vline 
WA_VIYCMETERCOSTS_STR-SHORTFALLLINE sy-vline 
WA_VIYCMETERCOSTS_STR-METEREXP sy-vline 
WA_VIYCMETERCOSTS_STR-METEREXPDIST sy-vline 
WA_VIYCMETERCOSTS_STR-SERVVALIDFROM sy-vline 
WA_VIYCMETERCOSTS_STR-SERVVALIDTO sy-vline 
WA_VIYCMETERCOSTS_STR-PFROM sy-vline 
WA_VIYCMETERCOSTS_STR-PTO sy-vline      INTO ld_text SEPARATED BY SPACE.

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