ABAP Select data from SAP table VCMS_RE_PRT_CST into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM VCMS_RE_PRT_CST
*  INTO TABLE @DATA(IT_VCMS_RE_PRT_CST2).
*--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_VCMS_RE_PRT_CST INDEX 1 INTO DATA(WA_VCMS_RE_PRT_CST2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<VCMS_RE_PRT_CST>-MANDT = 1.
<VCMS_RE_PRT_CST>-PRT_CST_GUID = 1.
<VCMS_RE_PRT_CST>-OBJ_PRT_GUID = 1.
<VCMS_RE_PRT_CST>-PART_ID = 1.
<VCMS_RE_PRT_CST>-COST_TYPE = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_VCMS_RE_PRT_CST-COST_DESC, sy-vline,
  WA_VCMS_RE_PRT_CST-COST_DATE, sy-vline,
  WA_VCMS_RE_PRT_CST-COST_AMT, sy-vline,
  WA_VCMS_RE_PRT_CST-COST_CURR, sy-vline,
  WA_VCMS_RE_PRT_CST-COST_BASE_MEAS, sy-vline,
  WA_VCMS_RE_PRT_CST-PLAN_COST_AMT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_VCMS_RE_PRT_CST 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_VCMS_RE_PRT_CST 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_VCMS_RE_PRT_CST INTO WA_VCMS_RE_PRT_CST.


*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 FLG_DEDUCT_COST
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_VCMS_RE_PRT_CST-FLG_DEDUCT_COST
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_VCMS_RE_PRT_CST-FLG_DEDUCT_COST.
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_VCMS_RE_PRT_CST_STR, 
MANDT TYPE STRING,
PRT_CST_GUID TYPE STRING,
OBJ_PRT_GUID TYPE STRING,
PART_ID TYPE STRING,
COST_TYPE TYPE STRING,
COST_DESC TYPE STRING,
COST_DATE TYPE STRING,
COST_AMT TYPE STRING,
COST_CURR TYPE STRING,
COST_BASE_MEAS TYPE STRING,
PLAN_COST_AMT TYPE STRING,
PLAN_COST_CURR TYPE STRING,
IND_VAL_MAINTAIN TYPE STRING,
CST_MEASURE TYPE STRING,
FLG_DEDUCT_COST TYPE STRING,
DEDUCT_CST_AMT TYPE STRING,
DEDUCT_CST_CURR TYPE STRING,
DEDUCT_CST_PCT TYPE STRING,
CREATED_BY TYPE STRING,
CREATED_DATE TYPE STRING,
CREATED_TIME TYPE STRING,
ENTRY_SRC TYPE STRING,
LAST_CHG_BY TYPE STRING,
LAST_CHG_DATE TYPE STRING,
LAST_CHG_TIME TYPE STRING,
PROCESSING_SRC TYPE STRING,
KZ TYPE STRING,END OF T_EKKO_STR.
DATA: WA_VCMS_RE_PRT_CST_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_VCMS_RE_PRT_CST_STR-MANDT sy-vline 
WA_VCMS_RE_PRT_CST_STR-PRT_CST_GUID sy-vline 
WA_VCMS_RE_PRT_CST_STR-OBJ_PRT_GUID sy-vline 
WA_VCMS_RE_PRT_CST_STR-PART_ID sy-vline 
WA_VCMS_RE_PRT_CST_STR-COST_TYPE sy-vline 
WA_VCMS_RE_PRT_CST_STR-COST_DESC sy-vline 
WA_VCMS_RE_PRT_CST_STR-COST_DATE sy-vline 
WA_VCMS_RE_PRT_CST_STR-COST_AMT sy-vline 
WA_VCMS_RE_PRT_CST_STR-COST_CURR sy-vline 
WA_VCMS_RE_PRT_CST_STR-COST_BASE_MEAS sy-vline 
WA_VCMS_RE_PRT_CST_STR-PLAN_COST_AMT sy-vline 
WA_VCMS_RE_PRT_CST_STR-PLAN_COST_CURR sy-vline 
WA_VCMS_RE_PRT_CST_STR-IND_VAL_MAINTAIN sy-vline 
WA_VCMS_RE_PRT_CST_STR-CST_MEASURE sy-vline 
WA_VCMS_RE_PRT_CST_STR-FLG_DEDUCT_COST sy-vline 
WA_VCMS_RE_PRT_CST_STR-DEDUCT_CST_AMT sy-vline 
WA_VCMS_RE_PRT_CST_STR-DEDUCT_CST_CURR sy-vline 
WA_VCMS_RE_PRT_CST_STR-DEDUCT_CST_PCT sy-vline 
WA_VCMS_RE_PRT_CST_STR-CREATED_BY sy-vline 
WA_VCMS_RE_PRT_CST_STR-CREATED_DATE sy-vline 
WA_VCMS_RE_PRT_CST_STR-CREATED_TIME sy-vline 
WA_VCMS_RE_PRT_CST_STR-ENTRY_SRC sy-vline 
WA_VCMS_RE_PRT_CST_STR-LAST_CHG_BY sy-vline 
WA_VCMS_RE_PRT_CST_STR-LAST_CHG_DATE sy-vline 
WA_VCMS_RE_PRT_CST_STR-LAST_CHG_TIME sy-vline 
WA_VCMS_RE_PRT_CST_STR-PROCESSING_SRC sy-vline 
WA_VCMS_RE_PRT_CST_STR-KZ sy-vline      INTO ld_text SEPARATED BY SPACE.

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