ABAP Select data from SAP table V_TACECOMP_S4 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP V_TACECOMP_S4 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 V_TACECOMP_S4. 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 V_TACECOMP_S4 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_V_TACECOMP_S4 TYPE STANDARD TABLE OF V_TACECOMP_S4,
      WA_V_TACECOMP_S4 TYPE V_TACECOMP_S4,
      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: <V_TACECOMP_S4> TYPE V_TACECOMP_S4.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_V_TACECOMP_S4.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM V_TACECOMP_S4
  INTO TABLE IT_V_TACECOMP_S4.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM V_TACECOMP_S4
*  INTO TABLE @DATA(IT_V_TACECOMP_S42).
*--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_V_TACECOMP_S4 INDEX 1 INTO DATA(WA_V_TACECOMP_S42).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_V_TACECOMP_S4 ASSIGNING <V_TACECOMP_S4>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<V_TACECOMP_S4>-MANDT = 1.
<V_TACECOMP_S4>-COMP = 1.
<V_TACECOMP_S4>-SSTRUC_CO = 1.
<V_TACECOMP_S4>-REFKEY_TAB_NAME = 1.
<V_TACECOMP_S4>-RESULT_LIST_PP = 1.

ENDLOOP.

LOOP AT IT_V_TACECOMP_S4 INTO WA_V_TACECOMP_S4.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_V_TACECOMP_S4-RESULT_LIST_AP, sy-vline,
  WA_V_TACECOMP_S4-BW_EXTRACT_CALC, sy-vline,
  WA_V_TACECOMP_S4-BW_EXTRACT_POST, sy-vline,
  WA_V_TACECOMP_S4-TXT50, sy-vline,
  WA_V_TACECOMP_S4-ALLOWED_ASSGMTS, sy-vline,
  WA_V_TACECOMP_S4-REF_KEY_FIELDS, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_V_TACECOMP_S4 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_V_TACECOMP_S4 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_V_TACECOMP_S4 INTO WA_V_TACECOMP_S4.


*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.
ENDFORM. 

*&---------------------------------------------------------------------*
*& Form process_as_string_field_values
*&---------------------------------------------------------------------*
FORM process_as_string_field_values CHANGING p_EKKO LIKE wa_EKKO.

TYPES: BEGIN OF T_V_TACECOMP_S4_STR, 
MANDT TYPE STRING,
COMP TYPE STRING,
SSTRUC_CO TYPE STRING,
REFKEY_TAB_NAME TYPE STRING,
RESULT_LIST_PP TYPE STRING,
RESULT_LIST_AP TYPE STRING,
BW_EXTRACT_CALC TYPE STRING,
BW_EXTRACT_POST TYPE STRING,
TXT50 TYPE STRING,
ALLOWED_ASSGMTS TYPE STRING,
REF_KEY_FIELDS TYPE STRING,
REF_SUBKEY_FLDS TYPE STRING,
PARAM_FIELDS TYPE STRING,
TCODEPFIX TYPE STRING,
TREE_STRUCTURE TYPE STRING,
MANUAL_CHANGE TYPE STRING,
REF_KEY_DEL TYPE STRING,
ASSGMTS_EXTERNAL TYPE STRING,
RVWAPPRV_ENABLED TYPE STRING,
S4ACE_USED TYPE STRING,
PLAN_ACT_SUPPORTED TYPE STRING,
ACCDET_TABNAME TYPE STRING,
ACCDET_CUST_VIEW TYPE STRING,
BRF_FUNC_CO TYPE STRING,
EDIT_IN_COBL TYPE STRING,
AVAILABLE_IN_CLOUD TYPE STRING,
QTY_BASED_CALC_SUPPORTED TYPE STRING,
PREMTRE_FDATE_OFFSET TYPE STRING,END OF T_EKKO_STR.
DATA: WA_V_TACECOMP_S4_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_V_TACECOMP_S4_STR-MANDT sy-vline 
WA_V_TACECOMP_S4_STR-COMP sy-vline 
WA_V_TACECOMP_S4_STR-SSTRUC_CO sy-vline 
WA_V_TACECOMP_S4_STR-REFKEY_TAB_NAME sy-vline 
WA_V_TACECOMP_S4_STR-RESULT_LIST_PP sy-vline 
WA_V_TACECOMP_S4_STR-RESULT_LIST_AP sy-vline 
WA_V_TACECOMP_S4_STR-BW_EXTRACT_CALC sy-vline 
WA_V_TACECOMP_S4_STR-BW_EXTRACT_POST sy-vline 
WA_V_TACECOMP_S4_STR-TXT50 sy-vline 
WA_V_TACECOMP_S4_STR-ALLOWED_ASSGMTS sy-vline 
WA_V_TACECOMP_S4_STR-REF_KEY_FIELDS sy-vline 
WA_V_TACECOMP_S4_STR-REF_SUBKEY_FLDS sy-vline 
WA_V_TACECOMP_S4_STR-PARAM_FIELDS sy-vline 
WA_V_TACECOMP_S4_STR-TCODEPFIX sy-vline 
WA_V_TACECOMP_S4_STR-TREE_STRUCTURE sy-vline 
WA_V_TACECOMP_S4_STR-MANUAL_CHANGE sy-vline 
WA_V_TACECOMP_S4_STR-REF_KEY_DEL sy-vline 
WA_V_TACECOMP_S4_STR-ASSGMTS_EXTERNAL sy-vline 
WA_V_TACECOMP_S4_STR-RVWAPPRV_ENABLED sy-vline 
WA_V_TACECOMP_S4_STR-S4ACE_USED sy-vline 
WA_V_TACECOMP_S4_STR-PLAN_ACT_SUPPORTED sy-vline 
WA_V_TACECOMP_S4_STR-ACCDET_TABNAME sy-vline 
WA_V_TACECOMP_S4_STR-ACCDET_CUST_VIEW sy-vline 
WA_V_TACECOMP_S4_STR-BRF_FUNC_CO sy-vline 
WA_V_TACECOMP_S4_STR-EDIT_IN_COBL sy-vline 
WA_V_TACECOMP_S4_STR-AVAILABLE_IN_CLOUD sy-vline 
WA_V_TACECOMP_S4_STR-QTY_BASED_CALC_SUPPORTED sy-vline 
WA_V_TACECOMP_S4_STR-PREMTRE_FDATE_OFFSET sy-vline      INTO ld_text SEPARATED BY SPACE.

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