ABAP Select data from SAP table VTS_CF_ASGT into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM VTS_CF_ASGT
*  INTO TABLE @DATA(IT_VTS_CF_ASGT2).
*--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_VTS_CF_ASGT INDEX 1 INTO DATA(WA_VTS_CF_ASGT2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<VTS_CF_ASGT>-KEY_DATABIN = 1.
<VTS_CF_ASGT>-INDEX_DATABIN = 1.
<VTS_CF_ASGT>-INDEX_ASGT = 1.
<VTS_CF_ASGT>-XNWHR_ASGT = 1.
<VTS_CF_ASGT>-XZBETR_ASGT = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_VTS_CF_ASGT-MANDT, sy-vline,
  WA_VTS_CF_ASGT-FLOWUUID, sy-vline,
  WA_VTS_CF_ASGT-ASSIGNMENT, sy-vline,
  WA_VTS_CF_ASGT-FUND, sy-vline,
  WA_VTS_CF_ASGT-GRANT_NBR, sy-vline,
  WA_VTS_CF_ASGT-WBS_ELEMENT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_VTS_CF_ASGT 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_VTS_CF_ASGT 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_VTS_CF_ASGT INTO WA_VTS_CF_ASGT.


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

*Conversion exit ABPSP, internal->external for field WBS_ELEMENT
CALL FUNCTION 'CONVERSION_EXIT_ABPSP_OUTPUT'
  EXPORTING
    input =                      WA_VTS_CF_ASGT-WBS_ELEMENT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_VTS_CF_ASGT-WBS_ELEMENT.
WRITE:/ 'New Value:', ld_input.

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

*Conversion exit ALPHA, internal->external for field PROFIT_CENTER
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_VTS_CF_ASGT-PROFIT_CENTER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_VTS_CF_ASGT-PROFIT_CENTER.
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_VTS_CF_ASGT_STR, 
KEY_DATABIN TYPE STRING,
INDEX_DATABIN TYPE STRING,
INDEX_ASGT TYPE STRING,
XNWHR_ASGT TYPE STRING,
XZBETR_ASGT TYPE STRING,
MANDT TYPE STRING,
FLOWUUID TYPE STRING,
ASSIGNMENT TYPE STRING,
FUND TYPE STRING,
GRANT_NBR TYPE STRING,
WBS_ELEMENT TYPE STRING,
COST_CENTER TYPE STRING,
PROFIT_CENTER TYPE STRING,
FUNCTIONAL_AREA TYPE STRING,
NOMINAL_AMT TYPE STRING,
NOMINAL_CURR TYPE STRING,
UNITS TYPE STRING,
PAYMENT_AMT TYPE STRING,
PAYMENT_CURR TYPE STRING,
PERCENTAGE TYPE STRING,
CRUSER TYPE STRING,
DCRDAT TYPE STRING,
TCRTIM TYPE STRING,
UPUSER TYPE STRING,
DUPDAT TYPE STRING,
TUPTIM TYPE STRING,END OF T_EKKO_STR.
DATA: WA_VTS_CF_ASGT_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_VTS_CF_ASGT_STR-KEY_DATABIN sy-vline 
WA_VTS_CF_ASGT_STR-INDEX_DATABIN sy-vline 
WA_VTS_CF_ASGT_STR-INDEX_ASGT sy-vline 
WA_VTS_CF_ASGT_STR-XNWHR_ASGT sy-vline 
WA_VTS_CF_ASGT_STR-XZBETR_ASGT sy-vline 
WA_VTS_CF_ASGT_STR-MANDT sy-vline 
WA_VTS_CF_ASGT_STR-FLOWUUID sy-vline 
WA_VTS_CF_ASGT_STR-ASSIGNMENT sy-vline 
WA_VTS_CF_ASGT_STR-FUND sy-vline 
WA_VTS_CF_ASGT_STR-GRANT_NBR sy-vline 
WA_VTS_CF_ASGT_STR-WBS_ELEMENT sy-vline 
WA_VTS_CF_ASGT_STR-COST_CENTER sy-vline 
WA_VTS_CF_ASGT_STR-PROFIT_CENTER sy-vline 
WA_VTS_CF_ASGT_STR-FUNCTIONAL_AREA sy-vline 
WA_VTS_CF_ASGT_STR-NOMINAL_AMT sy-vline 
WA_VTS_CF_ASGT_STR-NOMINAL_CURR sy-vline 
WA_VTS_CF_ASGT_STR-UNITS sy-vline 
WA_VTS_CF_ASGT_STR-PAYMENT_AMT sy-vline 
WA_VTS_CF_ASGT_STR-PAYMENT_CURR sy-vline 
WA_VTS_CF_ASGT_STR-PERCENTAGE sy-vline 
WA_VTS_CF_ASGT_STR-CRUSER sy-vline 
WA_VTS_CF_ASGT_STR-DCRDAT sy-vline 
WA_VTS_CF_ASGT_STR-TCRTIM sy-vline 
WA_VTS_CF_ASGT_STR-UPUSER sy-vline 
WA_VTS_CF_ASGT_STR-DUPDAT sy-vline 
WA_VTS_CF_ASGT_STR-TUPTIM sy-vline      INTO ld_text SEPARATED BY SPACE.

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