ABAP Select data from SAP table ARO_S_VASSIGNMENTS into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM ARO_S_VASSIGNMENTS
*  INTO TABLE @DATA(IT_ARO_S_VASSIGNMENTS2).
*--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_ARO_S_VASSIGNMENTS INDEX 1 INTO DATA(WA_ARO_S_VASSIGNMENTS2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<ARO_S_VASSIGNMENTS>-CLIENT = 1.
<ARO_S_VASSIGNMENTS>-OBJ_UUID = 1.
<ARO_S_VASSIGNMENTS>-VALIDTO = 1.
<ARO_S_VASSIGNMENTS>-VALIDFROM = 1.
<ARO_S_VASSIGNMENTS>-SOURCE_OBJECT = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_ARO_S_VASSIGNMENTS-OBJ_TYPE, sy-vline,
  WA_ARO_S_VASSIGNMENTS-COMP_CODE, sy-vline,
  WA_ARO_S_VASSIGNMENTS-BUS_AREA, sy-vline,
  WA_ARO_S_VASSIGNMENTS-COSTCENTER, sy-vline,
  WA_ARO_S_VASSIGNMENTS-RESP_COSTCENTER, sy-vline,
  WA_ARO_S_VASSIGNMENTS-ORDERID, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_ARO_S_VASSIGNMENTS 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_ARO_S_VASSIGNMENTS 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_ARO_S_VASSIGNMENTS INTO WA_ARO_S_VASSIGNMENTS.


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

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

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

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

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

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

*Conversion exit IMKEY, internal->external for field RL_EST_KEY
CALL FUNCTION 'CONVERSION_EXIT_IMKEY_OUTPUT'
  EXPORTING
    input =                      WA_ARO_S_VASSIGNMENTS-RL_EST_KEY
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ARO_S_VASSIGNMENTS-RL_EST_KEY.
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_ARO_S_VASSIGNMENTS_STR, 
CLIENT TYPE STRING,
OBJ_UUID TYPE STRING,
VALIDTO TYPE STRING,
VALIDFROM TYPE STRING,
SOURCE_OBJECT TYPE STRING,
OBJ_TYPE TYPE STRING,
COMP_CODE TYPE STRING,
BUS_AREA TYPE STRING,
COSTCENTER TYPE STRING,
RESP_COSTCENTER TYPE STRING,
ORDERID TYPE STRING,
WBS_ELEM TYPE STRING,
ACTTYPE TYPE STRING,
PLANT TYPE STRING,
LOCATION TYPE STRING,
ROOM TYPE STRING,
FUNC_AREA TYPE STRING,
SEGMENT TYPE STRING,
PROFIT_CTR TYPE STRING,
PROF_SEGM TYPE STRING,
RL_EST_KEY TYPE STRING,
TAXJURCODE TYPE STRING,
EXTERNAL_ID TYPE STRING,
CREATEDTMPS TYPE STRING,
CREATEDBY TYPE STRING,
LASTCHGDTMPS TYPE STRING,
LASTCHGDBY TYPE STRING,
KZ TYPE STRING,END OF T_EKKO_STR.
DATA: WA_ARO_S_VASSIGNMENTS_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_ARO_S_VASSIGNMENTS_STR-CLIENT sy-vline 
WA_ARO_S_VASSIGNMENTS_STR-OBJ_UUID sy-vline 
WA_ARO_S_VASSIGNMENTS_STR-VALIDTO sy-vline 
WA_ARO_S_VASSIGNMENTS_STR-VALIDFROM sy-vline 
WA_ARO_S_VASSIGNMENTS_STR-SOURCE_OBJECT sy-vline 
WA_ARO_S_VASSIGNMENTS_STR-OBJ_TYPE sy-vline 
WA_ARO_S_VASSIGNMENTS_STR-COMP_CODE sy-vline 
WA_ARO_S_VASSIGNMENTS_STR-BUS_AREA sy-vline 
WA_ARO_S_VASSIGNMENTS_STR-COSTCENTER sy-vline 
WA_ARO_S_VASSIGNMENTS_STR-RESP_COSTCENTER sy-vline 
WA_ARO_S_VASSIGNMENTS_STR-ORDERID sy-vline 
WA_ARO_S_VASSIGNMENTS_STR-WBS_ELEM sy-vline 
WA_ARO_S_VASSIGNMENTS_STR-ACTTYPE sy-vline 
WA_ARO_S_VASSIGNMENTS_STR-PLANT sy-vline 
WA_ARO_S_VASSIGNMENTS_STR-LOCATION sy-vline 
WA_ARO_S_VASSIGNMENTS_STR-ROOM sy-vline 
WA_ARO_S_VASSIGNMENTS_STR-FUNC_AREA sy-vline 
WA_ARO_S_VASSIGNMENTS_STR-SEGMENT sy-vline 
WA_ARO_S_VASSIGNMENTS_STR-PROFIT_CTR sy-vline 
WA_ARO_S_VASSIGNMENTS_STR-PROF_SEGM sy-vline 
WA_ARO_S_VASSIGNMENTS_STR-RL_EST_KEY sy-vline 
WA_ARO_S_VASSIGNMENTS_STR-TAXJURCODE sy-vline 
WA_ARO_S_VASSIGNMENTS_STR-EXTERNAL_ID sy-vline 
WA_ARO_S_VASSIGNMENTS_STR-CREATEDTMPS sy-vline 
WA_ARO_S_VASSIGNMENTS_STR-CREATEDBY sy-vline 
WA_ARO_S_VASSIGNMENTS_STR-LASTCHGDTMPS sy-vline 
WA_ARO_S_VASSIGNMENTS_STR-LASTCHGDBY sy-vline 
WA_ARO_S_VASSIGNMENTS_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.