ABAP Select data from SAP table AVICEPROCESS into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM AVICEPROCESS
*  INTO TABLE @DATA(IT_AVICEPROCESS2).
*--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_AVICEPROCESS INDEX 1 INTO DATA(WA_AVICEPROCESS2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<AVICEPROCESS>-MANDT = 1.
<AVICEPROCESS>-INTRENO = 1.
<AVICEPROCESS>-RULEGUID = 1.
<AVICEPROCESS>-PROCESSGUID = 1.
<AVICEPROCESS>-PROCESSGUIDPREVIOUS = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_AVICEPROCESS-TERMNO, sy-vline,
  WA_AVICEPROCESS-PROCESSREASON, sy-vline,
  WA_AVICEPROCESS-PROCESSBEHAVIOR, sy-vline,
  WA_AVICEPROCESS-CEFROM, sy-vline,
  WA_AVICEPROCESS-PROCESSNOTE, sy-vline,
  WA_AVICEPROCESS-CNVALUE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_AVICEPROCESS 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_AVICEPROCESS 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_AVICEPROCESS INTO WA_AVICEPROCESS.


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

*Conversion exit REDAT, internal->external for field PROBABLEEND
CALL FUNCTION 'CONVERSION_EXIT_REDAT_OUTPUT'
  EXPORTING
    input =                      WA_AVICEPROCESS-PROBABLEEND
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_AVICEPROCESS-PROBABLEEND.
WRITE:/ 'New Value:', ld_input.

*Conversion exit REDAT, internal->external for field ABSOLUTEEND
CALL FUNCTION 'CONVERSION_EXIT_REDAT_OUTPUT'
  EXPORTING
    input =                      WA_AVICEPROCESS-ABSOLUTEEND
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_AVICEPROCESS-ABSOLUTEEND.
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_AVICEPROCESS_STR, 
MANDT TYPE STRING,
INTRENO TYPE STRING,
RULEGUID TYPE STRING,
PROCESSGUID TYPE STRING,
PROCESSGUIDPREVIOUS TYPE STRING,
TERMNO TYPE STRING,
PROCESSREASON TYPE STRING,
PROCESSBEHAVIOR TYPE STRING,
CEFROM TYPE STRING,
PROCESSNOTE TYPE STRING,
CNVALUE TYPE STRING,
NPV TYPE STRING,
REMAININGCAPITAL TYPE STRING,
CURR TYPE STRING,
RERF TYPE STRING,
DERF TYPE STRING,
TERF TYPE STRING,
REHER TYPE STRING,
RBEAR TYPE STRING,
DBEAR TYPE STRING,
TBEAR TYPE STRING,
RBHER TYPE STRING,
ISINITIALPROCESS TYPE STRING,
SLBEGIN TYPE STRING,
SLPAYMENT TYPE STRING,
PROBABLEEND TYPE STRING,
ABSOLUTEEND TYPE STRING,
VALUATIONENGINE TYPE STRING,
KZ TYPE STRING,END OF T_EKKO_STR.
DATA: WA_AVICEPROCESS_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_AVICEPROCESS_STR-MANDT sy-vline 
WA_AVICEPROCESS_STR-INTRENO sy-vline 
WA_AVICEPROCESS_STR-RULEGUID sy-vline 
WA_AVICEPROCESS_STR-PROCESSGUID sy-vline 
WA_AVICEPROCESS_STR-PROCESSGUIDPREVIOUS sy-vline 
WA_AVICEPROCESS_STR-TERMNO sy-vline 
WA_AVICEPROCESS_STR-PROCESSREASON sy-vline 
WA_AVICEPROCESS_STR-PROCESSBEHAVIOR sy-vline 
WA_AVICEPROCESS_STR-CEFROM sy-vline 
WA_AVICEPROCESS_STR-PROCESSNOTE sy-vline 
WA_AVICEPROCESS_STR-CNVALUE sy-vline 
WA_AVICEPROCESS_STR-NPV sy-vline 
WA_AVICEPROCESS_STR-REMAININGCAPITAL sy-vline 
WA_AVICEPROCESS_STR-CURR sy-vline 
WA_AVICEPROCESS_STR-RERF sy-vline 
WA_AVICEPROCESS_STR-DERF sy-vline 
WA_AVICEPROCESS_STR-TERF sy-vline 
WA_AVICEPROCESS_STR-REHER sy-vline 
WA_AVICEPROCESS_STR-RBEAR sy-vline 
WA_AVICEPROCESS_STR-DBEAR sy-vline 
WA_AVICEPROCESS_STR-TBEAR sy-vline 
WA_AVICEPROCESS_STR-RBHER sy-vline 
WA_AVICEPROCESS_STR-ISINITIALPROCESS sy-vline 
WA_AVICEPROCESS_STR-SLBEGIN sy-vline 
WA_AVICEPROCESS_STR-SLPAYMENT sy-vline 
WA_AVICEPROCESS_STR-PROBABLEEND sy-vline 
WA_AVICEPROCESS_STR-ABSOLUTEEND sy-vline 
WA_AVICEPROCESS_STR-VALUATIONENGINE sy-vline 
WA_AVICEPROCESS_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.