ABAP Select data from SAP table OTC_CONV_AFINKO into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM OTC_CONV_AFINKO
*  INTO TABLE @DATA(IT_OTC_CONV_AFINKO2).
*--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_OTC_CONV_AFINKO INDEX 1 INTO DATA(WA_OTC_CONV_AFINKO2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<OTC_CONV_AFINKO>-MANDT = 1.
<OTC_CONV_AFINKO>-BUKRS = 1.
<OTC_CONV_AFINKO>-RGATT = 1.
<OTC_CONV_AFINKO>-RFHA = 1.
<OTC_CONV_AFINKO>-RFHAZU = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_OTC_CONV_AFINKO-RKONDGR, sy-vline,
  WA_OTC_CONV_AFINKO-RKOND, sy-vline,
  WA_OTC_CONV_AFINKO-DGUEL_KP, sy-vline,
  WA_OTC_CONV_AFINKO-NSTUFE, sy-vline,
  WA_OTC_CONV_AFINKO-SFORMREF, sy-vline,
  WA_OTC_CONV_AFINKO-SVARNAME, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_OTC_CONV_AFINKO 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_OTC_CONV_AFINKO 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_OTC_CONV_AFINKO INTO WA_OTC_CONV_AFINKO.


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

*Conversion exit ALPHA, internal->external for field RFHA
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_OTC_CONV_AFINKO-RFHA
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_OTC_CONV_AFINKO-RFHA.
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_OTC_CONV_AFINKO_STR, 
MANDT TYPE STRING,
BUKRS TYPE STRING,
RGATT TYPE STRING,
RFHA TYPE STRING,
RFHAZU TYPE STRING,
RKONDGR TYPE STRING,
RKOND TYPE STRING,
DGUEL_KP TYPE STRING,
NSTUFE TYPE STRING,
SFORMREF TYPE STRING,
SVARNAME TYPE STRING,
CRUSER TYPE STRING,
DCRDAT TYPE STRING,
TCRTIM TYPE STRING,
UPUSER TYPE STRING,
DUPDAT TYPE STRING,
TUPTIM TYPE STRING,
PKOND TYPE STRING,
SZSREF TYPE STRING,
SKALID TYPE STRING,
SKALID2 TYPE STRING,
SHERKUNFT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_OTC_CONV_AFINKO_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_OTC_CONV_AFINKO_STR-MANDT sy-vline 
WA_OTC_CONV_AFINKO_STR-BUKRS sy-vline 
WA_OTC_CONV_AFINKO_STR-RGATT sy-vline 
WA_OTC_CONV_AFINKO_STR-RFHA sy-vline 
WA_OTC_CONV_AFINKO_STR-RFHAZU sy-vline 
WA_OTC_CONV_AFINKO_STR-RKONDGR sy-vline 
WA_OTC_CONV_AFINKO_STR-RKOND sy-vline 
WA_OTC_CONV_AFINKO_STR-DGUEL_KP sy-vline 
WA_OTC_CONV_AFINKO_STR-NSTUFE sy-vline 
WA_OTC_CONV_AFINKO_STR-SFORMREF sy-vline 
WA_OTC_CONV_AFINKO_STR-SVARNAME sy-vline 
WA_OTC_CONV_AFINKO_STR-CRUSER sy-vline 
WA_OTC_CONV_AFINKO_STR-DCRDAT sy-vline 
WA_OTC_CONV_AFINKO_STR-TCRTIM sy-vline 
WA_OTC_CONV_AFINKO_STR-UPUSER sy-vline 
WA_OTC_CONV_AFINKO_STR-DUPDAT sy-vline 
WA_OTC_CONV_AFINKO_STR-TUPTIM sy-vline 
WA_OTC_CONV_AFINKO_STR-PKOND sy-vline 
WA_OTC_CONV_AFINKO_STR-SZSREF sy-vline 
WA_OTC_CONV_AFINKO_STR-SKALID sy-vline 
WA_OTC_CONV_AFINKO_STR-SKALID2 sy-vline 
WA_OTC_CONV_AFINKO_STR-SHERKUNFT sy-vline      INTO ld_text SEPARATED BY SPACE.

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