ABAP Select data from SAP table THX_DISP_OPT_HDOC into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM THX_DISP_OPT_HDOC
*  INTO TABLE @DATA(IT_THX_DISP_OPT_HDOC2).
*--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_THX_DISP_OPT_HDOC INDEX 1 INTO DATA(WA_THX_DISP_OPT_HDOC2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<THX_DISP_OPT_HDOC>-DEAL_NR = 1.
<THX_DISP_OPT_HDOC>-TRANS_TYPE = 1.
<THX_DISP_OPT_HDOC>-TRANS_TYPE_TXT = 1.
<THX_DISP_OPT_HDOC>-TRANS_CAT = 1.
<THX_DISP_OPT_HDOC>-TRANS_CAT_TXT = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_THX_DISP_OPT_HDOC-PROD_TYPE, sy-vline,
  WA_THX_DISP_OPT_HDOC-PROD_TYPE_TXT, sy-vline,
  WA_THX_DISP_OPT_HDOC-PROD_CAT, sy-vline,
  WA_THX_DISP_OPT_HDOC-PROD_CAT_TXT, sy-vline,
  WA_THX_DISP_OPT_HDOC-PARTNER, sy-vline,
  WA_THX_DISP_OPT_HDOC-PARTNER_TXT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_THX_DISP_OPT_HDOC 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_THX_DISP_OPT_HDOC 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_THX_DISP_OPT_HDOC INTO WA_THX_DISP_OPT_HDOC.


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

*Conversion exit ALPHA, internal->external for field PARTNER
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_THX_DISP_OPT_HDOC-PARTNER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_THX_DISP_OPT_HDOC-PARTNER.
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_THX_DISP_OPT_HDOC_STR, 
DEAL_NR TYPE STRING,
TRANS_TYPE TYPE STRING,
TRANS_TYPE_TXT TYPE STRING,
TRANS_CAT TYPE STRING,
TRANS_CAT_TXT TYPE STRING,
PROD_TYPE TYPE STRING,
PROD_TYPE_TXT TYPE STRING,
PROD_CAT TYPE STRING,
PROD_CAT_TXT TYPE STRING,
PARTNER TYPE STRING,
PARTNER_TXT TYPE STRING,
TERM_START TYPE STRING,
TERM_END TYPE STRING,
BUY_AMOUNT TYPE STRING,
BUY_CRCY TYPE STRING,
BUY_CRCY_TXT TYPE STRING,
SELL_AMOUNT TYPE STRING,
SELL_CRCY TYPE STRING,
SELL_CRCY_TXT TYPE STRING,
VALUE_DATE TYPE STRING,
EXEC_DATE TYPE STRING,
SETTL_IND TYPE STRING,
SETTL_IND_TXT TYPE STRING,
EXERCISE_TYPE TYPE STRING,
EXERCISE_TYPE_TXT TYPE STRING,
STRIKE_CRCY TYPE STRING,
STRIKE_CRCY_TXT TYPE STRING,
STRIKE_AMNT TYPE STRING,
STRIKE_RATE TYPE STRING,
SPUTCAL TYPE STRING,
SPUTCAL_TXT TYPE STRING,
KKURS TYPE STRING,
KKASSA TYPE STRING,
KSWAP TYPE STRING,END OF T_EKKO_STR.
DATA: WA_THX_DISP_OPT_HDOC_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_THX_DISP_OPT_HDOC_STR-DEAL_NR sy-vline 
WA_THX_DISP_OPT_HDOC_STR-TRANS_TYPE sy-vline 
WA_THX_DISP_OPT_HDOC_STR-TRANS_TYPE_TXT sy-vline 
WA_THX_DISP_OPT_HDOC_STR-TRANS_CAT sy-vline 
WA_THX_DISP_OPT_HDOC_STR-TRANS_CAT_TXT sy-vline 
WA_THX_DISP_OPT_HDOC_STR-PROD_TYPE sy-vline 
WA_THX_DISP_OPT_HDOC_STR-PROD_TYPE_TXT sy-vline 
WA_THX_DISP_OPT_HDOC_STR-PROD_CAT sy-vline 
WA_THX_DISP_OPT_HDOC_STR-PROD_CAT_TXT sy-vline 
WA_THX_DISP_OPT_HDOC_STR-PARTNER sy-vline 
WA_THX_DISP_OPT_HDOC_STR-PARTNER_TXT sy-vline 
WA_THX_DISP_OPT_HDOC_STR-TERM_START sy-vline 
WA_THX_DISP_OPT_HDOC_STR-TERM_END sy-vline 
WA_THX_DISP_OPT_HDOC_STR-BUY_AMOUNT sy-vline 
WA_THX_DISP_OPT_HDOC_STR-BUY_CRCY sy-vline 
WA_THX_DISP_OPT_HDOC_STR-BUY_CRCY_TXT sy-vline 
WA_THX_DISP_OPT_HDOC_STR-SELL_AMOUNT sy-vline 
WA_THX_DISP_OPT_HDOC_STR-SELL_CRCY sy-vline 
WA_THX_DISP_OPT_HDOC_STR-SELL_CRCY_TXT sy-vline 
WA_THX_DISP_OPT_HDOC_STR-VALUE_DATE sy-vline 
WA_THX_DISP_OPT_HDOC_STR-EXEC_DATE sy-vline 
WA_THX_DISP_OPT_HDOC_STR-SETTL_IND sy-vline 
WA_THX_DISP_OPT_HDOC_STR-SETTL_IND_TXT sy-vline 
WA_THX_DISP_OPT_HDOC_STR-EXERCISE_TYPE sy-vline 
WA_THX_DISP_OPT_HDOC_STR-EXERCISE_TYPE_TXT sy-vline 
WA_THX_DISP_OPT_HDOC_STR-STRIKE_CRCY sy-vline 
WA_THX_DISP_OPT_HDOC_STR-STRIKE_CRCY_TXT sy-vline 
WA_THX_DISP_OPT_HDOC_STR-STRIKE_AMNT sy-vline 
WA_THX_DISP_OPT_HDOC_STR-STRIKE_RATE sy-vline 
WA_THX_DISP_OPT_HDOC_STR-SPUTCAL sy-vline 
WA_THX_DISP_OPT_HDOC_STR-SPUTCAL_TXT sy-vline 
WA_THX_DISP_OPT_HDOC_STR-KKURS sy-vline 
WA_THX_DISP_OPT_HDOC_STR-KKASSA sy-vline 
WA_THX_DISP_OPT_HDOC_STR-KSWAP sy-vline      INTO ld_text SEPARATED BY SPACE.

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