ABAP Select data from SAP table TOES_HREQ_AUTO_DISPLAY into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM TOES_HREQ_AUTO_DISPLAY
*  INTO TABLE @DATA(IT_TOES_HREQ_AUTO_DISPLAY2).
*--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_TOES_HREQ_AUTO_DISPLAY INDEX 1 INTO DATA(WA_TOES_HREQ_AUTO_DISPLAY2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<TOES_HREQ_AUTO_DISPLAY>-STATUS = 1.
<TOES_HREQ_AUTO_DISPLAY>-INFO_TEXT = 1.
<TOES_HREQ_AUTO_DISPLAY>-PERIOD_DESC = 1.
<TOES_HREQ_AUTO_DISPLAY>-EXP_ITEM_ID = 1.
<TOES_HREQ_AUTO_DISPLAY>-COMPANY_CODE = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_TOES_HREQ_AUTO_DISPLAY-RISKFREE_CURRENCY, sy-vline,
  WA_TOES_HREQ_AUTO_DISPLAY-CURRENCY, sy-vline,
  WA_TOES_HREQ_AUTO_DISPLAY-PORTFOLIO, sy-vline,
  WA_TOES_HREQ_AUTO_DISPLAY-PROFIT_CENTER, sy-vline,
  WA_TOES_HREQ_AUTO_DISPLAY-COST_CENTER, sy-vline,
  WA_TOES_HREQ_AUTO_DISPLAY-WBS_ELEMENT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_TOES_HREQ_AUTO_DISPLAY 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_TOES_HREQ_AUTO_DISPLAY 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_TOES_HREQ_AUTO_DISPLAY INTO WA_TOES_HREQ_AUTO_DISPLAY.


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

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

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

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

*Conversion exit ALPHA, internal->external for field SEGMENT
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_TOES_HREQ_AUTO_DISPLAY-SEGMENT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_TOES_HREQ_AUTO_DISPLAY-SEGMENT.
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_TOES_HREQ_AUTO_DISPLAY_STR, 
STATUS TYPE STRING,
INFO_TEXT TYPE STRING,
PERIOD_DESC TYPE STRING,
EXP_ITEM_ID TYPE STRING,
COMPANY_CODE TYPE STRING,
RISKFREE_CURRENCY TYPE STRING,
CURRENCY TYPE STRING,
PORTFOLIO TYPE STRING,
PROFIT_CENTER TYPE STRING,
COST_CENTER TYPE STRING,
WBS_ELEMENT TYPE STRING,
ON_BEHALF_OF_COMPANY TYPE STRING,
COUNTRY TYPE STRING,
SEGMENT TYPE STRING,
BUSINESS_AREA TYPE STRING,
PERIOD_CLASS TYPE STRING,
PERIOD_START TYPE STRING,
AMOUNT TYPE STRING,
VALUE_DATE TYPE STRING,
EXPIRY_DATE TYPE STRING,
FIXING_DATE TYPE STRING,
HEDGING_CLASS TYPE STRING,
DUE_DATE_SHIFT_DEF TYPE STRING,
DUE_DATE_SHIFT_DEF_TXT TYPE STRING,
EFFECTIVE_HEDGING_DATE TYPE STRING,
INSTRUMENT_CAT TYPE STRING,
SELECTION TYPE STRING,
LT_CELLTAB TYPE STRING,END OF T_EKKO_STR.
DATA: WA_TOES_HREQ_AUTO_DISPLAY_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_TOES_HREQ_AUTO_DISPLAY_STR-STATUS sy-vline 
WA_TOES_HREQ_AUTO_DISPLAY_STR-INFO_TEXT sy-vline 
WA_TOES_HREQ_AUTO_DISPLAY_STR-PERIOD_DESC sy-vline 
WA_TOES_HREQ_AUTO_DISPLAY_STR-EXP_ITEM_ID sy-vline 
WA_TOES_HREQ_AUTO_DISPLAY_STR-COMPANY_CODE sy-vline 
WA_TOES_HREQ_AUTO_DISPLAY_STR-RISKFREE_CURRENCY sy-vline 
WA_TOES_HREQ_AUTO_DISPLAY_STR-CURRENCY sy-vline 
WA_TOES_HREQ_AUTO_DISPLAY_STR-PORTFOLIO sy-vline 
WA_TOES_HREQ_AUTO_DISPLAY_STR-PROFIT_CENTER sy-vline 
WA_TOES_HREQ_AUTO_DISPLAY_STR-COST_CENTER sy-vline 
WA_TOES_HREQ_AUTO_DISPLAY_STR-WBS_ELEMENT sy-vline 
WA_TOES_HREQ_AUTO_DISPLAY_STR-ON_BEHALF_OF_COMPANY sy-vline 
WA_TOES_HREQ_AUTO_DISPLAY_STR-COUNTRY sy-vline 
WA_TOES_HREQ_AUTO_DISPLAY_STR-SEGMENT sy-vline 
WA_TOES_HREQ_AUTO_DISPLAY_STR-BUSINESS_AREA sy-vline 
WA_TOES_HREQ_AUTO_DISPLAY_STR-PERIOD_CLASS sy-vline 
WA_TOES_HREQ_AUTO_DISPLAY_STR-PERIOD_START sy-vline 
WA_TOES_HREQ_AUTO_DISPLAY_STR-AMOUNT sy-vline 
WA_TOES_HREQ_AUTO_DISPLAY_STR-VALUE_DATE sy-vline 
WA_TOES_HREQ_AUTO_DISPLAY_STR-EXPIRY_DATE sy-vline 
WA_TOES_HREQ_AUTO_DISPLAY_STR-FIXING_DATE sy-vline 
WA_TOES_HREQ_AUTO_DISPLAY_STR-HEDGING_CLASS sy-vline 
WA_TOES_HREQ_AUTO_DISPLAY_STR-DUE_DATE_SHIFT_DEF sy-vline 
WA_TOES_HREQ_AUTO_DISPLAY_STR-DUE_DATE_SHIFT_DEF_TXT sy-vline 
WA_TOES_HREQ_AUTO_DISPLAY_STR-EFFECTIVE_HEDGING_DATE sy-vline 
WA_TOES_HREQ_AUTO_DISPLAY_STR-INSTRUMENT_CAT sy-vline 
WA_TOES_HREQ_AUTO_DISPLAY_STR-SELECTION sy-vline 
WA_TOES_HREQ_AUTO_DISPLAY_STR-LT_CELLTAB sy-vline      INTO ld_text SEPARATED BY SPACE.

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