ABAP Select data from SAP table HRTNM_S_HISTO_ALV_IT1686 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP HRTNM_S_HISTO_ALV_IT1686 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 HRTNM_S_HISTO_ALV_IT1686. 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 HRTNM_S_HISTO_ALV_IT1686 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_HRTNM_S_HISTO_ALV_IT1686 TYPE STANDARD TABLE OF HRTNM_S_HISTO_ALV_IT1686,
      WA_HRTNM_S_HISTO_ALV_IT1686 TYPE HRTNM_S_HISTO_ALV_IT1686,
      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: <HRTNM_S_HISTO_ALV_IT1686> TYPE HRTNM_S_HISTO_ALV_IT1686.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_HRTNM_S_HISTO_ALV_IT1686.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM HRTNM_S_HISTO_ALV_IT1686
  INTO TABLE IT_HRTNM_S_HISTO_ALV_IT1686.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM HRTNM_S_HISTO_ALV_IT1686
*  INTO TABLE @DATA(IT_HRTNM_S_HISTO_ALV_IT16862).
*--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_HRTNM_S_HISTO_ALV_IT1686 INDEX 1 INTO DATA(WA_HRTNM_S_HISTO_ALV_IT16862).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_HRTNM_S_HISTO_ALV_IT1686 ASSIGNING <HRTNM_S_HISTO_ALV_IT1686>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<HRTNM_S_HISTO_ALV_IT1686>-OBJTL = 1.
<HRTNM_S_HISTO_ALV_IT1686>-OBJIL = 1.
<HRTNM_S_HISTO_ALV_IT1686>-STXTL = 1.
<HRTNM_S_HISTO_ALV_IT1686>-LTXTL = 1.
<HRTNM_S_HISTO_ALV_IT1686>-OBJTD = 1.

ENDLOOP.

LOOP AT IT_HRTNM_S_HISTO_ALV_IT1686 INTO WA_HRTNM_S_HISTO_ALV_IT1686.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_HRTNM_S_HISTO_ALV_IT1686-OBJDI, sy-vline,
  WA_HRTNM_S_HISTO_ALV_IT1686-STXTD, sy-vline,
  WA_HRTNM_S_HISTO_ALV_IT1686-LTXTD, sy-vline,
  WA_HRTNM_S_HISTO_ALV_IT1686-OBJTE, sy-vline,
  WA_HRTNM_S_HISTO_ALV_IT1686-OBJIE, sy-vline,
  WA_HRTNM_S_HISTO_ALV_IT1686-STXTE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_HRTNM_S_HISTO_ALV_IT1686 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_HRTNM_S_HISTO_ALV_IT1686 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_HRTNM_S_HISTO_ALV_IT1686 INTO WA_HRTNM_S_HISTO_ALV_IT1686.


*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.
ENDFORM. 

*&---------------------------------------------------------------------*
*& Form process_as_string_field_values
*&---------------------------------------------------------------------*
FORM process_as_string_field_values CHANGING p_EKKO LIKE wa_EKKO.

TYPES: BEGIN OF T_HRTNM_S_HISTO_ALV_IT1686_STR, 
OBJTL TYPE STRING,
OBJIL TYPE STRING,
STXTL TYPE STRING,
LTXTL TYPE STRING,
OBJTD TYPE STRING,
OBJDI TYPE STRING,
STXTD TYPE STRING,
LTXTD TYPE STRING,
OBJTE TYPE STRING,
OBJIE TYPE STRING,
STXTE TYPE STRING,
LTXTE TYPE STRING,
EVBEG TYPE STRING,
EVEND TYPE STRING,
NDAYE TYPE STRING,
NHRSE TYPE STRING,
ATCAT TYPE STRING,
ATCAT_TXT TYPE STRING,
INTRN TYPE STRING,
INTRN_TXT TYPE STRING,
TSCHT TYPE STRING,
TSCHT_TXT TYPE STRING,
DEFTR TYPE STRING,
ATTTY TYPE STRING,
PERNR TYPE STRING,
NACHN TYPE STRING,
VORNA TYPE STRING,
GESCH TYPE STRING,
GESCH_TXT TYPE STRING,
TROAT TYPE STRING,
TROAT_TXT TYPE STRING,
TRCAT TYPE STRING,
TRCAT_TXT TYPE STRING,
BUKRS TYPE STRING,
WERKS TYPE STRING,
BTRTL TYPE STRING,
ORGEH TYPE STRING,
TEGRC TYPE STRING,
PLVTN TYPE STRING,
OTYTN TYPE STRING,
OBJTN TYPE STRING,
STXTN TYPE STRING,
LTXTN TYPE STRING,
BEGTN TYPE STRING,
ENDTN TYPE STRING,
ISTTN TYPE STRING,
ICON TYPE STRING,
TYPE TYPE STRING,
TNAST TYPE STRING,
TNAST_TXT TYPE STRING,
TLREF TYPE STRING,
TLREF_TXT TYPE STRING,
NDAYS TYPE STRING,
TOTDU TYPE STRING,
TTYPE TYPE STRING,
TTYPE_TXT TYPE STRING,
TPCAT TYPE STRING,
TPCAT_TXT TYPE STRING,
TFCAT TYPE STRING,
TFCAT_TXT TYPE STRING,
RCHRS TYPE STRING,
RCOWT TYPE STRING,
BEGDT TYPE STRING,
NBHRE TYPE STRING,
NBHRS TYPE STRING,
OVHRS TYPE STRING,
ABHRS TYPE STRING,
RESON TYPE STRING,
RESON_TXT TYPE STRING,
NBHRF TYPE STRING,
OVHRF TYPE STRING,
ABHRF TYPE STRING,END OF T_EKKO_STR.
DATA: WA_HRTNM_S_HISTO_ALV_IT1686_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_HRTNM_S_HISTO_ALV_IT1686_STR-OBJTL sy-vline 
WA_HRTNM_S_HISTO_ALV_IT1686_STR-OBJIL sy-vline 
WA_HRTNM_S_HISTO_ALV_IT1686_STR-STXTL sy-vline 
WA_HRTNM_S_HISTO_ALV_IT1686_STR-LTXTL sy-vline 
WA_HRTNM_S_HISTO_ALV_IT1686_STR-OBJTD sy-vline 
WA_HRTNM_S_HISTO_ALV_IT1686_STR-OBJDI sy-vline 
WA_HRTNM_S_HISTO_ALV_IT1686_STR-STXTD sy-vline 
WA_HRTNM_S_HISTO_ALV_IT1686_STR-LTXTD sy-vline 
WA_HRTNM_S_HISTO_ALV_IT1686_STR-OBJTE sy-vline 
WA_HRTNM_S_HISTO_ALV_IT1686_STR-OBJIE sy-vline 
WA_HRTNM_S_HISTO_ALV_IT1686_STR-STXTE sy-vline 
WA_HRTNM_S_HISTO_ALV_IT1686_STR-LTXTE sy-vline 
WA_HRTNM_S_HISTO_ALV_IT1686_STR-EVBEG sy-vline 
WA_HRTNM_S_HISTO_ALV_IT1686_STR-EVEND sy-vline 
WA_HRTNM_S_HISTO_ALV_IT1686_STR-NDAYE sy-vline 
WA_HRTNM_S_HISTO_ALV_IT1686_STR-NHRSE sy-vline 
WA_HRTNM_S_HISTO_ALV_IT1686_STR-ATCAT sy-vline 
WA_HRTNM_S_HISTO_ALV_IT1686_STR-ATCAT_TXT sy-vline 
WA_HRTNM_S_HISTO_ALV_IT1686_STR-INTRN sy-vline 
WA_HRTNM_S_HISTO_ALV_IT1686_STR-INTRN_TXT sy-vline 
WA_HRTNM_S_HISTO_ALV_IT1686_STR-TSCHT sy-vline 
WA_HRTNM_S_HISTO_ALV_IT1686_STR-TSCHT_TXT sy-vline 
WA_HRTNM_S_HISTO_ALV_IT1686_STR-DEFTR sy-vline 
WA_HRTNM_S_HISTO_ALV_IT1686_STR-ATTTY sy-vline 
WA_HRTNM_S_HISTO_ALV_IT1686_STR-PERNR sy-vline 
WA_HRTNM_S_HISTO_ALV_IT1686_STR-NACHN sy-vline 
WA_HRTNM_S_HISTO_ALV_IT1686_STR-VORNA sy-vline 
WA_HRTNM_S_HISTO_ALV_IT1686_STR-GESCH sy-vline 
WA_HRTNM_S_HISTO_ALV_IT1686_STR-GESCH_TXT sy-vline 
WA_HRTNM_S_HISTO_ALV_IT1686_STR-TROAT sy-vline 
WA_HRTNM_S_HISTO_ALV_IT1686_STR-TROAT_TXT sy-vline 
WA_HRTNM_S_HISTO_ALV_IT1686_STR-TRCAT sy-vline 
WA_HRTNM_S_HISTO_ALV_IT1686_STR-TRCAT_TXT sy-vline 
WA_HRTNM_S_HISTO_ALV_IT1686_STR-BUKRS sy-vline 
WA_HRTNM_S_HISTO_ALV_IT1686_STR-WERKS sy-vline 
WA_HRTNM_S_HISTO_ALV_IT1686_STR-BTRTL sy-vline 
WA_HRTNM_S_HISTO_ALV_IT1686_STR-ORGEH sy-vline 
WA_HRTNM_S_HISTO_ALV_IT1686_STR-TEGRC sy-vline 
WA_HRTNM_S_HISTO_ALV_IT1686_STR-PLVTN sy-vline 
WA_HRTNM_S_HISTO_ALV_IT1686_STR-OTYTN sy-vline 
WA_HRTNM_S_HISTO_ALV_IT1686_STR-OBJTN sy-vline 
WA_HRTNM_S_HISTO_ALV_IT1686_STR-STXTN sy-vline 
WA_HRTNM_S_HISTO_ALV_IT1686_STR-LTXTN sy-vline 
WA_HRTNM_S_HISTO_ALV_IT1686_STR-BEGTN sy-vline 
WA_HRTNM_S_HISTO_ALV_IT1686_STR-ENDTN sy-vline 
WA_HRTNM_S_HISTO_ALV_IT1686_STR-ISTTN sy-vline 
WA_HRTNM_S_HISTO_ALV_IT1686_STR-ICON sy-vline 
WA_HRTNM_S_HISTO_ALV_IT1686_STR-TYPE sy-vline 
WA_HRTNM_S_HISTO_ALV_IT1686_STR-TNAST sy-vline 
WA_HRTNM_S_HISTO_ALV_IT1686_STR-TNAST_TXT sy-vline 
WA_HRTNM_S_HISTO_ALV_IT1686_STR-TLREF sy-vline 
WA_HRTNM_S_HISTO_ALV_IT1686_STR-TLREF_TXT sy-vline 
WA_HRTNM_S_HISTO_ALV_IT1686_STR-NDAYS sy-vline 
WA_HRTNM_S_HISTO_ALV_IT1686_STR-TOTDU sy-vline 
WA_HRTNM_S_HISTO_ALV_IT1686_STR-TTYPE sy-vline 
WA_HRTNM_S_HISTO_ALV_IT1686_STR-TTYPE_TXT sy-vline 
WA_HRTNM_S_HISTO_ALV_IT1686_STR-TPCAT sy-vline 
WA_HRTNM_S_HISTO_ALV_IT1686_STR-TPCAT_TXT sy-vline 
WA_HRTNM_S_HISTO_ALV_IT1686_STR-TFCAT sy-vline 
WA_HRTNM_S_HISTO_ALV_IT1686_STR-TFCAT_TXT sy-vline 
WA_HRTNM_S_HISTO_ALV_IT1686_STR-RCHRS sy-vline 
WA_HRTNM_S_HISTO_ALV_IT1686_STR-RCOWT sy-vline 
WA_HRTNM_S_HISTO_ALV_IT1686_STR-BEGDT sy-vline 
WA_HRTNM_S_HISTO_ALV_IT1686_STR-NBHRE sy-vline 
WA_HRTNM_S_HISTO_ALV_IT1686_STR-NBHRS sy-vline 
WA_HRTNM_S_HISTO_ALV_IT1686_STR-OVHRS sy-vline 
WA_HRTNM_S_HISTO_ALV_IT1686_STR-ABHRS sy-vline 
WA_HRTNM_S_HISTO_ALV_IT1686_STR-RESON sy-vline 
WA_HRTNM_S_HISTO_ALV_IT1686_STR-RESON_TXT sy-vline 
WA_HRTNM_S_HISTO_ALV_IT1686_STR-NBHRF sy-vline 
WA_HRTNM_S_HISTO_ALV_IT1686_STR-OVHRF sy-vline 
WA_HRTNM_S_HISTO_ALV_IT1686_STR-ABHRF sy-vline      INTO ld_text SEPARATED BY SPACE.

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