ABAP Select data from SAP table HRTNM_S_BATCH_LOG_ALV 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_BATCH_LOG_ALV 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_BATCH_LOG_ALV. 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_BATCH_LOG_ALV 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_BATCH_LOG_ALV TYPE STANDARD TABLE OF HRTNM_S_BATCH_LOG_ALV,
      WA_HRTNM_S_BATCH_LOG_ALV TYPE HRTNM_S_BATCH_LOG_ALV,
      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_BATCH_LOG_ALV> TYPE HRTNM_S_BATCH_LOG_ALV.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM HRTNM_S_BATCH_LOG_ALV
*  INTO TABLE @DATA(IT_HRTNM_S_BATCH_LOG_ALV2).
*--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_BATCH_LOG_ALV INDEX 1 INTO DATA(WA_HRTNM_S_BATCH_LOG_ALV2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<HRTNM_S_BATCH_LOG_ALV>-OBJIE = 1.
<HRTNM_S_BATCH_LOG_ALV>-SHORT = 1.
<HRTNM_S_BATCH_LOG_ALV>-STEXT = 1.
<HRTNM_S_BATCH_LOG_ALV>-COBEG = 1.
<HRTNM_S_BATCH_LOG_ALV>-COEND = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_HRTNM_S_BATCH_LOG_ALV-TSCHT, sy-vline,
  WA_HRTNM_S_BATCH_LOG_ALV-PERNR, sy-vline,
  WA_HRTNM_S_BATCH_LOG_ALV-NACHN, sy-vline,
  WA_HRTNM_S_BATCH_LOG_ALV-VORNA, sy-vline,
  WA_HRTNM_S_BATCH_LOG_ALV-WERKS, sy-vline,
  WA_HRTNM_S_BATCH_LOG_ALV-BTRTL, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_HRTNM_S_BATCH_LOG_ALV 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_BATCH_LOG_ALV 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_BATCH_LOG_ALV INTO WA_HRTNM_S_BATCH_LOG_ALV.


*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_BATCH_LOG_ALV_STR, 
OBJIE TYPE STRING,
SHORT TYPE STRING,
STEXT TYPE STRING,
COBEG TYPE STRING,
COEND TYPE STRING,
TSCHT TYPE STRING,
PERNR TYPE STRING,
NACHN TYPE STRING,
VORNA TYPE STRING,
WERKS TYPE STRING,
BTRTL TYPE STRING,
ABKRS TYPE STRING,
PERSG TYPE STRING,
PERSK TYPE STRING,
ICON TYPE STRING,
DEINF TYPE STRING,
DESUB TYPE STRING,
DETYP TYPE STRING,
DEDBE TYPE STRING,
DEDEN TYPE STRING,
NUMBR TYPE STRING,
TYPE TYPE STRING,
MESSAGE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_HRTNM_S_BATCH_LOG_ALV_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_BATCH_LOG_ALV_STR-OBJIE sy-vline 
WA_HRTNM_S_BATCH_LOG_ALV_STR-SHORT sy-vline 
WA_HRTNM_S_BATCH_LOG_ALV_STR-STEXT sy-vline 
WA_HRTNM_S_BATCH_LOG_ALV_STR-COBEG sy-vline 
WA_HRTNM_S_BATCH_LOG_ALV_STR-COEND sy-vline 
WA_HRTNM_S_BATCH_LOG_ALV_STR-TSCHT sy-vline 
WA_HRTNM_S_BATCH_LOG_ALV_STR-PERNR sy-vline 
WA_HRTNM_S_BATCH_LOG_ALV_STR-NACHN sy-vline 
WA_HRTNM_S_BATCH_LOG_ALV_STR-VORNA sy-vline 
WA_HRTNM_S_BATCH_LOG_ALV_STR-WERKS sy-vline 
WA_HRTNM_S_BATCH_LOG_ALV_STR-BTRTL sy-vline 
WA_HRTNM_S_BATCH_LOG_ALV_STR-ABKRS sy-vline 
WA_HRTNM_S_BATCH_LOG_ALV_STR-PERSG sy-vline 
WA_HRTNM_S_BATCH_LOG_ALV_STR-PERSK sy-vline 
WA_HRTNM_S_BATCH_LOG_ALV_STR-ICON sy-vline 
WA_HRTNM_S_BATCH_LOG_ALV_STR-DEINF sy-vline 
WA_HRTNM_S_BATCH_LOG_ALV_STR-DESUB sy-vline 
WA_HRTNM_S_BATCH_LOG_ALV_STR-DETYP sy-vline 
WA_HRTNM_S_BATCH_LOG_ALV_STR-DEDBE sy-vline 
WA_HRTNM_S_BATCH_LOG_ALV_STR-DEDEN sy-vline 
WA_HRTNM_S_BATCH_LOG_ALV_STR-NUMBR sy-vline 
WA_HRTNM_S_BATCH_LOG_ALV_STR-TYPE sy-vline 
WA_HRTNM_S_BATCH_LOG_ALV_STR-MESSAGE sy-vline      INTO ld_text SEPARATED BY SPACE.

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