ABAP Select data from SAP table HRTNM_T_SNAP_PASS into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP HRTNM_T_SNAP_PASS 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_T_SNAP_PASS. 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_T_SNAP_PASS 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_T_SNAP_PASS TYPE STANDARD TABLE OF HRTNM_T_SNAP_PASS,
      WA_HRTNM_T_SNAP_PASS TYPE HRTNM_T_SNAP_PASS,
      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_T_SNAP_PASS> TYPE HRTNM_T_SNAP_PASS.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM HRTNM_T_SNAP_PASS
*  INTO TABLE @DATA(IT_HRTNM_T_SNAP_PASS2).
*--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_T_SNAP_PASS INDEX 1 INTO DATA(WA_HRTNM_T_SNAP_PASS2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<HRTNM_T_SNAP_PASS>-SECTN = 1.
<HRTNM_T_SNAP_PASS>-NBPER = 1.
<HRTNM_T_SNAP_PASS>-NBWOM = 1.
<HRTNM_T_SNAP_PASS>-WERKS = 1.
<HRTNM_T_SNAP_PASS>-BTRTL = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_HRTNM_T_SNAP_PASS-FTEGC, sy-vline,
  WA_HRTNM_T_SNAP_PASS-OBTYP, sy-vline,
  WA_HRTNM_T_SNAP_PASS-OBJID, sy-vline,
  WA_HRTNM_T_SNAP_PASS-SIGN, sy-vline,
  WA_HRTNM_T_SNAP_PASS-OPTI, sy-vline,
  WA_HRTNM_T_SNAP_PASS-AGE_MIN, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_HRTNM_T_SNAP_PASS 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_T_SNAP_PASS 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_T_SNAP_PASS INTO WA_HRTNM_T_SNAP_PASS.


*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_T_SNAP_PASS_STR, 
SECTN TYPE STRING,
NBPER TYPE STRING,
NBWOM TYPE STRING,
WERKS TYPE STRING,
BTRTL TYPE STRING,
FTEGC TYPE STRING,
OBTYP TYPE STRING,
OBJID TYPE STRING,
SIGN TYPE STRING,
OPTI TYPE STRING,
AGE_MIN TYPE STRING,
AGE_MAX TYPE STRING,
FRMIN TYPE STRING,
BUKRS TYPE STRING,
VDSK1 TYPE STRING,
GSBER TYPE STRING,END OF T_EKKO_STR.
DATA: WA_HRTNM_T_SNAP_PASS_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_T_SNAP_PASS_STR-SECTN sy-vline 
WA_HRTNM_T_SNAP_PASS_STR-NBPER sy-vline 
WA_HRTNM_T_SNAP_PASS_STR-NBWOM sy-vline 
WA_HRTNM_T_SNAP_PASS_STR-WERKS sy-vline 
WA_HRTNM_T_SNAP_PASS_STR-BTRTL sy-vline 
WA_HRTNM_T_SNAP_PASS_STR-FTEGC sy-vline 
WA_HRTNM_T_SNAP_PASS_STR-OBTYP sy-vline 
WA_HRTNM_T_SNAP_PASS_STR-OBJID sy-vline 
WA_HRTNM_T_SNAP_PASS_STR-SIGN sy-vline 
WA_HRTNM_T_SNAP_PASS_STR-OPTI sy-vline 
WA_HRTNM_T_SNAP_PASS_STR-AGE_MIN sy-vline 
WA_HRTNM_T_SNAP_PASS_STR-AGE_MAX sy-vline 
WA_HRTNM_T_SNAP_PASS_STR-FRMIN sy-vline 
WA_HRTNM_T_SNAP_PASS_STR-BUKRS sy-vline 
WA_HRTNM_T_SNAP_PASS_STR-VDSK1 sy-vline 
WA_HRTNM_T_SNAP_PASS_STR-GSBER sy-vline      INTO ld_text SEPARATED BY SPACE.

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