ABAP Select data from SAP table HRMS_BIW_PY_REC_DT into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM HRMS_BIW_PY_REC_DT
*  INTO TABLE @DATA(IT_HRMS_BIW_PY_REC_DT2).
*--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_HRMS_BIW_PY_REC_DT INDEX 1 INTO DATA(WA_HRMS_BIW_PY_REC_DT2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<HRMS_BIW_PY_REC_DT>-SEQNR = 1.
<HRMS_BIW_PY_REC_DT>-PERNR = 1.
<HRMS_BIW_PY_REC_DT>-WRKST = 1.
<HRMS_BIW_PY_REC_DT>-TAXID1 = 1.
<HRMS_BIW_PY_REC_DT>-TAXID2 = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_HRMS_BIW_PY_REC_DT-FPPER, sy-vline,
  WA_HRMS_BIW_PY_REC_DT-INPER, sy-vline,
  WA_HRMS_BIW_PY_REC_DT-LGART, sy-vline,
  WA_HRMS_BIW_PY_REC_DT-APZNR, sy-vline,
  WA_HRMS_BIW_PY_REC_DT-CNTR1, sy-vline,
  WA_HRMS_BIW_PY_REC_DT-CNTR2, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_HRMS_BIW_PY_REC_DT 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_HRMS_BIW_PY_REC_DT 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_HRMS_BIW_PY_REC_DT INTO WA_HRMS_BIW_PY_REC_DT.


*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 KOSTL
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_HRMS_BIW_PY_REC_DT-KOSTL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_HRMS_BIW_PY_REC_DT-KOSTL.
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_HRMS_BIW_PY_REC_DT_STR, 
SEQNR TYPE STRING,
PERNR TYPE STRING,
WRKST TYPE STRING,
TAXID1 TYPE STRING,
TAXID2 TYPE STRING,
FPPER TYPE STRING,
INPER TYPE STRING,
LGART TYPE STRING,
APZNR TYPE STRING,
CNTR1 TYPE STRING,
CNTR2 TYPE STRING,
CNTR3 TYPE STRING,
EMPER TYPE STRING,
BETRG TYPE STRING,
ANZHL TYPE STRING,
SYMBL TYPE STRING,
WAERS TYPE STRING,
SRTZA TYPE STRING,
WP_ENDDA TYPE STRING,
WP_BEGDA TYPE STRING,
KOSTL TYPE STRING,END OF T_EKKO_STR.
DATA: WA_HRMS_BIW_PY_REC_DT_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_HRMS_BIW_PY_REC_DT_STR-SEQNR sy-vline 
WA_HRMS_BIW_PY_REC_DT_STR-PERNR sy-vline 
WA_HRMS_BIW_PY_REC_DT_STR-WRKST sy-vline 
WA_HRMS_BIW_PY_REC_DT_STR-TAXID1 sy-vline 
WA_HRMS_BIW_PY_REC_DT_STR-TAXID2 sy-vline 
WA_HRMS_BIW_PY_REC_DT_STR-FPPER sy-vline 
WA_HRMS_BIW_PY_REC_DT_STR-INPER sy-vline 
WA_HRMS_BIW_PY_REC_DT_STR-LGART sy-vline 
WA_HRMS_BIW_PY_REC_DT_STR-APZNR sy-vline 
WA_HRMS_BIW_PY_REC_DT_STR-CNTR1 sy-vline 
WA_HRMS_BIW_PY_REC_DT_STR-CNTR2 sy-vline 
WA_HRMS_BIW_PY_REC_DT_STR-CNTR3 sy-vline 
WA_HRMS_BIW_PY_REC_DT_STR-EMPER sy-vline 
WA_HRMS_BIW_PY_REC_DT_STR-BETRG sy-vline 
WA_HRMS_BIW_PY_REC_DT_STR-ANZHL sy-vline 
WA_HRMS_BIW_PY_REC_DT_STR-SYMBL sy-vline 
WA_HRMS_BIW_PY_REC_DT_STR-WAERS sy-vline 
WA_HRMS_BIW_PY_REC_DT_STR-SRTZA sy-vline 
WA_HRMS_BIW_PY_REC_DT_STR-WP_ENDDA sy-vline 
WA_HRMS_BIW_PY_REC_DT_STR-WP_BEGDA sy-vline 
WA_HRMS_BIW_PY_REC_DT_STR-KOSTL sy-vline      INTO ld_text SEPARATED BY SPACE.

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