ABAP Select data from SAP table HRBW_REC_HD into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM HRBW_REC_HD
*  INTO TABLE @DATA(IT_HRBW_REC_HD2).
*--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_HRBW_REC_HD INDEX 1 INTO DATA(WA_HRBW_REC_HD2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<HRBW_REC_HD>-MANDT = 1.
<HRBW_REC_HD>-MOLGA = 1.
<HRBW_REC_HD>-EMPID = 1.
<HRBW_REC_HD>-TAXCAT = 1.
<HRBW_REC_HD>-TFNAM = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_HRBW_REC_HD-ENDDA, sy-vline,
  WA_HRBW_REC_HD-GENDA, sy-vline,
  WA_HRBW_REC_HD-GENTM, sy-vline,
  WA_HRBW_REC_HD-BUKRS, sy-vline,
  WA_HRBW_REC_HD-TAXCAT2, sy-vline,
  WA_HRBW_REC_HD-RUNID, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_HRBW_REC_HD 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_HRBW_REC_HD 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_HRBW_REC_HD INTO WA_HRBW_REC_HD.


*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 GJAHR, internal->external for field FINYR
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_HRBW_REC_HD-FINYR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_HRBW_REC_HD-FINYR.
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_HRBW_REC_HD_STR, 
MANDT TYPE STRING,
MOLGA TYPE STRING,
EMPID TYPE STRING,
TAXCAT TYPE STRING,
TFNAM TYPE STRING,
ENDDA TYPE STRING,
GENDA TYPE STRING,
GENTM TYPE STRING,
BUKRS TYPE STRING,
TAXCAT2 TYPE STRING,
RUNID TYPE STRING,
APPLN TYPE STRING,
ASODT TYPE STRING,
BEGDA TYPE STRING,
FINYR TYPE STRING,
SEQNR TYPE STRING,END OF T_EKKO_STR.
DATA: WA_HRBW_REC_HD_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_HRBW_REC_HD_STR-MANDT sy-vline 
WA_HRBW_REC_HD_STR-MOLGA sy-vline 
WA_HRBW_REC_HD_STR-EMPID sy-vline 
WA_HRBW_REC_HD_STR-TAXCAT sy-vline 
WA_HRBW_REC_HD_STR-TFNAM sy-vline 
WA_HRBW_REC_HD_STR-ENDDA sy-vline 
WA_HRBW_REC_HD_STR-GENDA sy-vline 
WA_HRBW_REC_HD_STR-GENTM sy-vline 
WA_HRBW_REC_HD_STR-BUKRS sy-vline 
WA_HRBW_REC_HD_STR-TAXCAT2 sy-vline 
WA_HRBW_REC_HD_STR-RUNID sy-vline 
WA_HRBW_REC_HD_STR-APPLN sy-vline 
WA_HRBW_REC_HD_STR-ASODT sy-vline 
WA_HRBW_REC_HD_STR-BEGDA sy-vline 
WA_HRBW_REC_HD_STR-FINYR sy-vline 
WA_HRBW_REC_HD_STR-SEQNR sy-vline      INTO ld_text SEPARATED BY SPACE.

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