ABAP Select data from SAP table HBRCGB into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM HBRCGB
*  INTO TABLE @DATA(IT_HBRCGB2).
*--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_HBRCGB INDEX 1 INTO DATA(WA_HBRCGB2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<HBRCGB>-CODEB = 1.
<HBRCGB>-IDENT = 1.
<HBRCGB>-CGCEI = 1.
<HBRCGB>-SEQU = 1.
<HBRCGB>-DECLR = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_HBRCGB-CODAL, sy-vline,
  WA_HBRCGB-CZIP, sy-vline,
  WA_HBRCGB-ECONO, sy-vline,
  WA_HBRCGB-BRNAM, sy-vline,
  WA_HBRCGB-CADDR, sy-vline,
  WA_HBRCGB-CDIST, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_HBRCGB 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_HBRCGB 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_HBRCGB INTO WA_HBRCGB.


*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_HBRCGB_STR, 
CODEB TYPE STRING,
IDENT TYPE STRING,
CGCEI TYPE STRING,
SEQU TYPE STRING,
DECLR TYPE STRING,
CODAL TYPE STRING,
CZIP TYPE STRING,
ECONO TYPE STRING,
BRNAM TYPE STRING,
CADDR TYPE STRING,
CDIST TYPE STRING,
CSTAT TYPE STRING,
TOTFS TYPE STRING,
FILL7 TYPE STRING,END OF T_EKKO_STR.
DATA: WA_HBRCGB_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_HBRCGB_STR-CODEB sy-vline 
WA_HBRCGB_STR-IDENT sy-vline 
WA_HBRCGB_STR-CGCEI sy-vline 
WA_HBRCGB_STR-SEQU sy-vline 
WA_HBRCGB_STR-DECLR sy-vline 
WA_HBRCGB_STR-CODAL sy-vline 
WA_HBRCGB_STR-CZIP sy-vline 
WA_HBRCGB_STR-ECONO sy-vline 
WA_HBRCGB_STR-BRNAM sy-vline 
WA_HBRCGB_STR-CADDR sy-vline 
WA_HBRCGB_STR-CDIST sy-vline 
WA_HBRCGB_STR-CSTAT sy-vline 
WA_HBRCGB_STR-TOTFS sy-vline 
WA_HBRCGB_STR-FILL7 sy-vline      INTO ld_text SEPARATED BY SPACE.

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