ABAP Select data from SAP table HBRCGC into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM HBRCGC
*  INTO TABLE @DATA(IT_HBRCGC2).
*--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_HBRCGC INDEX 1 INTO DATA(WA_HBRCGC2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<HBRCGC>-CODEC = 1.
<HBRCGC>-IDENT = 1.
<HBRCGC>-CGCEI = 1.
<HBRCGC>-SEQU = 1.
<HBRCGC>-PIS = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_HBRCGC-SEXEE, sy-vline,
  WA_HBRCGC-BIRTH, sy-vline,
  WA_HBRCGC-SCHOL, sy-vline,
  WA_HBRCGC-CBO, sy-vline,
  WA_HBRCGC-SALAR, sy-vline,
  WA_HBRCGC-WHOUR, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_HBRCGC 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_HBRCGC 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_HBRCGC INTO WA_HBRCGC.


*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_HBRCGC_STR, 
CODEC TYPE STRING,
IDENT TYPE STRING,
CGCEI TYPE STRING,
SEQU TYPE STRING,
PIS TYPE STRING,
SEXEE TYPE STRING,
BIRTH TYPE STRING,
SCHOL TYPE STRING,
CBO TYPE STRING,
SALAR TYPE STRING,
WHOUR TYPE STRING,
DHIRE TYPE STRING,
TMOVE TYPE STRING,
DFIRE TYPE STRING,
ENOME TYPE STRING,
CTNUM TYPE STRING,
CTSER TYPE STRING,
CTSTT TYPE STRING,
FIL29 TYPE STRING,END OF T_EKKO_STR.
DATA: WA_HBRCGC_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_HBRCGC_STR-CODEC sy-vline 
WA_HBRCGC_STR-IDENT sy-vline 
WA_HBRCGC_STR-CGCEI sy-vline 
WA_HBRCGC_STR-SEQU sy-vline 
WA_HBRCGC_STR-PIS sy-vline 
WA_HBRCGC_STR-SEXEE sy-vline 
WA_HBRCGC_STR-BIRTH sy-vline 
WA_HBRCGC_STR-SCHOL sy-vline 
WA_HBRCGC_STR-CBO sy-vline 
WA_HBRCGC_STR-SALAR sy-vline 
WA_HBRCGC_STR-WHOUR sy-vline 
WA_HBRCGC_STR-DHIRE sy-vline 
WA_HBRCGC_STR-TMOVE sy-vline 
WA_HBRCGC_STR-DFIRE sy-vline 
WA_HBRCGC_STR-ENOME sy-vline 
WA_HBRCGC_STR-CTNUM sy-vline 
WA_HBRCGC_STR-CTSER sy-vline 
WA_HBRCGC_STR-CTSTT sy-vline 
WA_HBRCGC_STR-FIL29 sy-vline      INTO ld_text SEPARATED BY SPACE.

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