ABAP Select data from SAP table BRBARCODG into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM BRBARCODG
*  INTO TABLE @DATA(IT_BRBARCODG2).
*--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_BRBARCODG INDEX 1 INTO DATA(WA_BRBARCODG2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<BRBARCODG>-RECTYP = 1.
<BRBARCODG>-AGACOUT = 1.
<BRBARCODG>-PAYDATE = 1.
<BRBARCODG>-CREDDATE = 1.
<BRBARCODG>-PROID = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_BRBARCODG-SEGID, sy-vline,
  WA_BRBARCODG-REFER, sy-vline,
  WA_BRBARCODG-GDIGI, sy-vline,
  WA_BRBARCODG-AMOUNT, sy-vline,
  WA_BRBARCODG-COMID, sy-vline,
  WA_BRBARCODG-FREFIEL, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_BRBARCODG 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_BRBARCODG 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_BRBARCODG INTO WA_BRBARCODG.


*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_BRBARCODG_STR, 
RECTYP TYPE STRING,
AGACOUT TYPE STRING,
PAYDATE TYPE STRING,
CREDDATE TYPE STRING,
PROID TYPE STRING,
SEGID TYPE STRING,
REFER TYPE STRING,
GDIGI TYPE STRING,
AMOUNT TYPE STRING,
COMID TYPE STRING,
FREFIEL TYPE STRING,
AMOUNTR TYPE STRING,
RATE TYPE STRING,
RSN TYPE STRING,
AGCODE TYPE STRING,
LEVYWA TYPE STRING,
FILLER TYPE STRING,END OF T_EKKO_STR.
DATA: WA_BRBARCODG_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_BRBARCODG_STR-RECTYP sy-vline 
WA_BRBARCODG_STR-AGACOUT sy-vline 
WA_BRBARCODG_STR-PAYDATE sy-vline 
WA_BRBARCODG_STR-CREDDATE sy-vline 
WA_BRBARCODG_STR-PROID sy-vline 
WA_BRBARCODG_STR-SEGID sy-vline 
WA_BRBARCODG_STR-REFER sy-vline 
WA_BRBARCODG_STR-GDIGI sy-vline 
WA_BRBARCODG_STR-AMOUNT sy-vline 
WA_BRBARCODG_STR-COMID sy-vline 
WA_BRBARCODG_STR-FREFIEL sy-vline 
WA_BRBARCODG_STR-AMOUNTR sy-vline 
WA_BRBARCODG_STR-RATE sy-vline 
WA_BRBARCODG_STR-RSN sy-vline 
WA_BRBARCODG_STR-AGCODE sy-vline 
WA_BRBARCODG_STR-LEVYWA sy-vline 
WA_BRBARCODG_STR-FILLER sy-vline      INTO ld_text SEPARATED BY SPACE.

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