ABAP Select data from SAP table BBPIV_FRSEG into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM BBPIV_FRSEG
*  INTO TABLE @DATA(IT_BBPIV_FRSEG2).
*--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_BBPIV_FRSEG INDEX 1 INTO DATA(WA_BBPIV_FRSEG2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<BBPIV_FRSEG>-EBELN = 1.
<BBPIV_FRSEG>-EBELP = 1.
<BBPIV_FRSEG>-ZEKKN = 1.
<BBPIV_FRSEG>-LFBNR = 1.
<BBPIV_FRSEG>-LFGJA = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_BBPIV_FRSEG-LFPOS, sy-vline,
  WA_BBPIV_FRSEG-WEBRE, sy-vline,
  WA_BBPIV_FRSEG-MENGE, sy-vline,
  WA_BBPIV_FRSEG-BPMNG, sy-vline,
  WA_BBPIV_FRSEG-WRBTR, sy-vline,
  WA_BBPIV_FRSEG-BNKAN_FW, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_BBPIV_FRSEG 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_BBPIV_FRSEG 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_BBPIV_FRSEG INTO WA_BBPIV_FRSEG.


*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 EBELN
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_BBPIV_FRSEG-EBELN
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_BBPIV_FRSEG-EBELN.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field LFBNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_BBPIV_FRSEG-LFBNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_BBPIV_FRSEG-LFBNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit GJAHR, internal->external for field LFGJA
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_BBPIV_FRSEG-LFGJA
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_BBPIV_FRSEG-LFGJA.
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_BBPIV_FRSEG_STR, 
EBELN TYPE STRING,
EBELP TYPE STRING,
ZEKKN TYPE STRING,
LFBNR TYPE STRING,
LFGJA TYPE STRING,
LFPOS TYPE STRING,
WEBRE TYPE STRING,
MENGE TYPE STRING,
BPMNG TYPE STRING,
WRBTR TYPE STRING,
BNKAN_FW TYPE STRING,
MWSKZ TYPE STRING,
TXJCD TYPE STRING,
SGTXT TYPE STRING,
STBUZ TYPE STRING,
TBTKZ TYPE STRING,
XEKBE TYPE STRING,
XEKBZ TYPE STRING,
GRICD TYPE STRING,
GRIRG TYPE STRING,
GITYP TYPE STRING,END OF T_EKKO_STR.
DATA: WA_BBPIV_FRSEG_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_BBPIV_FRSEG_STR-EBELN sy-vline 
WA_BBPIV_FRSEG_STR-EBELP sy-vline 
WA_BBPIV_FRSEG_STR-ZEKKN sy-vline 
WA_BBPIV_FRSEG_STR-LFBNR sy-vline 
WA_BBPIV_FRSEG_STR-LFGJA sy-vline 
WA_BBPIV_FRSEG_STR-LFPOS sy-vline 
WA_BBPIV_FRSEG_STR-WEBRE sy-vline 
WA_BBPIV_FRSEG_STR-MENGE sy-vline 
WA_BBPIV_FRSEG_STR-BPMNG sy-vline 
WA_BBPIV_FRSEG_STR-WRBTR sy-vline 
WA_BBPIV_FRSEG_STR-BNKAN_FW sy-vline 
WA_BBPIV_FRSEG_STR-MWSKZ sy-vline 
WA_BBPIV_FRSEG_STR-TXJCD sy-vline 
WA_BBPIV_FRSEG_STR-SGTXT sy-vline 
WA_BBPIV_FRSEG_STR-STBUZ sy-vline 
WA_BBPIV_FRSEG_STR-TBTKZ sy-vline 
WA_BBPIV_FRSEG_STR-XEKBE sy-vline 
WA_BBPIV_FRSEG_STR-XEKBZ sy-vline 
WA_BBPIV_FRSEG_STR-GRICD sy-vline 
WA_BBPIV_FRSEG_STR-GRIRG sy-vline 
WA_BBPIV_FRSEG_STR-GITYP sy-vline      INTO ld_text SEPARATED BY SPACE.

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