ABAP Select data from SAP table BBPIV_FRSEG_45A 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_45A 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_45A. 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_45A 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_45A TYPE STANDARD TABLE OF BBPIV_FRSEG_45A,
      WA_BBPIV_FRSEG_45A TYPE BBPIV_FRSEG_45A,
      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_45A> TYPE BBPIV_FRSEG_45A.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_BBPIV_FRSEG_45A.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM BBPIV_FRSEG_45A
  INTO TABLE IT_BBPIV_FRSEG_45A.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM BBPIV_FRSEG_45A
*  INTO TABLE @DATA(IT_BBPIV_FRSEG_45A2).
*--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_45A INDEX 1 INTO DATA(WA_BBPIV_FRSEG_45A2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_BBPIV_FRSEG_45A ASSIGNING <BBPIV_FRSEG_45A>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<BBPIV_FRSEG_45A>-EBELN = 1.
<BBPIV_FRSEG_45A>-EBELP = 1.
<BBPIV_FRSEG_45A>-ZEKKN = 1.
<BBPIV_FRSEG_45A>-LFBNR = 1.
<BBPIV_FRSEG_45A>-LFGJA = 1.

ENDLOOP.

LOOP AT IT_BBPIV_FRSEG_45A INTO WA_BBPIV_FRSEG_45A.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_BBPIV_FRSEG_45A-LFPOS, sy-vline,
  WA_BBPIV_FRSEG_45A-WEBRE, sy-vline,
  WA_BBPIV_FRSEG_45A-STBUZ, sy-vline,
  WA_BBPIV_FRSEG_45A-TBTKZ, sy-vline,
  WA_BBPIV_FRSEG_45A-XEKBE, sy-vline,
  WA_BBPIV_FRSEG_45A-XEKBZ, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_BBPIV_FRSEG_45A 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_45A 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_45A INTO WA_BBPIV_FRSEG_45A.


*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_45A-EBELN
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_BBPIV_FRSEG_45A-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_45A-LFBNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_BBPIV_FRSEG_45A-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_45A-LFGJA
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_BBPIV_FRSEG_45A-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_45A_STR, 
EBELN TYPE STRING,
EBELP TYPE STRING,
ZEKKN TYPE STRING,
LFBNR TYPE STRING,
LFGJA TYPE STRING,
LFPOS TYPE STRING,
WEBRE TYPE STRING,
STBUZ TYPE STRING,
TBTKZ TYPE STRING,
XEKBE TYPE STRING,
XEKBZ TYPE STRING,
KZMEK TYPE STRING,
LFKOR TYPE STRING,
RBWWR TYPE STRING,
RBMNG TYPE STRING,
BPRBM TYPE STRING,
GRICD TYPE STRING,
GRIRG TYPE STRING,
GITYP TYPE STRING,END OF T_EKKO_STR.
DATA: WA_BBPIV_FRSEG_45A_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_45A_STR-EBELN sy-vline 
WA_BBPIV_FRSEG_45A_STR-EBELP sy-vline 
WA_BBPIV_FRSEG_45A_STR-ZEKKN sy-vline 
WA_BBPIV_FRSEG_45A_STR-LFBNR sy-vline 
WA_BBPIV_FRSEG_45A_STR-LFGJA sy-vline 
WA_BBPIV_FRSEG_45A_STR-LFPOS sy-vline 
WA_BBPIV_FRSEG_45A_STR-WEBRE sy-vline 
WA_BBPIV_FRSEG_45A_STR-STBUZ sy-vline 
WA_BBPIV_FRSEG_45A_STR-TBTKZ sy-vline 
WA_BBPIV_FRSEG_45A_STR-XEKBE sy-vline 
WA_BBPIV_FRSEG_45A_STR-XEKBZ sy-vline 
WA_BBPIV_FRSEG_45A_STR-KZMEK sy-vline 
WA_BBPIV_FRSEG_45A_STR-LFKOR sy-vline 
WA_BBPIV_FRSEG_45A_STR-RBWWR sy-vline 
WA_BBPIV_FRSEG_45A_STR-RBMNG sy-vline 
WA_BBPIV_FRSEG_45A_STR-BPRBM sy-vline 
WA_BBPIV_FRSEG_45A_STR-GRICD sy-vline 
WA_BBPIV_FRSEG_45A_STR-GRIRG sy-vline 
WA_BBPIV_FRSEG_45A_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.