ABAP Select data from SAP table BUS050DFLD into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP BUS050DFLD 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 BUS050DFLD. 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 BUS050DFLD 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_BUS050DFLD TYPE STANDARD TABLE OF BUS050DFLD,
      WA_BUS050DFLD TYPE BUS050DFLD,
      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: <BUS050DFLD> TYPE BUS050DFLD.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_BUS050DFLD.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM BUS050DFLD
  INTO TABLE IT_BUS050DFLD.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM BUS050DFLD
*  INTO TABLE @DATA(IT_BUS050DFLD2).
*--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_BUS050DFLD INDEX 1 INTO DATA(WA_BUS050DFLD2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_BUS050DFLD ASSIGNING <BUS050DFLD>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<BUS050DFLD>-RELTYP = 1.
<BUS050DFLD>-RLDTYP = 1.
<BUS050DFLD>-TYPTX = 1.
<BUS050DFLD>-TYPTX_M = 1.
<BUS050DFLD>-RELTYPTX = 1.

ENDLOOP.

LOOP AT IT_BUS050DFLD INTO WA_BUS050DFLD.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_BUS050DFLD-RELTYP_LB, sy-vline,
  WA_BUS050DFLD-PARTNER, sy-vline,
  WA_BUS050DFLD-PARTNER1, sy-vline,
  WA_BUS050DFLD-PARTNER1TX, sy-vline,
  WA_BUS050DFLD-PARTREF1TX, sy-vline,
  WA_BUS050DFLD-PARTNER2, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_BUS050DFLD 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_BUS050DFLD 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_BUS050DFLD INTO WA_BUS050DFLD.


*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 PARTNER
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_BUS050DFLD-PARTNER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_BUS050DFLD-PARTNER.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field PARTNER1
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_BUS050DFLD-PARTNER1
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_BUS050DFLD-PARTNER1.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field PARTNER2
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_BUS050DFLD-PARTNER2
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_BUS050DFLD-PARTNER2.
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_BUS050DFLD_STR, 
RELTYP TYPE STRING,
RLDTYP TYPE STRING,
TYPTX TYPE STRING,
TYPTX_M TYPE STRING,
RELTYPTX TYPE STRING,
RELTYP_LB TYPE STRING,
PARTNER TYPE STRING,
PARTNER1 TYPE STRING,
PARTNER1TX TYPE STRING,
PARTREF1TX TYPE STRING,
PARTNER2 TYPE STRING,
PARTNER2TX TYPE STRING,
PARTREF2TX TYPE STRING,
RLTYP TYPE STRING,
RLTYPTX TYPE STRING,
RLTYPREFTX TYPE STRING,
DATE_FROM_STR TYPE STRING,
DATE_TO_STR TYPE STRING,
DATE_FROM TYPE STRING,
DATE_TO TYPE STRING,
DATE_FIX TYPE STRING,
XALL_REL TYPE STRING,
XALL_RLD TYPE STRING,
SORTF TYPE STRING,
XSELDFT TYPE STRING,
RELKIND TYPE STRING,
RLDKIND TYPE STRING,
KINDTX TYPE STRING,
XFDREL TYPE STRING,END OF T_EKKO_STR.
DATA: WA_BUS050DFLD_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_BUS050DFLD_STR-RELTYP sy-vline 
WA_BUS050DFLD_STR-RLDTYP sy-vline 
WA_BUS050DFLD_STR-TYPTX sy-vline 
WA_BUS050DFLD_STR-TYPTX_M sy-vline 
WA_BUS050DFLD_STR-RELTYPTX sy-vline 
WA_BUS050DFLD_STR-RELTYP_LB sy-vline 
WA_BUS050DFLD_STR-PARTNER sy-vline 
WA_BUS050DFLD_STR-PARTNER1 sy-vline 
WA_BUS050DFLD_STR-PARTNER1TX sy-vline 
WA_BUS050DFLD_STR-PARTREF1TX sy-vline 
WA_BUS050DFLD_STR-PARTNER2 sy-vline 
WA_BUS050DFLD_STR-PARTNER2TX sy-vline 
WA_BUS050DFLD_STR-PARTREF2TX sy-vline 
WA_BUS050DFLD_STR-RLTYP sy-vline 
WA_BUS050DFLD_STR-RLTYPTX sy-vline 
WA_BUS050DFLD_STR-RLTYPREFTX sy-vline 
WA_BUS050DFLD_STR-DATE_FROM_STR sy-vline 
WA_BUS050DFLD_STR-DATE_TO_STR sy-vline 
WA_BUS050DFLD_STR-DATE_FROM sy-vline 
WA_BUS050DFLD_STR-DATE_TO sy-vline 
WA_BUS050DFLD_STR-DATE_FIX sy-vline 
WA_BUS050DFLD_STR-XALL_REL sy-vline 
WA_BUS050DFLD_STR-XALL_RLD sy-vline 
WA_BUS050DFLD_STR-SORTF sy-vline 
WA_BUS050DFLD_STR-XSELDFT sy-vline 
WA_BUS050DFLD_STR-RELKIND sy-vline 
WA_BUS050DFLD_STR-RLDKIND sy-vline 
WA_BUS050DFLD_STR-KINDTX sy-vline 
WA_BUS050DFLD_STR-XFDREL sy-vline      INTO ld_text SEPARATED BY SPACE.

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