ABAP Select data from SAP table BUSTBZ3P into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP BUSTBZ3P 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 BUSTBZ3P. 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 BUSTBZ3P 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_BUSTBZ3P TYPE STANDARD TABLE OF BUSTBZ3P,
      WA_BUSTBZ3P TYPE BUSTBZ3P,
      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: <BUSTBZ3P> TYPE BUSTBZ3P.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_BUSTBZ3P.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM BUSTBZ3P
  INTO TABLE IT_BUSTBZ3P.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM BUSTBZ3P
*  INTO TABLE @DATA(IT_BUSTBZ3P2).
*--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_BUSTBZ3P INDEX 1 INTO DATA(WA_BUSTBZ3P2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_BUSTBZ3P ASSIGNING <BUSTBZ3P>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<BUSTBZ3P>-CLIENT = 1.
<BUSTBZ3P>-TYPE = 1.
<BUSTBZ3P>-FELDSTLST1 = 1.
<BUSTBZ3P>-FELDSTLST2 = 1.
<BUSTBZ3P>-FELDSTLST3 = 1.

ENDLOOP.

LOOP AT IT_BUSTBZ3P INTO WA_BUSTBZ3P.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_BUSTBZ3P-FELDSTLST4, sy-vline,
  WA_BUSTBZ3P-FELDSTLST5, sy-vline,
  WA_BUSTBZ3P-FELDSTLST6, sy-vline,
  WA_BUSTBZ3P-FELDSTLST7, sy-vline,
  WA_BUSTBZ3P-FELDSTLST8, sy-vline,
  WA_BUSTBZ3P-FELDSTLST9, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_BUSTBZ3P 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_BUSTBZ3P 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_BUSTBZ3P INTO WA_BUSTBZ3P.


*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_BUSTBZ3P_STR, 
CLIENT TYPE STRING,
TYPE TYPE STRING,
FELDSTLST1 TYPE STRING,
FELDSTLST2 TYPE STRING,
FELDSTLST3 TYPE STRING,
FELDSTLST4 TYPE STRING,
FELDSTLST5 TYPE STRING,
FELDSTLST6 TYPE STRING,
FELDSTLST7 TYPE STRING,
FELDSTLST8 TYPE STRING,
FELDSTLST9 TYPE STRING,
FELDSTLST10 TYPE STRING,
FELDSTLST11 TYPE STRING,
FELDSTLST12 TYPE STRING,
FELDSTLST13 TYPE STRING,
FELDSTLST14 TYPE STRING,
FELDSTLST15 TYPE STRING,
FELDSTLST16 TYPE STRING,
FELDSTLST17 TYPE STRING,
FELDSTLST18 TYPE STRING,
FELDSTLST19 TYPE STRING,
FELDSTLST20 TYPE STRING,
FELDSTLST21 TYPE STRING,
FELDSTLST22 TYPE STRING,
FELDSTLST23 TYPE STRING,
FELDSTLST24 TYPE STRING,
FELDSTLST25 TYPE STRING,
FELDSTLST26 TYPE STRING,
FELDSTLST27 TYPE STRING,
FELDSTLST28 TYPE STRING,END OF T_EKKO_STR.
DATA: WA_BUSTBZ3P_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_BUSTBZ3P_STR-CLIENT sy-vline 
WA_BUSTBZ3P_STR-TYPE sy-vline 
WA_BUSTBZ3P_STR-FELDSTLST1 sy-vline 
WA_BUSTBZ3P_STR-FELDSTLST2 sy-vline 
WA_BUSTBZ3P_STR-FELDSTLST3 sy-vline 
WA_BUSTBZ3P_STR-FELDSTLST4 sy-vline 
WA_BUSTBZ3P_STR-FELDSTLST5 sy-vline 
WA_BUSTBZ3P_STR-FELDSTLST6 sy-vline 
WA_BUSTBZ3P_STR-FELDSTLST7 sy-vline 
WA_BUSTBZ3P_STR-FELDSTLST8 sy-vline 
WA_BUSTBZ3P_STR-FELDSTLST9 sy-vline 
WA_BUSTBZ3P_STR-FELDSTLST10 sy-vline 
WA_BUSTBZ3P_STR-FELDSTLST11 sy-vline 
WA_BUSTBZ3P_STR-FELDSTLST12 sy-vline 
WA_BUSTBZ3P_STR-FELDSTLST13 sy-vline 
WA_BUSTBZ3P_STR-FELDSTLST14 sy-vline 
WA_BUSTBZ3P_STR-FELDSTLST15 sy-vline 
WA_BUSTBZ3P_STR-FELDSTLST16 sy-vline 
WA_BUSTBZ3P_STR-FELDSTLST17 sy-vline 
WA_BUSTBZ3P_STR-FELDSTLST18 sy-vline 
WA_BUSTBZ3P_STR-FELDSTLST19 sy-vline 
WA_BUSTBZ3P_STR-FELDSTLST20 sy-vline 
WA_BUSTBZ3P_STR-FELDSTLST21 sy-vline 
WA_BUSTBZ3P_STR-FELDSTLST22 sy-vline 
WA_BUSTBZ3P_STR-FELDSTLST23 sy-vline 
WA_BUSTBZ3P_STR-FELDSTLST24 sy-vline 
WA_BUSTBZ3P_STR-FELDSTLST25 sy-vline 
WA_BUSTBZ3P_STR-FELDSTLST26 sy-vline 
WA_BUSTBZ3P_STR-FELDSTLST27 sy-vline 
WA_BUSTBZ3P_STR-FELDSTLST28 sy-vline      INTO ld_text SEPARATED BY SPACE.

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