ABAP Select data from SAP table BPDZAHL into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM BPDZAHL
*  INTO TABLE @DATA(IT_BPDZAHL2).
*--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_BPDZAHL INDEX 1 INTO DATA(WA_BPDZAHL2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<BPDZAHL>-MANDT = 1.
<BPDZAHL>-PARTNR = 1.
<BPDZAHL>-BUKRS = 1.
<BPDZAHL>-CUSTOMER = 1.
<BPDZAHL>-ZTERM = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_BPDZAHL-WAKON, sy-vline,
  WA_BPDZAHL-XZVER, sy-vline,
  WA_BPDZAHL-TOGRU, sy-vline,
  WA_BPDZAHL-KULTG, sy-vline,
  WA_BPDZAHL-URLID, sy-vline,
ENDLOOP.
   
*Add any further fields from structure WA_BPDZAHL 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_BPDZAHL 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_BPDZAHL INTO WA_BPDZAHL.


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

*Conversion exit ALPHA, internal->external for field CUSTOMER
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_BPDZAHL-CUSTOMER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_BPDZAHL-CUSTOMER.
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_BPDZAHL_STR, 
MANDT TYPE STRING,
PARTNR TYPE STRING,
BUKRS TYPE STRING,
CUSTOMER TYPE STRING,
ZTERM TYPE STRING,
WAKON TYPE STRING,
XZVER TYPE STRING,
TOGRU TYPE STRING,
KULTG TYPE STRING,
URLID TYPE STRING,END OF T_EKKO_STR.
DATA: WA_BPDZAHL_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_BPDZAHL_STR-MANDT sy-vline 
WA_BPDZAHL_STR-PARTNR sy-vline 
WA_BPDZAHL_STR-BUKRS sy-vline 
WA_BPDZAHL_STR-CUSTOMER sy-vline 
WA_BPDZAHL_STR-ZTERM sy-vline 
WA_BPDZAHL_STR-WAKON sy-vline 
WA_BPDZAHL_STR-XZVER sy-vline 
WA_BPDZAHL_STR-TOGRU sy-vline 
WA_BPDZAHL_STR-KULTG sy-vline 
WA_BPDZAHL_STR-URLID sy-vline      INTO ld_text SEPARATED BY SPACE.

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