ABAP Select data from SAP table M_BUPAB_TD into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM M_BUPAB_TD
*  INTO TABLE @DATA(IT_M_BUPAB_TD2).
*--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_M_BUPAB_TD INDEX 1 INTO DATA(WA_M_BUPAB_TD2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<M_BUPAB_TD>-CLIENT = 1.
<M_BUPAB_TD>-BANKL = 1.
<M_BUPAB_TD>-BANKN = 1.
<M_BUPAB_TD>-IBAN = 1.
<M_BUPAB_TD>-BANKS = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_M_BUPAB_TD-BU_SORT1, sy-vline,
  WA_M_BUPAB_TD-MC_NAME1, sy-vline,
  WA_M_BUPAB_TD-BU_SORT2, sy-vline,
  WA_M_BUPAB_TD-MC_NAME2, sy-vline,
  WA_M_BUPAB_TD-PARTNER, sy-vline,
  WA_M_BUPAB_TD-AUGRP, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_M_BUPAB_TD 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_M_BUPAB_TD 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_M_BUPAB_TD INTO WA_M_BUPAB_TD.


*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_M_BUPAB_TD-PARTNER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_M_BUPAB_TD-PARTNER.
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_M_BUPAB_TD_STR, 
CLIENT TYPE STRING,
BANKL TYPE STRING,
BANKN TYPE STRING,
IBAN TYPE STRING,
BANKS TYPE STRING,
BU_SORT1 TYPE STRING,
MC_NAME1 TYPE STRING,
BU_SORT2 TYPE STRING,
MC_NAME2 TYPE STRING,
PARTNER TYPE STRING,
AUGRP TYPE STRING,
VALID_FROM TYPE STRING,
VALID_TO TYPE STRING,
BP_VALID_FROM TYPE STRING,
BP_VALID_TO TYPE STRING,
PROTECT TYPE STRING,
ALIAS_IS_USED TYPE STRING,
BP_BANK_GUID TYPE STRING,END OF T_EKKO_STR.
DATA: WA_M_BUPAB_TD_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_M_BUPAB_TD_STR-CLIENT sy-vline 
WA_M_BUPAB_TD_STR-BANKL sy-vline 
WA_M_BUPAB_TD_STR-BANKN sy-vline 
WA_M_BUPAB_TD_STR-IBAN sy-vline 
WA_M_BUPAB_TD_STR-BANKS sy-vline 
WA_M_BUPAB_TD_STR-BU_SORT1 sy-vline 
WA_M_BUPAB_TD_STR-MC_NAME1 sy-vline 
WA_M_BUPAB_TD_STR-BU_SORT2 sy-vline 
WA_M_BUPAB_TD_STR-MC_NAME2 sy-vline 
WA_M_BUPAB_TD_STR-PARTNER sy-vline 
WA_M_BUPAB_TD_STR-AUGRP sy-vline 
WA_M_BUPAB_TD_STR-VALID_FROM sy-vline 
WA_M_BUPAB_TD_STR-VALID_TO sy-vline 
WA_M_BUPAB_TD_STR-BP_VALID_FROM sy-vline 
WA_M_BUPAB_TD_STR-BP_VALID_TO sy-vline 
WA_M_BUPAB_TD_STR-PROTECT sy-vline 
WA_M_BUPAB_TD_STR-ALIAS_IS_USED sy-vline 
WA_M_BUPAB_TD_STR-BP_BANK_GUID sy-vline      INTO ld_text SEPARATED BY SPACE.

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