ABAP Select data from SAP table BANKDK_BF into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM BANKDK_BF
*  INTO TABLE @DATA(IT_BANKDK_BF2).
*--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_BANKDK_BF INDEX 1 INTO DATA(WA_BANKDK_BF2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<BANKDK_BF>-BANKL = 1.
<BANKDK_BF>-BANKNUM = 1.
<BANKDK_BF>-BANKA = 1.
<BANKDK_BF>-BRNCH = 1.
<BANKDK_BF>-STREET = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_BANKDK_BF-ZIPCODE, sy-vline,
  WA_BANKDK_BF-CITY, sy-vline,
  WA_BANKDK_BF-TELNUM, sy-vline,
  WA_BANKDK_BF-FORTELNUM, sy-vline,
  WA_BANKDK_BF-FAXNUM, sy-vline,
  WA_BANKDK_BF-PBSINFO, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_BANKDK_BF 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_BANKDK_BF 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_BANKDK_BF INTO WA_BANKDK_BF.


*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_BANKDK_BF_STR, 
BANKL TYPE STRING,
BANKNUM TYPE STRING,
BANKA TYPE STRING,
BRNCH TYPE STRING,
STREET TYPE STRING,
ZIPCODE TYPE STRING,
CITY TYPE STRING,
TELNUM TYPE STRING,
FORTELNUM TYPE STRING,
FAXNUM TYPE STRING,
PBSINFO TYPE STRING,END OF T_EKKO_STR.
DATA: WA_BANKDK_BF_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_BANKDK_BF_STR-BANKL sy-vline 
WA_BANKDK_BF_STR-BANKNUM sy-vline 
WA_BANKDK_BF_STR-BANKA sy-vline 
WA_BANKDK_BF_STR-BRNCH sy-vline 
WA_BANKDK_BF_STR-STREET sy-vline 
WA_BANKDK_BF_STR-ZIPCODE sy-vline 
WA_BANKDK_BF_STR-CITY sy-vline 
WA_BANKDK_BF_STR-TELNUM sy-vline 
WA_BANKDK_BF_STR-FORTELNUM sy-vline 
WA_BANKDK_BF_STR-FAXNUM sy-vline 
WA_BANKDK_BF_STR-PBSINFO sy-vline      INTO ld_text SEPARATED BY SPACE.

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