ABAP Select data from SAP table BNKA into internal table

Get Example source ABAP code based on a different SAP table
  Get ABAP code

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM BNKA
*  INTO TABLE @DATA(IT_BNKA2).
*--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_BNKA INDEX 1 INTO DATA(WA_BNKA2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<BNKA>-MANDT = 1.
<BNKA>-BANKS = 1.
<BNKA>-BANKL = 1.
<BNKA>-ERDAT = 1.
<BNKA>-ERNAM = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_BNKA-BANKA, sy-vline,
  WA_BNKA-PROVZ, sy-vline,
  WA_BNKA-STRAS, sy-vline,
  WA_BNKA-ORT01, sy-vline,
  WA_BNKA-SWIFT, sy-vline,
  WA_BNKA-BGRUP, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_BNKA 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_BNKA 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_BNKA INTO WA_BNKA.


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

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

*Conversion exit ALPHA, internal->external for field VERS
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_BNKA-VERS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_BNKA-VERS.
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_BNKA_STR, 
MANDT TYPE STRING,
BANKS TYPE STRING,
BANKL TYPE STRING,
ERDAT TYPE STRING,
ERNAM TYPE STRING,
BANKA TYPE STRING,
PROVZ TYPE STRING,
STRAS TYPE STRING,
ORT01 TYPE STRING,
SWIFT TYPE STRING,
BGRUP TYPE STRING,
XPGRO TYPE STRING,
LOEVM TYPE STRING,
BNKLZ TYPE STRING,
PSKTO TYPE STRING,
ADRNR TYPE STRING,
BRNCH TYPE STRING,
CHKME TYPE STRING,
VERS TYPE STRING,
IBAN_RULE TYPE STRING,
SDD_B2B TYPE STRING,
SDD_COR1 TYPE STRING,
SDD_RTRANS TYPE STRING,
ZNOCHECK TYPE STRING,
ZACC_LEN TYPE STRING,
ZRES1 TYPE STRING,
ZRES2 TYPE STRING,
ZRES3 TYPE STRING,
ZRES4 TYPE STRING,
ZRES5 TYPE STRING,
ZRES6 TYPE STRING,
ZRES7 TYPE STRING,
ZRES8 TYPE STRING,
ZRES9 TYPE STRING,
ZRES10 TYPE STRING,
BICKY TYPE STRING,
RCCODE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_BNKA_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_BNKA_STR-MANDT sy-vline 
WA_BNKA_STR-BANKS sy-vline 
WA_BNKA_STR-BANKL sy-vline 
WA_BNKA_STR-ERDAT sy-vline 
WA_BNKA_STR-ERNAM sy-vline 
WA_BNKA_STR-BANKA sy-vline 
WA_BNKA_STR-PROVZ sy-vline 
WA_BNKA_STR-STRAS sy-vline 
WA_BNKA_STR-ORT01 sy-vline 
WA_BNKA_STR-SWIFT sy-vline 
WA_BNKA_STR-BGRUP sy-vline 
WA_BNKA_STR-XPGRO sy-vline 
WA_BNKA_STR-LOEVM sy-vline 
WA_BNKA_STR-BNKLZ sy-vline 
WA_BNKA_STR-PSKTO sy-vline 
WA_BNKA_STR-ADRNR sy-vline 
WA_BNKA_STR-BRNCH sy-vline 
WA_BNKA_STR-CHKME sy-vline 
WA_BNKA_STR-VERS sy-vline 
WA_BNKA_STR-IBAN_RULE sy-vline 
WA_BNKA_STR-SDD_B2B sy-vline 
WA_BNKA_STR-SDD_COR1 sy-vline 
WA_BNKA_STR-SDD_RTRANS sy-vline 
WA_BNKA_STR-ZNOCHECK sy-vline 
WA_BNKA_STR-ZACC_LEN sy-vline 
WA_BNKA_STR-ZRES1 sy-vline 
WA_BNKA_STR-ZRES2 sy-vline 
WA_BNKA_STR-ZRES3 sy-vline 
WA_BNKA_STR-ZRES4 sy-vline 
WA_BNKA_STR-ZRES5 sy-vline 
WA_BNKA_STR-ZRES6 sy-vline 
WA_BNKA_STR-ZRES7 sy-vline 
WA_BNKA_STR-ZRES8 sy-vline 
WA_BNKA_STR-ZRES9 sy-vline 
WA_BNKA_STR-ZRES10 sy-vline 
WA_BNKA_STR-BICKY sy-vline 
WA_BNKA_STR-RCCODE sy-vline      INTO ld_text SEPARATED BY SPACE.

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