ABAP Select data from SAP table TBCO_BANKCHAIN into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM TBCO_BANKCHAIN
*  INTO TABLE @DATA(IT_TBCO_BANKCHAIN2).
*--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_TBCO_BANKCHAIN INDEX 1 INTO DATA(WA_TBCO_BANKCHAIN2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<TBCO_BANKCHAIN>-CHAINTX = 1.
<TBCO_BANKCHAIN>-CHAINNO = 1.
<TBCO_BANKCHAIN>-BANKS = 1.
<TBCO_BANKCHAIN>-BANKL = 1.
<TBCO_BANKCHAIN>-ERDAT = 1.

ENDLOOP.

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

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


*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_TBCO_BANKCHAIN-ADRNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_TBCO_BANKCHAIN-ADRNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field CHKME
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_TBCO_BANKCHAIN-CHKME
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_TBCO_BANKCHAIN-CHKME.
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_TBCO_BANKCHAIN_STR, 
CHAINTX TYPE STRING,
CHAINNO 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,
BANKN TYPE STRING,
BNTYP TYPE STRING,
BKONT TYPE STRING,
BKREF TYPE STRING,
IBAN TYPE STRING,END OF T_EKKO_STR.
DATA: WA_TBCO_BANKCHAIN_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_TBCO_BANKCHAIN_STR-CHAINTX sy-vline 
WA_TBCO_BANKCHAIN_STR-CHAINNO sy-vline 
WA_TBCO_BANKCHAIN_STR-BANKS sy-vline 
WA_TBCO_BANKCHAIN_STR-BANKL sy-vline 
WA_TBCO_BANKCHAIN_STR-ERDAT sy-vline 
WA_TBCO_BANKCHAIN_STR-ERNAM sy-vline 
WA_TBCO_BANKCHAIN_STR-BANKA sy-vline 
WA_TBCO_BANKCHAIN_STR-PROVZ sy-vline 
WA_TBCO_BANKCHAIN_STR-STRAS sy-vline 
WA_TBCO_BANKCHAIN_STR-ORT01 sy-vline 
WA_TBCO_BANKCHAIN_STR-SWIFT sy-vline 
WA_TBCO_BANKCHAIN_STR-BGRUP sy-vline 
WA_TBCO_BANKCHAIN_STR-XPGRO sy-vline 
WA_TBCO_BANKCHAIN_STR-LOEVM sy-vline 
WA_TBCO_BANKCHAIN_STR-BNKLZ sy-vline 
WA_TBCO_BANKCHAIN_STR-PSKTO sy-vline 
WA_TBCO_BANKCHAIN_STR-ADRNR sy-vline 
WA_TBCO_BANKCHAIN_STR-BRNCH sy-vline 
WA_TBCO_BANKCHAIN_STR-CHKME sy-vline 
WA_TBCO_BANKCHAIN_STR-BANKN sy-vline 
WA_TBCO_BANKCHAIN_STR-BNTYP sy-vline 
WA_TBCO_BANKCHAIN_STR-BKONT sy-vline 
WA_TBCO_BANKCHAIN_STR-BKREF sy-vline 
WA_TBCO_BANKCHAIN_STR-IBAN sy-vline      INTO ld_text SEPARATED BY SPACE.

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