ABAP Select data from SAP table ABKACCSIG into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM ABKACCSIG
*  INTO TABLE @DATA(IT_ABKACCSIG2).
*--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_ABKACCSIG INDEX 1 INTO DATA(WA_ABKACCSIG2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<ABKACCSIG>-MANDT = 1.
<ABKACCSIG>-BANKACCOUNT = 1.
<ABKACCSIG>-IBAN = 1.
<ABKACCSIG>-BANKCOUNTRY = 1.
<ABKACCSIG>-BANKNUMBER = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_ABKACCSIG-BANKACCOUNTCURRENCY, sy-vline,
  WA_ABKACCSIG-COMPANYCODE, sy-vline,
  WA_ABKACCSIG-COMPANYCODENAME, sy-vline,
  WA_ABKACCSIG-BANKACCOUNTHOLDERNAME, sy-vline,
  WA_ABKACCSIG-BANKACCOUNTINTERNALID, sy-vline,
  WA_ABKACCSIG-BANKNAME, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_ABKACCSIG 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_ABKACCSIG 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_ABKACCSIG INTO WA_ABKACCSIG.


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

*Conversion exit ALPHA, internal->external for field SEGMENT
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_ABKACCSIG-SEGMENT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ABKACCSIG-SEGMENT.
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_ABKACCSIG_STR, 
MANDT TYPE STRING,
BANKACCOUNT TYPE STRING,
IBAN TYPE STRING,
BANKCOUNTRY TYPE STRING,
BANKNUMBER TYPE STRING,
BANKACCOUNTCURRENCY TYPE STRING,
COMPANYCODE TYPE STRING,
COMPANYCODENAME TYPE STRING,
BANKACCOUNTHOLDERNAME TYPE STRING,
BANKACCOUNTINTERNALID TYPE STRING,
BANKNAME TYPE STRING,
PROFITCENTER TYPE STRING,
SEGMENT TYPE STRING,
BUSINESSAREA TYPE STRING,
BANKACCOUNTTYPE TYPE STRING,
CONTROLLINGAREA TYPE STRING,
BICNUMBER TYPE STRING,
APPROVALTYPE TYPE STRING,
RELEASEPROCEDURE TYPE STRING,
SIGNATORYPATTERN TYPE STRING,END OF T_EKKO_STR.
DATA: WA_ABKACCSIG_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_ABKACCSIG_STR-MANDT sy-vline 
WA_ABKACCSIG_STR-BANKACCOUNT sy-vline 
WA_ABKACCSIG_STR-IBAN sy-vline 
WA_ABKACCSIG_STR-BANKCOUNTRY sy-vline 
WA_ABKACCSIG_STR-BANKNUMBER sy-vline 
WA_ABKACCSIG_STR-BANKACCOUNTCURRENCY sy-vline 
WA_ABKACCSIG_STR-COMPANYCODE sy-vline 
WA_ABKACCSIG_STR-COMPANYCODENAME sy-vline 
WA_ABKACCSIG_STR-BANKACCOUNTHOLDERNAME sy-vline 
WA_ABKACCSIG_STR-BANKACCOUNTINTERNALID sy-vline 
WA_ABKACCSIG_STR-BANKNAME sy-vline 
WA_ABKACCSIG_STR-PROFITCENTER sy-vline 
WA_ABKACCSIG_STR-SEGMENT sy-vline 
WA_ABKACCSIG_STR-BUSINESSAREA sy-vline 
WA_ABKACCSIG_STR-BANKACCOUNTTYPE sy-vline 
WA_ABKACCSIG_STR-CONTROLLINGAREA sy-vline 
WA_ABKACCSIG_STR-BICNUMBER sy-vline 
WA_ABKACCSIG_STR-APPROVALTYPE sy-vline 
WA_ABKACCSIG_STR-RELEASEPROCEDURE sy-vline 
WA_ABKACCSIG_STR-SIGNATORYPATTERN sy-vline      INTO ld_text SEPARATED BY SPACE.

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