ABAP Select data from SAP table TRFT_POS_ACCOUNT into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM TRFT_POS_ACCOUNT
*  INTO TABLE @DATA(IT_TRFT_POS_ACCOUNT2).
*--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_TRFT_POS_ACCOUNT INDEX 1 INTO DATA(WA_TRFT_POS_ACCOUNT2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<TRFT_POS_ACCOUNT>-MANDT = 1.
<TRFT_POS_ACCOUNT>-COMPANY_CODE = 1.
<TRFT_POS_ACCOUNT>-POS_ACCOUNT = 1.
<TRFT_POS_ACCOUNT>-POS_ACC_TEXT = 1.
<TRFT_POS_ACCOUNT>-SETTLEMENT_ACC = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_TRFT_POS_ACCOUNT-POS_ACC_NUMBER, sy-vline,
  WA_TRFT_POS_ACCOUNT-POS_ACC_BANK, sy-vline,
  WA_TRFT_POS_ACCOUNT-HOUSE_BANK, sy-vline,
  WA_TRFT_POS_ACCOUNT-HOUSE_BANK_ACC, sy-vline,
  WA_TRFT_POS_ACCOUNT-RGSBER, sy-vline,
  WA_TRFT_POS_ACCOUNT-RPORTB, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_TRFT_POS_ACCOUNT 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_TRFT_POS_ACCOUNT 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_TRFT_POS_ACCOUNT INTO WA_TRFT_POS_ACCOUNT.


*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 POS_ACC_BANK
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_TRFT_POS_ACCOUNT-POS_ACC_BANK
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_TRFT_POS_ACCOUNT-POS_ACC_BANK.
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_TRFT_POS_ACCOUNT_STR, 
MANDT TYPE STRING,
COMPANY_CODE TYPE STRING,
POS_ACCOUNT TYPE STRING,
POS_ACC_TEXT TYPE STRING,
SETTLEMENT_ACC TYPE STRING,
POS_ACC_NUMBER TYPE STRING,
POS_ACC_BANK TYPE STRING,
HOUSE_BANK TYPE STRING,
HOUSE_BANK_ACC TYPE STRING,
RGSBER TYPE STRING,
RPORTB TYPE STRING,
RERF TYPE STRING,
DERF TYPE STRING,
TERF TYPE STRING,
REHER TYPE STRING,
RBEAR TYPE STRING,
DBEAR TYPE STRING,
TBEAR TYPE STRING,
RBHER TYPE STRING,
BLABLA TYPE STRING,
ATTRIBUTE_SA01 TYPE STRING,
ATTRIBUTE_SA02 TYPE STRING,
ATTRIBUTE_SC03 TYPE STRING,
ATTRIBUTE_SC04 TYPE STRING,
ATTRIBUTE_MA01 TYPE STRING,
ATTRIBUTE_MA02 TYPE STRING,
ATTRIBUTE_MC03 TYPE STRING,
ATTRIBUTE_MC04 TYPE STRING,
ATTRIBUTE_LA01 TYPE STRING,
ATTRIBUTE_LA02 TYPE STRING,
ATTRIBUTE_LC03 TYPE STRING,
ATTRIBUTE_LC04 TYPE STRING,END OF T_EKKO_STR.
DATA: WA_TRFT_POS_ACCOUNT_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_TRFT_POS_ACCOUNT_STR-MANDT sy-vline 
WA_TRFT_POS_ACCOUNT_STR-COMPANY_CODE sy-vline 
WA_TRFT_POS_ACCOUNT_STR-POS_ACCOUNT sy-vline 
WA_TRFT_POS_ACCOUNT_STR-POS_ACC_TEXT sy-vline 
WA_TRFT_POS_ACCOUNT_STR-SETTLEMENT_ACC sy-vline 
WA_TRFT_POS_ACCOUNT_STR-POS_ACC_NUMBER sy-vline 
WA_TRFT_POS_ACCOUNT_STR-POS_ACC_BANK sy-vline 
WA_TRFT_POS_ACCOUNT_STR-HOUSE_BANK sy-vline 
WA_TRFT_POS_ACCOUNT_STR-HOUSE_BANK_ACC sy-vline 
WA_TRFT_POS_ACCOUNT_STR-RGSBER sy-vline 
WA_TRFT_POS_ACCOUNT_STR-RPORTB sy-vline 
WA_TRFT_POS_ACCOUNT_STR-RERF sy-vline 
WA_TRFT_POS_ACCOUNT_STR-DERF sy-vline 
WA_TRFT_POS_ACCOUNT_STR-TERF sy-vline 
WA_TRFT_POS_ACCOUNT_STR-REHER sy-vline 
WA_TRFT_POS_ACCOUNT_STR-RBEAR sy-vline 
WA_TRFT_POS_ACCOUNT_STR-DBEAR sy-vline 
WA_TRFT_POS_ACCOUNT_STR-TBEAR sy-vline 
WA_TRFT_POS_ACCOUNT_STR-RBHER sy-vline 
WA_TRFT_POS_ACCOUNT_STR-BLABLA sy-vline 
WA_TRFT_POS_ACCOUNT_STR-ATTRIBUTE_SA01 sy-vline 
WA_TRFT_POS_ACCOUNT_STR-ATTRIBUTE_SA02 sy-vline 
WA_TRFT_POS_ACCOUNT_STR-ATTRIBUTE_SC03 sy-vline 
WA_TRFT_POS_ACCOUNT_STR-ATTRIBUTE_SC04 sy-vline 
WA_TRFT_POS_ACCOUNT_STR-ATTRIBUTE_MA01 sy-vline 
WA_TRFT_POS_ACCOUNT_STR-ATTRIBUTE_MA02 sy-vline 
WA_TRFT_POS_ACCOUNT_STR-ATTRIBUTE_MC03 sy-vline 
WA_TRFT_POS_ACCOUNT_STR-ATTRIBUTE_MC04 sy-vline 
WA_TRFT_POS_ACCOUNT_STR-ATTRIBUTE_LA01 sy-vline 
WA_TRFT_POS_ACCOUNT_STR-ATTRIBUTE_LA02 sy-vline 
WA_TRFT_POS_ACCOUNT_STR-ATTRIBUTE_LC03 sy-vline 
WA_TRFT_POS_ACCOUNT_STR-ATTRIBUTE_LC04 sy-vline      INTO ld_text SEPARATED BY SPACE.

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