ABAP Select data from SAP table /PF1/STR_ACC_EXTERNAL into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP /PF1/STR_ACC_EXTERNAL 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 /PF1/STR_ACC_EXTERNAL. 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 /PF1/STR_ACC_EXTERNAL 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_/PF1/STR_ACC_EXTERNAL TYPE STANDARD TABLE OF /PF1/STR_ACC_EXTERNAL,
      WA_/PF1/STR_ACC_EXTERNAL TYPE /PF1/STR_ACC_EXTERNAL,
      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: </PF1/STR_ACC_EXTERNAL> TYPE /PF1/STR_ACC_EXTERNAL.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_/PF1/STR_ACC_EXTERNAL.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM /PF1/STR_ACC_EXTERNAL
  INTO TABLE IT_/PF1/STR_ACC_EXTERNAL.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM /PF1/STR_ACC_EXTERNAL
*  INTO TABLE @DATA(IT_/PF1/STR_ACC_EXTERNAL2).
*--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_/PF1/STR_ACC_EXTERNAL INDEX 1 INTO DATA(WA_/PF1/STR_ACC_EXTERNAL2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_/PF1/STR_ACC_EXTERNAL ASSIGNING </PF1/STR_ACC_EXTERNAL>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
</PF1/STR_ACC_EXTERNAL>-CURRENCY = 1.
</PF1/STR_ACC_EXTERNAL>-CURRENCY_DESC = 1.
</PF1/STR_ACC_EXTERNAL>-BANK_CTRY = 1.
</PF1/STR_ACC_EXTERNAL>-BANK_CTRYISO = 1.
</PF1/STR_ACC_EXTERNAL>-BANK_KEY = 1.

ENDLOOP.

LOOP AT IT_/PF1/STR_ACC_EXTERNAL INTO WA_/PF1/STR_ACC_EXTERNAL.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_/PF1/STR_ACC_EXTERNAL-BIC, sy-vline,
  WA_/PF1/STR_ACC_EXTERNAL-BANK_ACCT, sy-vline,
  WA_/PF1/STR_ACC_EXTERNAL-BANK_NAME, sy-vline,
  WA_/PF1/STR_ACC_EXTERNAL-CTRL_KEY, sy-vline,
  WA_/PF1/STR_ACC_EXTERNAL-BANK_REF, sy-vline,
  WA_/PF1/STR_ACC_EXTERNAL-ACCOUNTHOLDER, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_/PF1/STR_ACC_EXTERNAL 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_/PF1/STR_ACC_EXTERNAL 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_/PF1/STR_ACC_EXTERNAL INTO WA_/PF1/STR_ACC_EXTERNAL.


*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 BUSINESS_PARTNER
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_/PF1/STR_ACC_EXTERNAL-BUSINESS_PARTNER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/PF1/STR_ACC_EXTERNAL-BUSINESS_PARTNER.
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_/PF1/STR_ACC_EXTERNAL_STR, 
CURRENCY TYPE STRING,
CURRENCY_DESC TYPE STRING,
BANK_CTRY TYPE STRING,
BANK_CTRYISO TYPE STRING,
BANK_KEY TYPE STRING,
BIC TYPE STRING,
BANK_ACCT TYPE STRING,
BANK_NAME TYPE STRING,
CTRL_KEY TYPE STRING,
BANK_REF TYPE STRING,
ACCOUNTHOLDER TYPE STRING,
COLL_AUTH TYPE STRING,
EXTERNALBANKID TYPE STRING,
BANKACCOUNTNAME TYPE STRING,
IBAN TYPE STRING,
IBAN_FROM_DATE TYPE STRING,
BANKDETAILVALIDFROM TYPE STRING,
BANKDETAILVALIDTO TYPE STRING,
BANKDETAILMOVEDATE TYPE STRING,
BANKDETAILMOVEID TYPE STRING,
BUSINESS_PARTNER TYPE STRING,
ACCT_PRODUCT TYPE STRING,
GENERALLEDGERGROUP TYPE STRING,
FOREIGNCOUNTRYMARK TYPE STRING,END OF T_EKKO_STR.
DATA: WA_/PF1/STR_ACC_EXTERNAL_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_/PF1/STR_ACC_EXTERNAL_STR-CURRENCY sy-vline 
WA_/PF1/STR_ACC_EXTERNAL_STR-CURRENCY_DESC sy-vline 
WA_/PF1/STR_ACC_EXTERNAL_STR-BANK_CTRY sy-vline 
WA_/PF1/STR_ACC_EXTERNAL_STR-BANK_CTRYISO sy-vline 
WA_/PF1/STR_ACC_EXTERNAL_STR-BANK_KEY sy-vline 
WA_/PF1/STR_ACC_EXTERNAL_STR-BIC sy-vline 
WA_/PF1/STR_ACC_EXTERNAL_STR-BANK_ACCT sy-vline 
WA_/PF1/STR_ACC_EXTERNAL_STR-BANK_NAME sy-vline 
WA_/PF1/STR_ACC_EXTERNAL_STR-CTRL_KEY sy-vline 
WA_/PF1/STR_ACC_EXTERNAL_STR-BANK_REF sy-vline 
WA_/PF1/STR_ACC_EXTERNAL_STR-ACCOUNTHOLDER sy-vline 
WA_/PF1/STR_ACC_EXTERNAL_STR-COLL_AUTH sy-vline 
WA_/PF1/STR_ACC_EXTERNAL_STR-EXTERNALBANKID sy-vline 
WA_/PF1/STR_ACC_EXTERNAL_STR-BANKACCOUNTNAME sy-vline 
WA_/PF1/STR_ACC_EXTERNAL_STR-IBAN sy-vline 
WA_/PF1/STR_ACC_EXTERNAL_STR-IBAN_FROM_DATE sy-vline 
WA_/PF1/STR_ACC_EXTERNAL_STR-BANKDETAILVALIDFROM sy-vline 
WA_/PF1/STR_ACC_EXTERNAL_STR-BANKDETAILVALIDTO sy-vline 
WA_/PF1/STR_ACC_EXTERNAL_STR-BANKDETAILMOVEDATE sy-vline 
WA_/PF1/STR_ACC_EXTERNAL_STR-BANKDETAILMOVEID sy-vline 
WA_/PF1/STR_ACC_EXTERNAL_STR-BUSINESS_PARTNER sy-vline 
WA_/PF1/STR_ACC_EXTERNAL_STR-ACCT_PRODUCT sy-vline 
WA_/PF1/STR_ACC_EXTERNAL_STR-GENERALLEDGERGROUP sy-vline 
WA_/PF1/STR_ACC_EXTERNAL_STR-FOREIGNCOUNTRYMARK sy-vline      INTO ld_text SEPARATED BY SPACE.

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