ABAP Select data from SAP table REEXC_PAYMENT_METHOD_X into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM REEXC_PAYMENT_METHOD_X
*  INTO TABLE @DATA(IT_REEXC_PAYMENT_METHOD_X2).
*--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_REEXC_PAYMENT_METHOD_X INDEX 1 INTO DATA(WA_REEXC_PAYMENT_METHOD_X2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<REEXC_PAYMENT_METHOD_X>-MANDT = 1.
<REEXC_PAYMENT_METHOD_X>-LAND1 = 1.
<REEXC_PAYMENT_METHOD_X>-ZLSCH = 1.
<REEXC_PAYMENT_METHOD_X>-TEXT1 = 1.
<REEXC_PAYMENT_METHOD_X>-XBKKT = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_REEXC_PAYMENT_METHOD_X-XSTRA, sy-vline,
  WA_REEXC_PAYMENT_METHOD_X-XEINZ, sy-vline,
  WA_REEXC_PAYMENT_METHOD_X-XESRD, sy-vline,
  WA_REEXC_PAYMENT_METHOD_X-XPGIR, sy-vline,
  WA_REEXC_PAYMENT_METHOD_X-XEZER, sy-vline,
  WA_REEXC_PAYMENT_METHOD_X-XSCHK, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_REEXC_PAYMENT_METHOD_X 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_REEXC_PAYMENT_METHOD_X 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_REEXC_PAYMENT_METHOD_X INTO WA_REEXC_PAYMENT_METHOD_X.


*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.
ENDFORM. 

*&---------------------------------------------------------------------*
*& Form process_as_string_field_values
*&---------------------------------------------------------------------*
FORM process_as_string_field_values CHANGING p_EKKO LIKE wa_EKKO.

TYPES: BEGIN OF T_REEXC_PAYMENT_METHOD_X_STR, 
MANDT TYPE STRING,
LAND1 TYPE STRING,
ZLSCH TYPE STRING,
TEXT1 TYPE STRING,
XBKKT TYPE STRING,
XSTRA TYPE STRING,
XEINZ TYPE STRING,
XESRD TYPE STRING,
XPGIR TYPE STRING,
XEZER TYPE STRING,
XSCHK TYPE STRING,
PROGN TYPE STRING,
XZWHR TYPE STRING,
XEURO TYPE STRING,
FORMI TYPE STRING,
FORMZ TYPE STRING,
XWECH TYPE STRING,
XWANF TYPE STRING,
XPSKT TYPE STRING,
XWECS TYPE STRING,
BLART TYPE STRING,
BLARV TYPE STRING,
UMSKZ TYPE STRING,
XSWEC TYPE STRING,
TXTSL TYPE STRING,
ZLSTN TYPE STRING,
WLSTN TYPE STRING,
XZANF TYPE STRING,
XAKTZ TYPE STRING,
WEART TYPE STRING,
XNOPO TYPE STRING,
XORB TYPE STRING,
XIBAN TYPE STRING,
XNO_ACCNO TYPE STRING,
XSEPA TYPE STRING,END OF T_EKKO_STR.
DATA: WA_REEXC_PAYMENT_METHOD_X_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_REEXC_PAYMENT_METHOD_X_STR-MANDT sy-vline 
WA_REEXC_PAYMENT_METHOD_X_STR-LAND1 sy-vline 
WA_REEXC_PAYMENT_METHOD_X_STR-ZLSCH sy-vline 
WA_REEXC_PAYMENT_METHOD_X_STR-TEXT1 sy-vline 
WA_REEXC_PAYMENT_METHOD_X_STR-XBKKT sy-vline 
WA_REEXC_PAYMENT_METHOD_X_STR-XSTRA sy-vline 
WA_REEXC_PAYMENT_METHOD_X_STR-XEINZ sy-vline 
WA_REEXC_PAYMENT_METHOD_X_STR-XESRD sy-vline 
WA_REEXC_PAYMENT_METHOD_X_STR-XPGIR sy-vline 
WA_REEXC_PAYMENT_METHOD_X_STR-XEZER sy-vline 
WA_REEXC_PAYMENT_METHOD_X_STR-XSCHK sy-vline 
WA_REEXC_PAYMENT_METHOD_X_STR-PROGN sy-vline 
WA_REEXC_PAYMENT_METHOD_X_STR-XZWHR sy-vline 
WA_REEXC_PAYMENT_METHOD_X_STR-XEURO sy-vline 
WA_REEXC_PAYMENT_METHOD_X_STR-FORMI sy-vline 
WA_REEXC_PAYMENT_METHOD_X_STR-FORMZ sy-vline 
WA_REEXC_PAYMENT_METHOD_X_STR-XWECH sy-vline 
WA_REEXC_PAYMENT_METHOD_X_STR-XWANF sy-vline 
WA_REEXC_PAYMENT_METHOD_X_STR-XPSKT sy-vline 
WA_REEXC_PAYMENT_METHOD_X_STR-XWECS sy-vline 
WA_REEXC_PAYMENT_METHOD_X_STR-BLART sy-vline 
WA_REEXC_PAYMENT_METHOD_X_STR-BLARV sy-vline 
WA_REEXC_PAYMENT_METHOD_X_STR-UMSKZ sy-vline 
WA_REEXC_PAYMENT_METHOD_X_STR-XSWEC sy-vline 
WA_REEXC_PAYMENT_METHOD_X_STR-TXTSL sy-vline 
WA_REEXC_PAYMENT_METHOD_X_STR-ZLSTN sy-vline 
WA_REEXC_PAYMENT_METHOD_X_STR-WLSTN sy-vline 
WA_REEXC_PAYMENT_METHOD_X_STR-XZANF sy-vline 
WA_REEXC_PAYMENT_METHOD_X_STR-XAKTZ sy-vline 
WA_REEXC_PAYMENT_METHOD_X_STR-WEART sy-vline 
WA_REEXC_PAYMENT_METHOD_X_STR-XNOPO sy-vline 
WA_REEXC_PAYMENT_METHOD_X_STR-XORB sy-vline 
WA_REEXC_PAYMENT_METHOD_X_STR-XIBAN sy-vline 
WA_REEXC_PAYMENT_METHOD_X_STR-XNO_ACCNO sy-vline 
WA_REEXC_PAYMENT_METHOD_X_STR-XSEPA sy-vline      INTO ld_text SEPARATED BY SPACE.

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