ABAP Select data from SAP table FKKEXC_PAY into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM FKKEXC_PAY
*  INTO TABLE @DATA(IT_FKKEXC_PAY2).
*--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_FKKEXC_PAY INDEX 1 INTO DATA(WA_FKKEXC_PAY2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<FKKEXC_PAY>-MANDT = 1.
<FKKEXC_PAY>-OFFIC = 1.
<FKKEXC_PAY>-CHDSK = 1.
<FKKEXC_PAY>-PAYID = 1.
<FKKEXC_PAY>-PAYTP = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_FKKEXC_PAY-SELNR, sy-vline,
  WA_FKKEXC_PAY-POSNR, sy-vline,
  WA_FKKEXC_PAY-CL_OPBEL, sy-vline,
  WA_FKKEXC_PAY-CL_GPART, sy-vline,
  WA_FKKEXC_PAY-CL_VKONT, sy-vline,
  WA_FKKEXC_PAY-CL_VTREF, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_FKKEXC_PAY 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_FKKEXC_PAY 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_FKKEXC_PAY INTO WA_FKKEXC_PAY.


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

*Conversion exit ALPHA, internal->external for field CL_GPART
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_FKKEXC_PAY-CL_GPART
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FKKEXC_PAY-CL_GPART.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field CL_VKONT
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_FKKEXC_PAY-CL_VKONT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FKKEXC_PAY-CL_VKONT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field CL_VTREF
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_FKKEXC_PAY-CL_VTREF
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FKKEXC_PAY-CL_VTREF.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field CL_XBLNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_FKKEXC_PAY-CL_XBLNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FKKEXC_PAY-CL_XBLNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field CL_NRZAS
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_FKKEXC_PAY-CL_NRZAS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FKKEXC_PAY-CL_NRZAS.
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_FKKEXC_PAY_STR, 
MANDT TYPE STRING,
OFFIC TYPE STRING,
CHDSK TYPE STRING,
PAYID TYPE STRING,
PAYTP TYPE STRING,
SELNR TYPE STRING,
POSNR TYPE STRING,
CL_OPBEL TYPE STRING,
CL_GPART TYPE STRING,
CL_VKONT TYPE STRING,
CL_VTREF TYPE STRING,
CL_XBLNR TYPE STRING,
CL_OPORD TYPE STRING,
CL_NRZAS TYPE STRING,
CL_RFZAS TYPE STRING,
CL_FAEDN TYPE STRING,
CL_AUGBW TYPE STRING,
CL_WAERS TYPE STRING,
CL_PDKEY TYPE STRING,
CCINS TYPE STRING,
CCNUM_MASKED TYPE STRING,
CCNUM TYPE STRING,
CCFOL TYPE STRING,
DATAB TYPE STRING,
DATBI TYPE STRING,
CCNAME TYPE STRING,
CGUID TYPE STRING,
ENCTP TYPE STRING,
CHCKN TYPE STRING,
BANKL TYPE STRING,
BANKS TYPE STRING,
XPGRO TYPE STRING,
BANKN TYPE STRING,
BKONT TYPE STRING,
BKREF TYPE STRING,
PSTNO TYPE STRING,END OF T_EKKO_STR.
DATA: WA_FKKEXC_PAY_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_FKKEXC_PAY_STR-MANDT sy-vline 
WA_FKKEXC_PAY_STR-OFFIC sy-vline 
WA_FKKEXC_PAY_STR-CHDSK sy-vline 
WA_FKKEXC_PAY_STR-PAYID sy-vline 
WA_FKKEXC_PAY_STR-PAYTP sy-vline 
WA_FKKEXC_PAY_STR-SELNR sy-vline 
WA_FKKEXC_PAY_STR-POSNR sy-vline 
WA_FKKEXC_PAY_STR-CL_OPBEL sy-vline 
WA_FKKEXC_PAY_STR-CL_GPART sy-vline 
WA_FKKEXC_PAY_STR-CL_VKONT sy-vline 
WA_FKKEXC_PAY_STR-CL_VTREF sy-vline 
WA_FKKEXC_PAY_STR-CL_XBLNR sy-vline 
WA_FKKEXC_PAY_STR-CL_OPORD sy-vline 
WA_FKKEXC_PAY_STR-CL_NRZAS sy-vline 
WA_FKKEXC_PAY_STR-CL_RFZAS sy-vline 
WA_FKKEXC_PAY_STR-CL_FAEDN sy-vline 
WA_FKKEXC_PAY_STR-CL_AUGBW sy-vline 
WA_FKKEXC_PAY_STR-CL_WAERS sy-vline 
WA_FKKEXC_PAY_STR-CL_PDKEY sy-vline 
WA_FKKEXC_PAY_STR-CCINS sy-vline 
WA_FKKEXC_PAY_STR-CCNUM_MASKED sy-vline 
WA_FKKEXC_PAY_STR-CCNUM sy-vline 
WA_FKKEXC_PAY_STR-CCFOL sy-vline 
WA_FKKEXC_PAY_STR-DATAB sy-vline 
WA_FKKEXC_PAY_STR-DATBI sy-vline 
WA_FKKEXC_PAY_STR-CCNAME sy-vline 
WA_FKKEXC_PAY_STR-CGUID sy-vline 
WA_FKKEXC_PAY_STR-ENCTP sy-vline 
WA_FKKEXC_PAY_STR-CHCKN sy-vline 
WA_FKKEXC_PAY_STR-BANKL sy-vline 
WA_FKKEXC_PAY_STR-BANKS sy-vline 
WA_FKKEXC_PAY_STR-XPGRO sy-vline 
WA_FKKEXC_PAY_STR-BANKN sy-vline 
WA_FKKEXC_PAY_STR-BKONT sy-vline 
WA_FKKEXC_PAY_STR-BKREF sy-vline 
WA_FKKEXC_PAY_STR-PSTNO sy-vline      INTO ld_text SEPARATED BY SPACE.

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