ABAP Select data from SAP table FKKCOLLPAYM into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM FKKCOLLPAYM
*  INTO TABLE @DATA(IT_FKKCOLLPAYM2).
*--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_FKKCOLLPAYM INDEX 1 INTO DATA(WA_FKKCOLLPAYM2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<FKKCOLLPAYM>-MANDT = 1.
<FKKCOLLPAYM>-INKGP = 1.
<FKKCOLLPAYM>-COLLPAYM_ID = 1.
<FKKCOLLPAYM>-COLLPAYM_TP = 1.
<FKKCOLLPAYM>-TSPNR = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_FKKCOLLPAYM-COLLPAYM_KY, sy-vline,
  WA_FKKCOLLPAYM-GPART, sy-vline,
  WA_FKKCOLLPAYM-BETRW, sy-vline,
  WA_FKKCOLLPAYM-WAERS, sy-vline,
  WA_FKKCOLLPAYM-VALUT, sy-vline,
  WA_FKKCOLLPAYM-REVDT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_FKKCOLLPAYM 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_FKKCOLLPAYM 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_FKKCOLLPAYM INTO WA_FKKCOLLPAYM.


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

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

*Conversion exit ALPHA, internal->external for field OPBEL
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_FKKCOLLPAYM-OPBEL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FKKCOLLPAYM-OPBEL.
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_FKKCOLLPAYM_STR, 
MANDT TYPE STRING,
INKGP TYPE STRING,
COLLPAYM_ID TYPE STRING,
COLLPAYM_TP TYPE STRING,
TSPNR TYPE STRING,
COLLPAYM_KY TYPE STRING,
GPART TYPE STRING,
BETRW TYPE STRING,
WAERS TYPE STRING,
VALUT TYPE STRING,
REVDT TYPE STRING,
CHCKN TYPE STRING,
TXTKM TYPE STRING,
OPBEL TYPE STRING,
PRCST TYPE STRING,
LAUFD TYPE STRING,
LAUFI TYPE STRING,
SDDAT TYPE STRING,
RVDAT TYPE STRING,
XIGUID TYPE STRING,
MSGTY TYPE STRING,
MSGID TYPE STRING,
MSGNO TYPE STRING,
MSGV1 TYPE STRING,
MSGV2 TYPE STRING,
MSGV3 TYPE STRING,
MSGV4 TYPE STRING,
AENAM TYPE STRING,
ACPDT TYPE STRING,
ACPTM TYPE STRING,END OF T_EKKO_STR.
DATA: WA_FKKCOLLPAYM_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_FKKCOLLPAYM_STR-MANDT sy-vline 
WA_FKKCOLLPAYM_STR-INKGP sy-vline 
WA_FKKCOLLPAYM_STR-COLLPAYM_ID sy-vline 
WA_FKKCOLLPAYM_STR-COLLPAYM_TP sy-vline 
WA_FKKCOLLPAYM_STR-TSPNR sy-vline 
WA_FKKCOLLPAYM_STR-COLLPAYM_KY sy-vline 
WA_FKKCOLLPAYM_STR-GPART sy-vline 
WA_FKKCOLLPAYM_STR-BETRW sy-vline 
WA_FKKCOLLPAYM_STR-WAERS sy-vline 
WA_FKKCOLLPAYM_STR-VALUT sy-vline 
WA_FKKCOLLPAYM_STR-REVDT sy-vline 
WA_FKKCOLLPAYM_STR-CHCKN sy-vline 
WA_FKKCOLLPAYM_STR-TXTKM sy-vline 
WA_FKKCOLLPAYM_STR-OPBEL sy-vline 
WA_FKKCOLLPAYM_STR-PRCST sy-vline 
WA_FKKCOLLPAYM_STR-LAUFD sy-vline 
WA_FKKCOLLPAYM_STR-LAUFI sy-vline 
WA_FKKCOLLPAYM_STR-SDDAT sy-vline 
WA_FKKCOLLPAYM_STR-RVDAT sy-vline 
WA_FKKCOLLPAYM_STR-XIGUID sy-vline 
WA_FKKCOLLPAYM_STR-MSGTY sy-vline 
WA_FKKCOLLPAYM_STR-MSGID sy-vline 
WA_FKKCOLLPAYM_STR-MSGNO sy-vline 
WA_FKKCOLLPAYM_STR-MSGV1 sy-vline 
WA_FKKCOLLPAYM_STR-MSGV2 sy-vline 
WA_FKKCOLLPAYM_STR-MSGV3 sy-vline 
WA_FKKCOLLPAYM_STR-MSGV4 sy-vline 
WA_FKKCOLLPAYM_STR-AENAM sy-vline 
WA_FKKCOLLPAYM_STR-ACPDT sy-vline 
WA_FKKCOLLPAYM_STR-ACPTM sy-vline      INTO ld_text SEPARATED BY SPACE.

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