ABAP Select data from SAP table FKKEPOSP2 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP FKKEPOSP2 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 FKKEPOSP2. 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 FKKEPOSP2 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_FKKEPOSP2 TYPE STANDARD TABLE OF FKKEPOSP2,
      WA_FKKEPOSP2 TYPE FKKEPOSP2,
      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: <FKKEPOSP2> TYPE FKKEPOSP2.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_FKKEPOSP2.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM FKKEPOSP2
  INTO TABLE IT_FKKEPOSP2.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM FKKEPOSP2
*  INTO TABLE @DATA(IT_FKKEPOSP22).
*--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_FKKEPOSP2 INDEX 1 INTO DATA(WA_FKKEPOSP22).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_FKKEPOSP2 ASSIGNING <FKKEPOSP2>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<FKKEPOSP2>-XAWOP = 1.
<FKKEPOSP2>-XAWAP = 1.
<FKKEPOSP2>-ANDPA = 1.
<FKKEPOSP2>-VARNR = 1.
<FKKEPOSP2>-XUSSE = 1.

ENDLOOP.

LOOP AT IT_FKKEPOSP2 INTO WA_FKKEPOSP2.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_FKKEPOSP2-STAKZ, sy-vline,
  WA_FKKEPOSP2-STAKA, sy-vline,
  WA_FKKEPOSP2-STAKB, sy-vline,
  WA_FKKEPOSP2-STAKG, sy-vline,
  WA_FKKEPOSP2-STAKP, sy-vline,
  WA_FKKEPOSP2-STAKR, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_FKKEPOSP2 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_FKKEPOSP2 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_FKKEPOSP2 INTO WA_FKKEPOSP2.


*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_FKKEPOSP2_STR, 
XAWOP TYPE STRING,
XAWAP TYPE STRING,
ANDPA TYPE STRING,
VARNR TYPE STRING,
XUSSE TYPE STRING,
STAKZ TYPE STRING,
STAKA TYPE STRING,
STAKB TYPE STRING,
STAKG TYPE STRING,
STAKP TYPE STRING,
STAKR TYPE STRING,
STAKS TYPE STRING,
STAKZ_Z TYPE STRING,
STAKNO TYPE STRING,
SZAHL TYPE STRING,
STAKH TYPE STRING,
STAKI TYPE STRING,
STAKJ TYPE STRING,END OF T_EKKO_STR.
DATA: WA_FKKEPOSP2_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_FKKEPOSP2_STR-XAWOP sy-vline 
WA_FKKEPOSP2_STR-XAWAP sy-vline 
WA_FKKEPOSP2_STR-ANDPA sy-vline 
WA_FKKEPOSP2_STR-VARNR sy-vline 
WA_FKKEPOSP2_STR-XUSSE sy-vline 
WA_FKKEPOSP2_STR-STAKZ sy-vline 
WA_FKKEPOSP2_STR-STAKA sy-vline 
WA_FKKEPOSP2_STR-STAKB sy-vline 
WA_FKKEPOSP2_STR-STAKG sy-vline 
WA_FKKEPOSP2_STR-STAKP sy-vline 
WA_FKKEPOSP2_STR-STAKR sy-vline 
WA_FKKEPOSP2_STR-STAKS sy-vline 
WA_FKKEPOSP2_STR-STAKZ_Z sy-vline 
WA_FKKEPOSP2_STR-STAKNO sy-vline 
WA_FKKEPOSP2_STR-SZAHL sy-vline 
WA_FKKEPOSP2_STR-STAKH sy-vline 
WA_FKKEPOSP2_STR-STAKI sy-vline 
WA_FKKEPOSP2_STR-STAKJ sy-vline      INTO ld_text SEPARATED BY SPACE.

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