ABAP Select data from SAP table FKKEPOSV into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM FKKEPOSV
*  INTO TABLE @DATA(IT_FKKEPOSV2).
*--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_FKKEPOSV INDEX 1 INTO DATA(WA_FKKEPOSV2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<FKKEPOSV>-XARCH = 1.
<FKKEPOSV>-XAUTH = 1.
<FKKEPOSV>-XHELL = 1.
<FKKEPOSV>-XZAHL = 1.
<FKKEPOSV>-XZCLR = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_FKKEPOSV-XNDSP, sy-vline,
  WA_FKKEPOSV-ACTIV, sy-vline,
  WA_FKKEPOSV-ORISO, sy-vline,
  WA_FKKEPOSV-ORISP, sy-vline,
  WA_FKKEPOSV-X1211, sy-vline,
  WA_FKKEPOSV-ORINO, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_FKKEPOSV 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_FKKEPOSV 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_FKKEPOSV INTO WA_FKKEPOSV.


*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_FKKEPOSV_STR, 
XARCH TYPE STRING,
XAUTH TYPE STRING,
XHELL TYPE STRING,
XZAHL TYPE STRING,
XZCLR TYPE STRING,
XNDSP TYPE STRING,
ACTIV TYPE STRING,
ORISO TYPE STRING,
ORISP TYPE STRING,
X1211 TYPE STRING,
ORINO TYPE STRING,
ORINO_REF TYPE STRING,
X1205 TYPE STRING,
XMBEL TYPE STRING,
XPPPO TYPE STRING,
XPLPO TYPE STRING,
XPROV TYPE STRING,END OF T_EKKO_STR.
DATA: WA_FKKEPOSV_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_FKKEPOSV_STR-XARCH sy-vline 
WA_FKKEPOSV_STR-XAUTH sy-vline 
WA_FKKEPOSV_STR-XHELL sy-vline 
WA_FKKEPOSV_STR-XZAHL sy-vline 
WA_FKKEPOSV_STR-XZCLR sy-vline 
WA_FKKEPOSV_STR-XNDSP sy-vline 
WA_FKKEPOSV_STR-ACTIV sy-vline 
WA_FKKEPOSV_STR-ORISO sy-vline 
WA_FKKEPOSV_STR-ORISP sy-vline 
WA_FKKEPOSV_STR-X1211 sy-vline 
WA_FKKEPOSV_STR-ORINO sy-vline 
WA_FKKEPOSV_STR-ORINO_REF sy-vline 
WA_FKKEPOSV_STR-X1205 sy-vline 
WA_FKKEPOSV_STR-XMBEL sy-vline 
WA_FKKEPOSV_STR-XPPPO sy-vline 
WA_FKKEPOSV_STR-XPLPO sy-vline 
WA_FKKEPOSV_STR-XPROV sy-vline      INTO ld_text SEPARATED BY SPACE.

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