ABAP Select data from SAP table FKKSK_VATLED into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM FKKSK_VATLED
*  INTO TABLE @DATA(IT_FKKSK_VATLED2).
*--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_FKKSK_VATLED INDEX 1 INTO DATA(WA_FKKSK_VATLED2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<FKKSK_VATLED>-MANDT = 1.
<FKKSK_VATLED>-BUKRS = 1.
<FKKSK_VATLED>-GJAHR = 1.
<FKKSK_VATLED>-MONAT = 1.
<FKKSK_VATLED>-REP_RUN = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_FKKSK_VATLED-SEQ_NUM, sy-vline,
  WA_FKKSK_VATLED-OPBEL, sy-vline,
  WA_FKKSK_VATLED-OPUPK, sy-vline,
  WA_FKKSK_VATLED-GPART, sy-vline,
  WA_FKKSK_VATLED-VINFO, sy-vline,
  WA_FKKSK_VATLED-TZAHL, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_FKKSK_VATLED 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_FKKSK_VATLED 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_FKKSK_VATLED INTO WA_FKKSK_VATLED.


*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 GJAHR, internal->external for field GJAHR
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_FKKSK_VATLED-GJAHR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FKKSK_VATLED-GJAHR.
WRITE:/ 'New Value:', ld_input.

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

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

*Conversion exit SKVLS, internal->external for field REP_SECT
CALL FUNCTION 'CONVERSION_EXIT_SKVLS_OUTPUT'
  EXPORTING
    input =                      WA_FKKSK_VATLED-REP_SECT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FKKSK_VATLED-REP_SECT.
WRITE:/ 'New Value:', ld_input.

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

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

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

*Conversion exit ALPHA, internal->external for field DREFNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_FKKSK_VATLED-DREFNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FKKSK_VATLED-DREFNR.
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_FKKSK_VATLED_STR, 
MANDT TYPE STRING,
BUKRS TYPE STRING,
GJAHR TYPE STRING,
MONAT TYPE STRING,
REP_RUN TYPE STRING,
SEQ_NUM TYPE STRING,
OPBEL TYPE STRING,
OPUPK TYPE STRING,
GPART TYPE STRING,
VINFO TYPE STRING,
TZAHL TYPE STRING,
REP_SECT TYPE STRING,
VMDAT TYPE STRING,
VAT_NUM TYPE STRING,
NATPERS TYPE STRING,
XBLNR TYPE STRING,
SBASH TYPE STRING,
SBETH TYPE STRING,
HWAER TYPE STRING,
SBASW TYPE STRING,
SBETW TYPE STRING,
TWAER TYPE STRING,
MWSKZ TYPE STRING,
STPRZ TYPE STRING,
AMND_CODE TYPE STRING,
CN_CODE TYPE STRING,
PROD_TYPE TYPE STRING,
QUANTITY TYPE STRING,
BASE_UNIT TYPE STRING,
CORR_XBLNR TYPE STRING,
CORR_OPBEL TYPE STRING,
DREFNR TYPE STRING,
BAD_DEBT_RELIEF TYPE STRING,END OF T_EKKO_STR.
DATA: WA_FKKSK_VATLED_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_FKKSK_VATLED_STR-MANDT sy-vline 
WA_FKKSK_VATLED_STR-BUKRS sy-vline 
WA_FKKSK_VATLED_STR-GJAHR sy-vline 
WA_FKKSK_VATLED_STR-MONAT sy-vline 
WA_FKKSK_VATLED_STR-REP_RUN sy-vline 
WA_FKKSK_VATLED_STR-SEQ_NUM sy-vline 
WA_FKKSK_VATLED_STR-OPBEL sy-vline 
WA_FKKSK_VATLED_STR-OPUPK sy-vline 
WA_FKKSK_VATLED_STR-GPART sy-vline 
WA_FKKSK_VATLED_STR-VINFO sy-vline 
WA_FKKSK_VATLED_STR-TZAHL sy-vline 
WA_FKKSK_VATLED_STR-REP_SECT sy-vline 
WA_FKKSK_VATLED_STR-VMDAT sy-vline 
WA_FKKSK_VATLED_STR-VAT_NUM sy-vline 
WA_FKKSK_VATLED_STR-NATPERS sy-vline 
WA_FKKSK_VATLED_STR-XBLNR sy-vline 
WA_FKKSK_VATLED_STR-SBASH sy-vline 
WA_FKKSK_VATLED_STR-SBETH sy-vline 
WA_FKKSK_VATLED_STR-HWAER sy-vline 
WA_FKKSK_VATLED_STR-SBASW sy-vline 
WA_FKKSK_VATLED_STR-SBETW sy-vline 
WA_FKKSK_VATLED_STR-TWAER sy-vline 
WA_FKKSK_VATLED_STR-MWSKZ sy-vline 
WA_FKKSK_VATLED_STR-STPRZ sy-vline 
WA_FKKSK_VATLED_STR-AMND_CODE sy-vline 
WA_FKKSK_VATLED_STR-CN_CODE sy-vline 
WA_FKKSK_VATLED_STR-PROD_TYPE sy-vline 
WA_FKKSK_VATLED_STR-QUANTITY sy-vline 
WA_FKKSK_VATLED_STR-BASE_UNIT sy-vline 
WA_FKKSK_VATLED_STR-CORR_XBLNR sy-vline 
WA_FKKSK_VATLED_STR-CORR_OPBEL sy-vline 
WA_FKKSK_VATLED_STR-DREFNR sy-vline 
WA_FKKSK_VATLED_STR-BAD_DEBT_RELIEF sy-vline      INTO ld_text SEPARATED BY SPACE.

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