ABAP Select data from SAP table FMKF_S_LINE_VAL into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM FMKF_S_LINE_VAL
*  INTO TABLE @DATA(IT_FMKF_S_LINE_VAL2).
*--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_FMKF_S_LINE_VAL INDEX 1 INTO DATA(WA_FMKF_S_LINE_VAL2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<FMKF_S_LINE_VAL>-KF_EVAL = 1.
<FMKF_S_LINE_VAL>-REF_KF = 1.
<FMKF_S_LINE_VAL>-DIM_AGGR = 1.
<FMKF_S_LINE_VAL>-FUND = 1.
<FMKF_S_LINE_VAL>-BUDGET_PD = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_FMKF_S_LINE_VAL-FUNDSCTR, sy-vline,
  WA_FMKF_S_LINE_VAL-CMMTITEM, sy-vline,
  WA_FMKF_S_LINE_VAL-FUNCAREA, sy-vline,
  WA_FMKF_S_LINE_VAL-GRANT_NBR, sy-vline,
  WA_FMKF_S_LINE_VAL-MEASURE, sy-vline,
  WA_FMKF_S_LINE_VAL-USERDIM, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_FMKF_S_LINE_VAL 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_FMKF_S_LINE_VAL 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_FMKF_S_LINE_VAL INTO WA_FMKF_S_LINE_VAL.


*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 FMCIL, internal->external for field CMMTITEM
CALL FUNCTION 'CONVERSION_EXIT_FMCIL_OUTPUT'
  EXPORTING
    input =                      WA_FMKF_S_LINE_VAL-CMMTITEM
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FMKF_S_LINE_VAL-CMMTITEM.
WRITE:/ 'New Value:', ld_input.

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

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

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

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

*Conversion exit ALPHA, internal->external for field BUDCAT
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_FMKF_S_LINE_VAL-BUDCAT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FMKF_S_LINE_VAL-BUDCAT.
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_FMKF_S_LINE_VAL_STR, 
KF_EVAL TYPE STRING,
REF_KF TYPE STRING,
DIM_AGGR TYPE STRING,
FUND TYPE STRING,
BUDGET_PD TYPE STRING,
FUNDSCTR TYPE STRING,
CMMTITEM TYPE STRING,
FUNCAREA TYPE STRING,
GRANT_NBR TYPE STRING,
MEASURE TYPE STRING,
USERDIM TYPE STRING,
CMMTITEM_CAT TYPE STRING,
INPUT_USE TYPE STRING,
DB_USE TYPE STRING,
NO_EVALUATION TYPE STRING,
FM_AREA TYPE STRING,
ADDRESS TYPE STRING,
FUND TYPE STRING,
FUNDSCTR TYPE STRING,
CMMTITEM TYPE STRING,
FUNCAREA TYPE STRING,
GRANT_NBR TYPE STRING,
MEASURE TYPE STRING,
USERDIM TYPE STRING,
BUDGET_PD TYPE STRING,
VERSION TYPE STRING,
FISCYEAR TYPE STRING,
CEFFYEAR TYPE STRING,
BUDCAT TYPE STRING,
VALTYPE TYPE STRING,
WFSTATE TYPE STRING,
PROCESS TYPE STRING,
BUDTYPE TYPE STRING,
LINENB TYPE STRING,
FLG_UNDO TYPE STRING,
CTEM_CATEGORY TYPE STRING,
TVAL TYPE STRING,
LVAL TYPE STRING,END OF T_EKKO_STR.
DATA: WA_FMKF_S_LINE_VAL_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_FMKF_S_LINE_VAL_STR-KF_EVAL sy-vline 
WA_FMKF_S_LINE_VAL_STR-REF_KF sy-vline 
WA_FMKF_S_LINE_VAL_STR-DIM_AGGR sy-vline 
WA_FMKF_S_LINE_VAL_STR-FUND sy-vline 
WA_FMKF_S_LINE_VAL_STR-BUDGET_PD sy-vline 
WA_FMKF_S_LINE_VAL_STR-FUNDSCTR sy-vline 
WA_FMKF_S_LINE_VAL_STR-CMMTITEM sy-vline 
WA_FMKF_S_LINE_VAL_STR-FUNCAREA sy-vline 
WA_FMKF_S_LINE_VAL_STR-GRANT_NBR sy-vline 
WA_FMKF_S_LINE_VAL_STR-MEASURE sy-vline 
WA_FMKF_S_LINE_VAL_STR-USERDIM sy-vline 
WA_FMKF_S_LINE_VAL_STR-CMMTITEM_CAT sy-vline 
WA_FMKF_S_LINE_VAL_STR-INPUT_USE sy-vline 
WA_FMKF_S_LINE_VAL_STR-DB_USE sy-vline 
WA_FMKF_S_LINE_VAL_STR-NO_EVALUATION sy-vline 
WA_FMKF_S_LINE_VAL_STR-FM_AREA sy-vline 
WA_FMKF_S_LINE_VAL_STR-ADDRESS sy-vline 
WA_FMKF_S_LINE_VAL_STR-FUND sy-vline 
WA_FMKF_S_LINE_VAL_STR-FUNDSCTR sy-vline 
WA_FMKF_S_LINE_VAL_STR-CMMTITEM sy-vline 
WA_FMKF_S_LINE_VAL_STR-FUNCAREA sy-vline 
WA_FMKF_S_LINE_VAL_STR-GRANT_NBR sy-vline 
WA_FMKF_S_LINE_VAL_STR-MEASURE sy-vline 
WA_FMKF_S_LINE_VAL_STR-USERDIM sy-vline 
WA_FMKF_S_LINE_VAL_STR-BUDGET_PD sy-vline 
WA_FMKF_S_LINE_VAL_STR-VERSION sy-vline 
WA_FMKF_S_LINE_VAL_STR-FISCYEAR sy-vline 
WA_FMKF_S_LINE_VAL_STR-CEFFYEAR sy-vline 
WA_FMKF_S_LINE_VAL_STR-BUDCAT sy-vline 
WA_FMKF_S_LINE_VAL_STR-VALTYPE sy-vline 
WA_FMKF_S_LINE_VAL_STR-WFSTATE sy-vline 
WA_FMKF_S_LINE_VAL_STR-PROCESS sy-vline 
WA_FMKF_S_LINE_VAL_STR-BUDTYPE sy-vline 
WA_FMKF_S_LINE_VAL_STR-LINENB sy-vline 
WA_FMKF_S_LINE_VAL_STR-FLG_UNDO sy-vline 
WA_FMKF_S_LINE_VAL_STR-CTEM_CATEGORY sy-vline 
WA_FMKF_S_LINE_VAL_STR-TVAL sy-vline 
WA_FMKF_S_LINE_VAL_STR-LVAL sy-vline      INTO ld_text SEPARATED BY SPACE.

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