ABAP Select data from SAP table FMKF_TERM into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP FMKF_TERM 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_TERM. 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_TERM 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_TERM TYPE STANDARD TABLE OF FMKF_TERM,
      WA_FMKF_TERM TYPE FMKF_TERM,
      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_TERM> TYPE FMKF_TERM.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM FMKF_TERM
*  INTO TABLE @DATA(IT_FMKF_TERM2).
*--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_TERM INDEX 1 INTO DATA(WA_FMKF_TERM2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<FMKF_TERM>-CLIENT = 1.
<FMKF_TERM>-KEYFIG = 1.
<FMKF_TERM>-DATASOURCE = 1.
<FMKF_TERM>-TERMNUM = 1.
<FMKF_TERM>-SIGN = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_FMKF_TERM-VERSION, sy-vline,
  WA_FMKF_TERM-BUDCAT, sy-vline,
  WA_FMKF_TERM-VALTYPE, sy-vline,
  WA_FMKF_TERM-PROCESS, sy-vline,
  WA_FMKF_TERM-BUDTYPE, sy-vline,
  WA_FMKF_TERM-WFSTATE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_FMKF_TERM 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_TERM 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_TERM INTO WA_FMKF_TERM.


*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 VERSION
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_FMKF_TERM-VERSION
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FMKF_TERM-VERSION.
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_TERM_STR, 
CLIENT TYPE STRING,
KEYFIG TYPE STRING,
DATASOURCE TYPE STRING,
TERMNUM TYPE STRING,
SIGN TYPE STRING,
VERSION TYPE STRING,
BUDCAT TYPE STRING,
VALTYPE TYPE STRING,
PROCESS TYPE STRING,
BUDTYPE TYPE STRING,
WFSTATE TYPE STRING,
FISCYEAR TYPE STRING,
CEFFYEAR TYPE STRING,
CTEM_CATEGORY TYPE STRING,
PERIOD TYPE STRING,
PERIOD_FROM TYPE STRING,
PERIOD_TO TYPE STRING,END OF T_EKKO_STR.
DATA: WA_FMKF_TERM_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_TERM_STR-CLIENT sy-vline 
WA_FMKF_TERM_STR-KEYFIG sy-vline 
WA_FMKF_TERM_STR-DATASOURCE sy-vline 
WA_FMKF_TERM_STR-TERMNUM sy-vline 
WA_FMKF_TERM_STR-SIGN sy-vline 
WA_FMKF_TERM_STR-VERSION sy-vline 
WA_FMKF_TERM_STR-BUDCAT sy-vline 
WA_FMKF_TERM_STR-VALTYPE sy-vline 
WA_FMKF_TERM_STR-PROCESS sy-vline 
WA_FMKF_TERM_STR-BUDTYPE sy-vline 
WA_FMKF_TERM_STR-WFSTATE sy-vline 
WA_FMKF_TERM_STR-FISCYEAR sy-vline 
WA_FMKF_TERM_STR-CEFFYEAR sy-vline 
WA_FMKF_TERM_STR-CTEM_CATEGORY sy-vline 
WA_FMKF_TERM_STR-PERIOD sy-vline 
WA_FMKF_TERM_STR-PERIOD_FROM sy-vline 
WA_FMKF_TERM_STR-PERIOD_TO sy-vline      INTO ld_text SEPARATED BY SPACE.

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