ABAP Select data from SAP table FMKU_S_SUBSTITUTE_SOURCE into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM FMKU_S_SUBSTITUTE_SOURCE
*  INTO TABLE @DATA(IT_FMKU_S_SUBSTITUTE_SOURCE2).
*--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_FMKU_S_SUBSTITUTE_SOURCE INDEX 1 INTO DATA(WA_FMKU_S_SUBSTITUTE_SOURCE2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<FMKU_S_SUBSTITUTE_SOURCE>-FM_AREA = 1.
<FMKU_S_SUBSTITUTE_SOURCE>-DOCTYPE = 1.
<FMKU_S_SUBSTITUTE_SOURCE>-FUND = 1.
<FMKU_S_SUBSTITUTE_SOURCE>-FUNDSCTR = 1.
<FMKU_S_SUBSTITUTE_SOURCE>-CMMTITEM = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_FMKU_S_SUBSTITUTE_SOURCE-FUNCAREA, sy-vline,
  WA_FMKU_S_SUBSTITUTE_SOURCE-GRANT_NBR, sy-vline,
  WA_FMKU_S_SUBSTITUTE_SOURCE-MEASURE, sy-vline,
  WA_FMKU_S_SUBSTITUTE_SOURCE-BUDGET_PD, sy-vline,
  WA_FMKU_S_SUBSTITUTE_SOURCE-USERDIM, sy-vline,
  WA_FMKU_S_SUBSTITUTE_SOURCE-BUDTYPE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_FMKU_S_SUBSTITUTE_SOURCE 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_FMKU_S_SUBSTITUTE_SOURCE 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_FMKU_S_SUBSTITUTE_SOURCE INTO WA_FMKU_S_SUBSTITUTE_SOURCE.


*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_FMKU_S_SUBSTITUTE_SOURCE-CMMTITEM
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FMKU_S_SUBSTITUTE_SOURCE-CMMTITEM.
WRITE:/ 'New Value:', ld_input.

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

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

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

*Conversion exit ALPHA, internal->external for field BUDCAT
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_FMKU_S_SUBSTITUTE_SOURCE-BUDCAT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FMKU_S_SUBSTITUTE_SOURCE-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_FMKU_S_SUBSTITUTE_SOURCE_STR, 
FM_AREA TYPE STRING,
DOCTYPE TYPE STRING,
FUND TYPE STRING,
FUNDSCTR TYPE STRING,
CMMTITEM TYPE STRING,
FUNCAREA TYPE STRING,
GRANT_NBR TYPE STRING,
MEASURE TYPE STRING,
BUDGET_PD TYPE STRING,
USERDIM TYPE STRING,
BUDTYPE TYPE STRING,
VALTYPE TYPE STRING,
VERSION TYPE STRING,
FISCYEAR TYPE STRING,
BUDCAT TYPE STRING,
PROCESS_UI TYPE STRING,
TECHORG TYPE STRING,
PROCESS TYPE STRING,
DUMMY_EXT TYPE STRING,
BGTSRC TYPE STRING,
BGTDTL TYPE STRING,
PAYTYP TYPE STRING,
PAYKID TYPE STRING,
PROCNO TYPE STRING,
FUNCTIONALAREASUBDIVISIONID TYPE STRING,
FUNCTIONALAREA1SUBDIVISION TYPE STRING,
FUNCTIONALAREA2SUBDIVISION TYPE STRING,
FUNCTIONALAREA3SUBDIVISION TYPE STRING,
COMMITMENTITEMSUBDIVISIONID TYPE STRING,
COMMITMENTITEM1SUBDIVISION TYPE STRING,
COMMITMENTITEM2SUBDIVISION TYPE STRING,
COMMITMENTITEM3SUBDIVISION TYPE STRING,
COMMITMENTITEM4SUBDIVISION TYPE STRING,
COMMITMENTITEM5SUBDIVISION TYPE STRING,
FUNDSCENTERSUBDIVISIONID TYPE STRING,
FUNDSCENTER1SUBDIVISION TYPE STRING,
FUNDSCENTER2SUBDIVISION TYPE STRING,
FUNDSCENTER3SUBDIVISION TYPE STRING,
FUNDSSUBDIVISIONID TYPE STRING,
FUNDS1SUBDIVISION TYPE STRING,
FUNDS2SUBDIVISION TYPE STRING,END OF T_EKKO_STR.
DATA: WA_FMKU_S_SUBSTITUTE_SOURCE_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_FMKU_S_SUBSTITUTE_SOURCE_STR-FM_AREA sy-vline 
WA_FMKU_S_SUBSTITUTE_SOURCE_STR-DOCTYPE sy-vline 
WA_FMKU_S_SUBSTITUTE_SOURCE_STR-FUND sy-vline 
WA_FMKU_S_SUBSTITUTE_SOURCE_STR-FUNDSCTR sy-vline 
WA_FMKU_S_SUBSTITUTE_SOURCE_STR-CMMTITEM sy-vline 
WA_FMKU_S_SUBSTITUTE_SOURCE_STR-FUNCAREA sy-vline 
WA_FMKU_S_SUBSTITUTE_SOURCE_STR-GRANT_NBR sy-vline 
WA_FMKU_S_SUBSTITUTE_SOURCE_STR-MEASURE sy-vline 
WA_FMKU_S_SUBSTITUTE_SOURCE_STR-BUDGET_PD sy-vline 
WA_FMKU_S_SUBSTITUTE_SOURCE_STR-USERDIM sy-vline 
WA_FMKU_S_SUBSTITUTE_SOURCE_STR-BUDTYPE sy-vline 
WA_FMKU_S_SUBSTITUTE_SOURCE_STR-VALTYPE sy-vline 
WA_FMKU_S_SUBSTITUTE_SOURCE_STR-VERSION sy-vline 
WA_FMKU_S_SUBSTITUTE_SOURCE_STR-FISCYEAR sy-vline 
WA_FMKU_S_SUBSTITUTE_SOURCE_STR-BUDCAT sy-vline 
WA_FMKU_S_SUBSTITUTE_SOURCE_STR-PROCESS_UI sy-vline 
WA_FMKU_S_SUBSTITUTE_SOURCE_STR-TECHORG sy-vline 
WA_FMKU_S_SUBSTITUTE_SOURCE_STR-PROCESS sy-vline 
WA_FMKU_S_SUBSTITUTE_SOURCE_STR-DUMMY_EXT sy-vline 
WA_FMKU_S_SUBSTITUTE_SOURCE_STR-BGTSRC sy-vline 
WA_FMKU_S_SUBSTITUTE_SOURCE_STR-BGTDTL sy-vline 
WA_FMKU_S_SUBSTITUTE_SOURCE_STR-PAYTYP sy-vline 
WA_FMKU_S_SUBSTITUTE_SOURCE_STR-PAYKID sy-vline 
WA_FMKU_S_SUBSTITUTE_SOURCE_STR-PROCNO sy-vline 
WA_FMKU_S_SUBSTITUTE_SOURCE_STR-FUNCTIONALAREASUBDIVISIONID sy-vline 
WA_FMKU_S_SUBSTITUTE_SOURCE_STR-FUNCTIONALAREA1SUBDIVISION sy-vline 
WA_FMKU_S_SUBSTITUTE_SOURCE_STR-FUNCTIONALAREA2SUBDIVISION sy-vline 
WA_FMKU_S_SUBSTITUTE_SOURCE_STR-FUNCTIONALAREA3SUBDIVISION sy-vline 
WA_FMKU_S_SUBSTITUTE_SOURCE_STR-COMMITMENTITEMSUBDIVISIONID sy-vline 
WA_FMKU_S_SUBSTITUTE_SOURCE_STR-COMMITMENTITEM1SUBDIVISION sy-vline 
WA_FMKU_S_SUBSTITUTE_SOURCE_STR-COMMITMENTITEM2SUBDIVISION sy-vline 
WA_FMKU_S_SUBSTITUTE_SOURCE_STR-COMMITMENTITEM3SUBDIVISION sy-vline 
WA_FMKU_S_SUBSTITUTE_SOURCE_STR-COMMITMENTITEM4SUBDIVISION sy-vline 
WA_FMKU_S_SUBSTITUTE_SOURCE_STR-COMMITMENTITEM5SUBDIVISION sy-vline 
WA_FMKU_S_SUBSTITUTE_SOURCE_STR-FUNDSCENTERSUBDIVISIONID sy-vline 
WA_FMKU_S_SUBSTITUTE_SOURCE_STR-FUNDSCENTER1SUBDIVISION sy-vline 
WA_FMKU_S_SUBSTITUTE_SOURCE_STR-FUNDSCENTER2SUBDIVISION sy-vline 
WA_FMKU_S_SUBSTITUTE_SOURCE_STR-FUNDSCENTER3SUBDIVISION sy-vline 
WA_FMKU_S_SUBSTITUTE_SOURCE_STR-FUNDSSUBDIVISIONID sy-vline 
WA_FMKU_S_SUBSTITUTE_SOURCE_STR-FUNDS1SUBDIVISION sy-vline 
WA_FMKU_S_SUBSTITUTE_SOURCE_STR-FUNDS2SUBDIVISION sy-vline      INTO ld_text SEPARATED BY SPACE.

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