ABAP Select data from SAP table CMMF_SVKOET into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CMMF_SVKOET
*  INTO TABLE @DATA(IT_CMMF_SVKOET2).
*--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_CMMF_SVKOET INDEX 1 INTO DATA(WA_CMMF_SVKOET2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<CMMF_SVKOET>-MANDT = 1.
<CMMF_SVKOET>-VERSION_GUID = 1.
<CMMF_SVKOET>-NGIDNR = 1.
<CMMF_SVKOET>-AGGREGRULE = 1.
<CMMF_SVKOET>-RMBEWREG = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CMMF_SVKOET-GFORM, sy-vline,
  WA_CMMF_SVKOET-GDETAIL, sy-vline,
  WA_CMMF_SVKOET-KATEKZ, sy-vline,
  WA_CMMF_SVKOET-AGGRKZ, sy-vline,
  WA_CMMF_SVKOET-DBLFZ, sy-vline,
  WA_CMMF_SVKOET-DELFZ, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CMMF_SVKOET 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_CMMF_SVKOET 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_CMMF_SVKOET INTO WA_CMMF_SVKOET.


*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 RANL
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_CMMF_SVKOET-RANL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CMMF_SVKOET-RANL.
WRITE:/ 'New Value:', ld_input.

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

*Conversion exit CUNIT, internal->external for field CTY_UOM
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_CMMF_SVKOET-CTY_UOM
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CMMF_SVKOET-CTY_UOM.
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_CMMF_SVKOET_STR, 
MANDT TYPE STRING,
VERSION_GUID TYPE STRING,
NGIDNR TYPE STRING,
AGGREGRULE TYPE STRING,
RMBEWREG TYPE STRING,
GFORM TYPE STRING,
GDETAIL TYPE STRING,
KATEKZ TYPE STRING,
AGGRKZ TYPE STRING,
DBLFZ TYPE STRING,
DELFZ TYPE STRING,
SFGTYP TYPE STRING,
SNOTTYPE TYPE STRING,
SNOMWHR TYPE STRING,
BNOMINAL TYPE STRING,
ASTUECK TYPE STRING,
WGSCHFT1 TYPE STRING,
WGSCHFT2 TYPE STRING,
BNOMI1 TYPE STRING,
BNOMI2 TYPE STRING,
BSALDO TYPE STRING,
DEFSZ TYPE STRING,
RANL TYPE STRING,
RHANDPL TYPE STRING,
IDX TYPE STRING,
IDXVAL TYPE STRING,
BPIDX TYPE STRING,
SPIDX TYPE STRING,
KKURSWP TYPE STRING,
DDEKSE TYPE STRING,
SSHLNG TYPE STRING,
SEZWHR TYPE STRING,
BEZWHR TYPE STRING,
RIDEXTRTEXT TYPE STRING,
BETICK TYPE STRING,
BWTICK TYPE STRING,
URANL TYPE STRING,
CTY_ID TYPE STRING,
QUOTSRC TYPE STRING,
BETICK_SEC TYPE STRING,
BWTICK_SEC TYPE STRING,
WWTICK TYPE STRING,
PPTICK TYPE STRING,
PITICK TYPE STRING,
CTY_QUANTITY TYPE STRING,
CTY_UOM TYPE STRING,
CSPREAD TYPE STRING,
CTY_ID2 TYPE STRING,
CSPREAD_FWD TYPE STRING,
EXP_APPR_CAT TYPE STRING,
CONTRACT_VALUE TYPE STRING,
CONTRACT_VALUE_CURR TYPE STRING,
FORWARD_DATE TYPE STRING,
BETICK_CTY_CUNIT TYPE STRING,
CURRENT_ACTIVITY_CATEGORY TYPE STRING,
APKENNZ TYPE STRING,
LEAD_FGET TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CMMF_SVKOET_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_CMMF_SVKOET_STR-MANDT sy-vline 
WA_CMMF_SVKOET_STR-VERSION_GUID sy-vline 
WA_CMMF_SVKOET_STR-NGIDNR sy-vline 
WA_CMMF_SVKOET_STR-AGGREGRULE sy-vline 
WA_CMMF_SVKOET_STR-RMBEWREG sy-vline 
WA_CMMF_SVKOET_STR-GFORM sy-vline 
WA_CMMF_SVKOET_STR-GDETAIL sy-vline 
WA_CMMF_SVKOET_STR-KATEKZ sy-vline 
WA_CMMF_SVKOET_STR-AGGRKZ sy-vline 
WA_CMMF_SVKOET_STR-DBLFZ sy-vline 
WA_CMMF_SVKOET_STR-DELFZ sy-vline 
WA_CMMF_SVKOET_STR-SFGTYP sy-vline 
WA_CMMF_SVKOET_STR-SNOTTYPE sy-vline 
WA_CMMF_SVKOET_STR-SNOMWHR sy-vline 
WA_CMMF_SVKOET_STR-BNOMINAL sy-vline 
WA_CMMF_SVKOET_STR-ASTUECK sy-vline 
WA_CMMF_SVKOET_STR-WGSCHFT1 sy-vline 
WA_CMMF_SVKOET_STR-WGSCHFT2 sy-vline 
WA_CMMF_SVKOET_STR-BNOMI1 sy-vline 
WA_CMMF_SVKOET_STR-BNOMI2 sy-vline 
WA_CMMF_SVKOET_STR-BSALDO sy-vline 
WA_CMMF_SVKOET_STR-DEFSZ sy-vline 
WA_CMMF_SVKOET_STR-RANL sy-vline 
WA_CMMF_SVKOET_STR-RHANDPL sy-vline 
WA_CMMF_SVKOET_STR-IDX sy-vline 
WA_CMMF_SVKOET_STR-IDXVAL sy-vline 
WA_CMMF_SVKOET_STR-BPIDX sy-vline 
WA_CMMF_SVKOET_STR-SPIDX sy-vline 
WA_CMMF_SVKOET_STR-KKURSWP sy-vline 
WA_CMMF_SVKOET_STR-DDEKSE sy-vline 
WA_CMMF_SVKOET_STR-SSHLNG sy-vline 
WA_CMMF_SVKOET_STR-SEZWHR sy-vline 
WA_CMMF_SVKOET_STR-BEZWHR sy-vline 
WA_CMMF_SVKOET_STR-RIDEXTRTEXT sy-vline 
WA_CMMF_SVKOET_STR-BETICK sy-vline 
WA_CMMF_SVKOET_STR-BWTICK sy-vline 
WA_CMMF_SVKOET_STR-URANL sy-vline 
WA_CMMF_SVKOET_STR-CTY_ID sy-vline 
WA_CMMF_SVKOET_STR-QUOTSRC sy-vline 
WA_CMMF_SVKOET_STR-BETICK_SEC sy-vline 
WA_CMMF_SVKOET_STR-BWTICK_SEC sy-vline 
WA_CMMF_SVKOET_STR-WWTICK sy-vline 
WA_CMMF_SVKOET_STR-PPTICK sy-vline 
WA_CMMF_SVKOET_STR-PITICK sy-vline 
WA_CMMF_SVKOET_STR-CTY_QUANTITY sy-vline 
WA_CMMF_SVKOET_STR-CTY_UOM sy-vline 
WA_CMMF_SVKOET_STR-CSPREAD sy-vline 
WA_CMMF_SVKOET_STR-CTY_ID2 sy-vline 
WA_CMMF_SVKOET_STR-CSPREAD_FWD sy-vline 
WA_CMMF_SVKOET_STR-EXP_APPR_CAT sy-vline 
WA_CMMF_SVKOET_STR-CONTRACT_VALUE sy-vline 
WA_CMMF_SVKOET_STR-CONTRACT_VALUE_CURR sy-vline 
WA_CMMF_SVKOET_STR-FORWARD_DATE sy-vline 
WA_CMMF_SVKOET_STR-BETICK_CTY_CUNIT sy-vline 
WA_CMMF_SVKOET_STR-CURRENT_ACTIVITY_CATEGORY sy-vline 
WA_CMMF_SVKOET_STR-APKENNZ sy-vline 
WA_CMMF_SVKOET_STR-LEAD_FGET sy-vline      INTO ld_text SEPARATED BY SPACE.

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