ABAP Select data from SAP table FKKML_CASHAPP_MDATA_EXTRACT into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM FKKML_CASHAPP_MDATA_EXTRACT
*  INTO TABLE @DATA(IT_FKKML_CASHAPP_MDATA_EXTRACT2).
*--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_FKKML_CASHAPP_MDATA_EXTRACT INDEX 1 INTO DATA(WA_FKKML_CASHAPP_MDATA_EXTRACT2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<FKKML_CASHAPP_MDATA_EXTRACT>-BUSINESSPARTNER = 1.
<FKKML_CASHAPP_MDATA_EXTRACT>-CONTRACTACCOUNT = 1.
<FKKML_CASHAPP_MDATA_EXTRACT>-CACONTRACT = 1.
<FKKML_CASHAPP_MDATA_EXTRACT>-CASUBAPPLICATION = 1.
<FKKML_CASHAPP_MDATA_EXTRACT>-BUSINESSPARTNERIDBYEXTSYSTEM = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_FKKML_CASHAPP_MDATA_EXTRACT-CONTRACTACCOUNTEXTREFERENCE, sy-vline,
  WA_FKKML_CASHAPP_MDATA_EXTRACT-BUSINESSPARTNERFULLNAME, sy-vline,
  WA_FKKML_CASHAPP_MDATA_EXTRACT-CATECHNICALRESOURCEID, sy-vline,
  WA_FKKML_CASHAPP_MDATA_EXTRACT-PARTNERBANKCOUNTRY, sy-vline,
  WA_FKKML_CASHAPP_MDATA_EXTRACT-PARTNERBANK, sy-vline,
  WA_FKKML_CASHAPP_MDATA_EXTRACT-PARTNERBANKACCOUNT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_FKKML_CASHAPP_MDATA_EXTRACT 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_FKKML_CASHAPP_MDATA_EXTRACT 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_FKKML_CASHAPP_MDATA_EXTRACT INTO WA_FKKML_CASHAPP_MDATA_EXTRACT.


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

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

*Conversion exit ALPHA, internal->external for field CACONTRACT
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_FKKML_CASHAPP_MDATA_EXTRACT-CACONTRACT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FKKML_CASHAPP_MDATA_EXTRACT-CACONTRACT.
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_FKKML_CASHAPP_MDATA_EXTRACT_STR, 
BUSINESSPARTNER TYPE STRING,
CONTRACTACCOUNT TYPE STRING,
CACONTRACT TYPE STRING,
CASUBAPPLICATION TYPE STRING,
BUSINESSPARTNERIDBYEXTSYSTEM TYPE STRING,
CONTRACTACCOUNTEXTREFERENCE TYPE STRING,
BUSINESSPARTNERFULLNAME TYPE STRING,
CATECHNICALRESOURCEID TYPE STRING,
PARTNERBANKCOUNTRY TYPE STRING,
PARTNERBANK TYPE STRING,
PARTNERBANKACCOUNT TYPE STRING,
BANKACCOUNTHOLDERNAME TYPE STRING,
PARTNERBANKIBAN TYPE STRING,END OF T_EKKO_STR.
DATA: WA_FKKML_CASHAPP_MDATA_EXTRACT_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_FKKML_CASHAPP_MDATA_EXTRACT_STR-BUSINESSPARTNER sy-vline 
WA_FKKML_CASHAPP_MDATA_EXTRACT_STR-CONTRACTACCOUNT sy-vline 
WA_FKKML_CASHAPP_MDATA_EXTRACT_STR-CACONTRACT sy-vline 
WA_FKKML_CASHAPP_MDATA_EXTRACT_STR-CASUBAPPLICATION sy-vline 
WA_FKKML_CASHAPP_MDATA_EXTRACT_STR-BUSINESSPARTNERIDBYEXTSYSTEM sy-vline 
WA_FKKML_CASHAPP_MDATA_EXTRACT_STR-CONTRACTACCOUNTEXTREFERENCE sy-vline 
WA_FKKML_CASHAPP_MDATA_EXTRACT_STR-BUSINESSPARTNERFULLNAME sy-vline 
WA_FKKML_CASHAPP_MDATA_EXTRACT_STR-CATECHNICALRESOURCEID sy-vline 
WA_FKKML_CASHAPP_MDATA_EXTRACT_STR-PARTNERBANKCOUNTRY sy-vline 
WA_FKKML_CASHAPP_MDATA_EXTRACT_STR-PARTNERBANK sy-vline 
WA_FKKML_CASHAPP_MDATA_EXTRACT_STR-PARTNERBANKACCOUNT sy-vline 
WA_FKKML_CASHAPP_MDATA_EXTRACT_STR-BANKACCOUNTHOLDERNAME sy-vline 
WA_FKKML_CASHAPP_MDATA_EXTRACT_STR-PARTNERBANKIBAN sy-vline      INTO ld_text SEPARATED BY SPACE.

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