ABAP Select data from SAP table CMAC_ISRFEEX into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CMAC_ISRFEEX
*  INTO TABLE @DATA(IT_CMAC_ISRFEEX2).
*--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_CMAC_ISRFEEX INDEX 1 INTO DATA(WA_CMAC_ISRFEEX2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<CMAC_ISRFEEX>-DOC_TYPE = 1.
<CMAC_ISRFEEX>-AMOUNT = 1.
<CMAC_ISRFEEX>-CURRENCY = 1.
<CMAC_ISRFEEX>-PYMET_BANK = 1.
<CMAC_ISRFEEX>-PYMET_CARD = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CMAC_ISRFEEX-DOC_DATE, sy-vline,
  WA_CMAC_ISRFEEX-POST_DATE, sy-vline,
  WA_CMAC_ISRFEEX-NET_DATE, sy-vline,
  WA_CMAC_ISRFEEX-DISC_DUE, sy-vline,
  WA_CMAC_ISRFEEX-DISC_RATE, sy-vline,
  WA_CMAC_ISRFEEX-TRANS_DATE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CMAC_ISRFEEX 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_CMAC_ISRFEEX 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_CMAC_ISRFEEX INTO WA_CMAC_ISRFEEX.


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

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

*Conversion exit ABPSP, internal->external for field WBS_ELEM
CALL FUNCTION 'CONVERSION_EXIT_ABPSP_OUTPUT'
  EXPORTING
    input =                      WA_CMAC_ISRFEEX-WBS_ELEM
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CMAC_ISRFEEX-WBS_ELEM.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field ORDERID
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_CMAC_ISRFEEX-ORDERID
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CMAC_ISRFEEX-ORDERID.
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_CMAC_ISRFEEX_STR, 
DOC_TYPE TYPE STRING,
AMOUNT TYPE STRING,
CURRENCY TYPE STRING,
PYMET_BANK TYPE STRING,
PYMET_CARD TYPE STRING,
DOC_DATE TYPE STRING,
POST_DATE TYPE STRING,
NET_DATE TYPE STRING,
DISC_DUE TYPE STRING,
DISC_RATE TYPE STRING,
TRANS_DATE TYPE STRING,
MAIN_TRANS TYPE STRING,
SUB_TRANS TYPE STRING,
PSOBTYP TYPE STRING,
STAT_KEY TYPE STRING,
TEXT TYPE STRING,
GL_ACCOUNT TYPE STRING,
COST_CTR TYPE STRING,
WBS_ELEM TYPE STRING,
ORDERID TYPE STRING,
FUNDS_CTR TYPE STRING,
FUND TYPE STRING,
FUNC_AREA TYPE STRING,
FNAUT TYPE STRING,
RFCAUT TYPE STRING,
MERCH TYPE STRING,
ACADEMICYR TYPE STRING,
SESSIONID TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CMAC_ISRFEEX_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_CMAC_ISRFEEX_STR-DOC_TYPE sy-vline 
WA_CMAC_ISRFEEX_STR-AMOUNT sy-vline 
WA_CMAC_ISRFEEX_STR-CURRENCY sy-vline 
WA_CMAC_ISRFEEX_STR-PYMET_BANK sy-vline 
WA_CMAC_ISRFEEX_STR-PYMET_CARD sy-vline 
WA_CMAC_ISRFEEX_STR-DOC_DATE sy-vline 
WA_CMAC_ISRFEEX_STR-POST_DATE sy-vline 
WA_CMAC_ISRFEEX_STR-NET_DATE sy-vline 
WA_CMAC_ISRFEEX_STR-DISC_DUE sy-vline 
WA_CMAC_ISRFEEX_STR-DISC_RATE sy-vline 
WA_CMAC_ISRFEEX_STR-TRANS_DATE sy-vline 
WA_CMAC_ISRFEEX_STR-MAIN_TRANS sy-vline 
WA_CMAC_ISRFEEX_STR-SUB_TRANS sy-vline 
WA_CMAC_ISRFEEX_STR-PSOBTYP sy-vline 
WA_CMAC_ISRFEEX_STR-STAT_KEY sy-vline 
WA_CMAC_ISRFEEX_STR-TEXT sy-vline 
WA_CMAC_ISRFEEX_STR-GL_ACCOUNT sy-vline 
WA_CMAC_ISRFEEX_STR-COST_CTR sy-vline 
WA_CMAC_ISRFEEX_STR-WBS_ELEM sy-vline 
WA_CMAC_ISRFEEX_STR-ORDERID sy-vline 
WA_CMAC_ISRFEEX_STR-FUNDS_CTR sy-vline 
WA_CMAC_ISRFEEX_STR-FUND sy-vline 
WA_CMAC_ISRFEEX_STR-FUNC_AREA sy-vline 
WA_CMAC_ISRFEEX_STR-FNAUT sy-vline 
WA_CMAC_ISRFEEX_STR-RFCAUT sy-vline 
WA_CMAC_ISRFEEX_STR-MERCH sy-vline 
WA_CMAC_ISRFEEX_STR-ACADEMICYR sy-vline 
WA_CMAC_ISRFEEX_STR-SESSIONID sy-vline      INTO ld_text SEPARATED BY SPACE.

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