ABAP Select data from SAP table CFMCI into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CFMCI
*  INTO TABLE @DATA(IT_CFMCI2).
*--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_CFMCI INDEX 1 INTO DATA(WA_CFMCI2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<CFMCI>-MANDT = 1.
<CFMCI>-FIKRS = 1.
<CFMCI>-GJAHR = 1.
<CFMCI>-FIPEX = 1.
<CFMCI>-KATEG = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CFMCI-FIVOR, sy-vline,
  WA_CFMCI-POTYP, sy-vline,
  WA_CFMCI-KRTYP, sy-vline,
  WA_CFMCI-FPART, sy-vline,
  WA_CFMCI-FIPUP, sy-vline,
  WA_CFMCI-POSIT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CFMCI 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_CFMCI 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_CFMCI INTO WA_CFMCI.


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

*Conversion exit FMCIL, internal->external for field FIPEX
CALL FUNCTION 'CONVERSION_EXIT_FMCIL_OUTPUT'
  EXPORTING
    input =                      WA_CFMCI-FIPEX
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CFMCI-FIPEX.
WRITE:/ 'New Value:', ld_input.

*Conversion exit FMCIL, internal->external for field FIPUP
CALL FUNCTION 'CONVERSION_EXIT_FMCIL_OUTPUT'
  EXPORTING
    input =                      WA_CFMCI-FIPUP
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CFMCI-FIPUP.
WRITE:/ 'New Value:', ld_input.

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

*Conversion exit FMCIS, internal->external for field FIPOS
CALL FUNCTION 'CONVERSION_EXIT_FMCIS_OUTPUT'
  EXPORTING
    input =                      WA_CFMCI-FIPOS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CFMCI-FIPOS.
WRITE:/ 'New Value:', ld_input.

*Conversion exit FMCIL, internal->external for field ALT_FIPEX
CALL FUNCTION 'CONVERSION_EXIT_FMCIL_OUTPUT'
  EXPORTING
    input =                      WA_CFMCI-ALT_FIPEX
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CFMCI-ALT_FIPEX.
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_CFMCI_STR, 
MANDT TYPE STRING,
FIKRS TYPE STRING,
GJAHR TYPE STRING,
FIPEX TYPE STRING,
KATEG TYPE STRING,
FIVOR TYPE STRING,
POTYP TYPE STRING,
KRTYP TYPE STRING,
FPART TYPE STRING,
FIPUP TYPE STRING,
POSIT TYPE STRING,
FICTR TYPE STRING,
VPTYP TYPE STRING,
SNTYP TYPE STRING,
SNROL TYPE STRING,
KRGRP TYPE STRING,
STATS TYPE STRING,
NCBUD TYPE STRING,
AUGRP TYPE STRING,
STVAR TYPE STRING,
HSART TYPE STRING,
GKFLG TYPE STRING,
DRUCK TYPE STRING,
CFFLG TYPE STRING,
CVFLG TYPE STRING,
NEGBUD TYPE STRING,
BEZIRK TYPE STRING,
BSAMT TYPE STRING,
UBFLG TYPE STRING,
HSFLG TYPE STRING,
NDAKZ TYPE STRING,
AZPKZ TYPE STRING,
LOGSYSTEM TYPE STRING,
FIPOS TYPE STRING,
BUTYP TYPE STRING,
DATAB TYPE STRING,
DATBIS TYPE STRING,
DATE_EXP TYPE STRING,
DUMMY_FMCIEXT TYPE STRING,
CLASSIFICATION TYPE STRING,
BUDGET_RULE TYPE STRING,
ALT_FIPEX TYPE STRING,
TIPO TYPE STRING,
CIVA TYPE STRING,
CDF TYPE STRING,
DUMMY_FSTR TYPE STRING,
STR_ID TYPE STRING,
CISUB1 TYPE STRING,
CISUB2 TYPE STRING,
CISUB3 TYPE STRING,
CISUB4 TYPE STRING,
CISUB5 TYPE STRING,
DUMMY_FMCI_INCL_EEW_PS TYPE STRING,
KZ TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CFMCI_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_CFMCI_STR-MANDT sy-vline 
WA_CFMCI_STR-FIKRS sy-vline 
WA_CFMCI_STR-GJAHR sy-vline 
WA_CFMCI_STR-FIPEX sy-vline 
WA_CFMCI_STR-KATEG sy-vline 
WA_CFMCI_STR-FIVOR sy-vline 
WA_CFMCI_STR-POTYP sy-vline 
WA_CFMCI_STR-KRTYP sy-vline 
WA_CFMCI_STR-FPART sy-vline 
WA_CFMCI_STR-FIPUP sy-vline 
WA_CFMCI_STR-POSIT sy-vline 
WA_CFMCI_STR-FICTR sy-vline 
WA_CFMCI_STR-VPTYP sy-vline 
WA_CFMCI_STR-SNTYP sy-vline 
WA_CFMCI_STR-SNROL sy-vline 
WA_CFMCI_STR-KRGRP sy-vline 
WA_CFMCI_STR-STATS sy-vline 
WA_CFMCI_STR-NCBUD sy-vline 
WA_CFMCI_STR-AUGRP sy-vline 
WA_CFMCI_STR-STVAR sy-vline 
WA_CFMCI_STR-HSART sy-vline 
WA_CFMCI_STR-GKFLG sy-vline 
WA_CFMCI_STR-DRUCK sy-vline 
WA_CFMCI_STR-CFFLG sy-vline 
WA_CFMCI_STR-CVFLG sy-vline 
WA_CFMCI_STR-NEGBUD sy-vline 
WA_CFMCI_STR-BEZIRK sy-vline 
WA_CFMCI_STR-BSAMT sy-vline 
WA_CFMCI_STR-UBFLG sy-vline 
WA_CFMCI_STR-HSFLG sy-vline 
WA_CFMCI_STR-NDAKZ sy-vline 
WA_CFMCI_STR-AZPKZ sy-vline 
WA_CFMCI_STR-LOGSYSTEM sy-vline 
WA_CFMCI_STR-FIPOS sy-vline 
WA_CFMCI_STR-BUTYP sy-vline 
WA_CFMCI_STR-DATAB sy-vline 
WA_CFMCI_STR-DATBIS sy-vline 
WA_CFMCI_STR-DATE_EXP sy-vline 
WA_CFMCI_STR-DUMMY_FMCIEXT sy-vline 
WA_CFMCI_STR-CLASSIFICATION sy-vline 
WA_CFMCI_STR-BUDGET_RULE sy-vline 
WA_CFMCI_STR-ALT_FIPEX sy-vline 
WA_CFMCI_STR-TIPO sy-vline 
WA_CFMCI_STR-CIVA sy-vline 
WA_CFMCI_STR-CDF sy-vline 
WA_CFMCI_STR-DUMMY_FSTR sy-vline 
WA_CFMCI_STR-STR_ID sy-vline 
WA_CFMCI_STR-CISUB1 sy-vline 
WA_CFMCI_STR-CISUB2 sy-vline 
WA_CFMCI_STR-CISUB3 sy-vline 
WA_CFMCI_STR-CISUB4 sy-vline 
WA_CFMCI_STR-CISUB5 sy-vline 
WA_CFMCI_STR-DUMMY_FMCI_INCL_EEW_PS sy-vline 
WA_CFMCI_STR-KZ sy-vline      INTO ld_text SEPARATED BY SPACE.

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