ABAP Select data from SAP table CNFACTI into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CNFACTI
*  INTO TABLE @DATA(IT_CNFACTI2).
*--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_CNFACTI INDEX 1 INTO DATA(WA_CNFACTI2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<CNFACTI>-ISM01 = 1.
<CNFACTI>-ILE01 = 1.
<CNFACTI>-ISM02 = 1.
<CNFACTI>-ILE02 = 1.
<CNFACTI>-ISM03 = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CNFACTI-ILE03, sy-vline,
  WA_CNFACTI-ISM04, sy-vline,
  WA_CNFACTI-ILE04, sy-vline,
  WA_CNFACTI-ISM05, sy-vline,
  WA_CNFACTI-ILE05, sy-vline,
  WA_CNFACTI-ISM06, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CNFACTI 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_CNFACTI 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_CNFACTI INTO WA_CNFACTI.


*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 CUNIT, internal->external for field ILE01
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_CNFACTI-ILE01
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CNFACTI-ILE01.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field ILE02
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_CNFACTI-ILE02
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CNFACTI-ILE02.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field ILE03
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_CNFACTI-ILE03
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CNFACTI-ILE03.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field ILE04
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_CNFACTI-ILE04
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CNFACTI-ILE04.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field ILE05
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_CNFACTI-ILE05
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CNFACTI-ILE05.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field ILE06
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_CNFACTI-ILE06
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CNFACTI-ILE06.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field ISMNE
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_CNFACTI-ISMNE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CNFACTI-ISMNE.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field IPRE1
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_CNFACTI-IPRE1
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CNFACTI-IPRE1.
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_CNFACTI_STR, 
ISM01 TYPE STRING,
ILE01 TYPE STRING,
ISM02 TYPE STRING,
ILE02 TYPE STRING,
ISM03 TYPE STRING,
ILE03 TYPE STRING,
ISM04 TYPE STRING,
ILE04 TYPE STRING,
ISM05 TYPE STRING,
ILE05 TYPE STRING,
ISM06 TYPE STRING,
ILE06 TYPE STRING,
ISMNW TYPE STRING,
ISMNE TYPE STRING,
IPRZ1 TYPE STRING,
IPRE1 TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CNFACTI_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_CNFACTI_STR-ISM01 sy-vline 
WA_CNFACTI_STR-ILE01 sy-vline 
WA_CNFACTI_STR-ISM02 sy-vline 
WA_CNFACTI_STR-ILE02 sy-vline 
WA_CNFACTI_STR-ISM03 sy-vline 
WA_CNFACTI_STR-ILE03 sy-vline 
WA_CNFACTI_STR-ISM04 sy-vline 
WA_CNFACTI_STR-ILE04 sy-vline 
WA_CNFACTI_STR-ISM05 sy-vline 
WA_CNFACTI_STR-ILE05 sy-vline 
WA_CNFACTI_STR-ISM06 sy-vline 
WA_CNFACTI_STR-ILE06 sy-vline 
WA_CNFACTI_STR-ISMNW sy-vline 
WA_CNFACTI_STR-ISMNE sy-vline 
WA_CNFACTI_STR-IPRZ1 sy-vline 
WA_CNFACTI_STR-IPRE1 sy-vline      INTO ld_text SEPARATED BY SPACE.

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