ABAP Select data from SAP table CFEXCEPTAB into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CFEXCEPTAB
*  INTO TABLE @DATA(IT_CFEXCEPTAB2).
*--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_CFEXCEPTAB INDEX 1 INTO DATA(WA_CFEXCEPTAB2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<CFEXCEPTAB>-EXCEP_NR = 1.
<CFEXCEPTAB>-TABLE = 1.
<CFEXCEPTAB>-BST = 1.
<CFEXCEPTAB>-TYPE = 1.
<CFEXCEPTAB>-TABNM = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CFEXCEPTAB-FIENM, sy-vline,
  WA_CFEXCEPTAB-FNAM, sy-vline,
  WA_CFEXCEPTAB-LOW, sy-vline,
  WA_CFEXCEPTAB-HIGH, sy-vline,
  WA_CFEXCEPTAB-SIGN, sy-vline,
  WA_CFEXCEPTAB-OPTION, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CFEXCEPTAB 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_CFEXCEPTAB 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_CFEXCEPTAB INTO WA_CFEXCEPTAB.


*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.
ENDFORM. 

*&---------------------------------------------------------------------*
*& Form process_as_string_field_values
*&---------------------------------------------------------------------*
FORM process_as_string_field_values CHANGING p_EKKO LIKE wa_EKKO.

TYPES: BEGIN OF T_CFEXCEPTAB_STR, 
EXCEP_NR TYPE STRING,
TABLE TYPE STRING,
BST TYPE STRING,
TYPE TYPE STRING,
TABNM TYPE STRING,
FIENM TYPE STRING,
FNAM TYPE STRING,
LOW TYPE STRING,
HIGH TYPE STRING,
SIGN TYPE STRING,
OPTION TYPE STRING,
TABL_X TYPE STRING,
TABL_Y TYPE STRING,
FZWERT TYPE STRING,
AUSPS_OUT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CFEXCEPTAB_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_CFEXCEPTAB_STR-EXCEP_NR sy-vline 
WA_CFEXCEPTAB_STR-TABLE sy-vline 
WA_CFEXCEPTAB_STR-BST sy-vline 
WA_CFEXCEPTAB_STR-TYPE sy-vline 
WA_CFEXCEPTAB_STR-TABNM sy-vline 
WA_CFEXCEPTAB_STR-FIENM sy-vline 
WA_CFEXCEPTAB_STR-FNAM sy-vline 
WA_CFEXCEPTAB_STR-LOW sy-vline 
WA_CFEXCEPTAB_STR-HIGH sy-vline 
WA_CFEXCEPTAB_STR-SIGN sy-vline 
WA_CFEXCEPTAB_STR-OPTION sy-vline 
WA_CFEXCEPTAB_STR-TABL_X sy-vline 
WA_CFEXCEPTAB_STR-TABL_Y sy-vline 
WA_CFEXCEPTAB_STR-FZWERT sy-vline 
WA_CFEXCEPTAB_STR-AUSPS_OUT sy-vline      INTO ld_text SEPARATED BY SPACE.

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