ABAP Select data from SAP table FKKEXC_ADD into internal table

Get Example source ABAP code based on a different SAP table
  Get ABAP code

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM FKKEXC_ADD
*  INTO TABLE @DATA(IT_FKKEXC_ADD2).
*--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_FKKEXC_ADD INDEX 1 INTO DATA(WA_FKKEXC_ADD2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<FKKEXC_ADD>-MANDT = 1.
<FKKEXC_ADD>-OFFIC = 1.
<FKKEXC_ADD>-CHDSK = 1.
<FKKEXC_ADD>-PAYID = 1.
<FKKEXC_ADD>-PAYTP = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_FKKEXC_ADD-PRTYP, sy-vline,
  WA_FKKEXC_ADD-STRTR, sy-vline,
  WA_FKKEXC_ADD-CPUDT, sy-vline,
  WA_FKKEXC_ADD-CPUTM, sy-vline,
  WA_FKKEXC_ADD-ERNAM, sy-vline,
  WA_FKKEXC_ADD-OPBEL, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_FKKEXC_ADD 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_FKKEXC_ADD 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_FKKEXC_ADD INTO WA_FKKEXC_ADD.


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

*Conversion exit ALPHA, internal->external for field PYORD
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_FKKEXC_ADD-PYORD
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FKKEXC_ADD-PYORD.
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_FKKEXC_ADD_STR, 
MANDT TYPE STRING,
OFFIC TYPE STRING,
CHDSK TYPE STRING,
PAYID TYPE STRING,
PAYTP TYPE STRING,
PRTYP TYPE STRING,
STRTR TYPE STRING,
CPUDT TYPE STRING,
CPUTM TYPE STRING,
ERNAM TYPE STRING,
OPBEL TYPE STRING,
PYORD TYPE STRING,
STDAT TYPE STRING,
RCODE TYPE STRING,
RLGRD TYPE STRING,
RLHBK TYPE STRING,
MSGID TYPE STRING,
MSGNO TYPE STRING,
MSGV1 TYPE STRING,
MSGV2 TYPE STRING,
MSGV3 TYPE STRING,
MSGV4 TYPE STRING,END OF T_EKKO_STR.
DATA: WA_FKKEXC_ADD_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_FKKEXC_ADD_STR-MANDT sy-vline 
WA_FKKEXC_ADD_STR-OFFIC sy-vline 
WA_FKKEXC_ADD_STR-CHDSK sy-vline 
WA_FKKEXC_ADD_STR-PAYID sy-vline 
WA_FKKEXC_ADD_STR-PAYTP sy-vline 
WA_FKKEXC_ADD_STR-PRTYP sy-vline 
WA_FKKEXC_ADD_STR-STRTR sy-vline 
WA_FKKEXC_ADD_STR-CPUDT sy-vline 
WA_FKKEXC_ADD_STR-CPUTM sy-vline 
WA_FKKEXC_ADD_STR-ERNAM sy-vline 
WA_FKKEXC_ADD_STR-OPBEL sy-vline 
WA_FKKEXC_ADD_STR-PYORD sy-vline 
WA_FKKEXC_ADD_STR-STDAT sy-vline 
WA_FKKEXC_ADD_STR-RCODE sy-vline 
WA_FKKEXC_ADD_STR-RLGRD sy-vline 
WA_FKKEXC_ADD_STR-RLHBK sy-vline 
WA_FKKEXC_ADD_STR-MSGID sy-vline 
WA_FKKEXC_ADD_STR-MSGNO sy-vline 
WA_FKKEXC_ADD_STR-MSGV1 sy-vline 
WA_FKKEXC_ADD_STR-MSGV2 sy-vline 
WA_FKKEXC_ADD_STR-MSGV3 sy-vline 
WA_FKKEXC_ADD_STR-MSGV4 sy-vline      INTO ld_text SEPARATED BY SPACE.

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