ABAP Select data from SAP table FKK_REPDATA_SAMPLE 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 FKK_REPDATA_SAMPLE 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 FKK_REPDATA_SAMPLE. 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 FKK_REPDATA_SAMPLE 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_FKK_REPDATA_SAMPLE TYPE STANDARD TABLE OF FKK_REPDATA_SAMPLE,
      WA_FKK_REPDATA_SAMPLE TYPE FKK_REPDATA_SAMPLE,
      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: <FKK_REPDATA_SAMPLE> TYPE FKK_REPDATA_SAMPLE.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM FKK_REPDATA_SAMPLE
*  INTO TABLE @DATA(IT_FKK_REPDATA_SAMPLE2).
*--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_FKK_REPDATA_SAMPLE INDEX 1 INTO DATA(WA_FKK_REPDATA_SAMPLE2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<FKK_REPDATA_SAMPLE>-RVID = 1.
<FKK_REPDATA_SAMPLE>-REVAC1 = 1.
<FKK_REPDATA_SAMPLE>-TAXAM1 = 1.
<FKK_REPDATA_SAMPLE>-SIGN1 = 1.
<FKK_REPDATA_SAMPLE>-REVAC2 = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_FKK_REPDATA_SAMPLE-TAXAM2, sy-vline,
  WA_FKK_REPDATA_SAMPLE-SIGN2, sy-vline,
  WA_FKK_REPDATA_SAMPLE-REVAC3, sy-vline,
  WA_FKK_REPDATA_SAMPLE-TAXAM3, sy-vline,
  WA_FKK_REPDATA_SAMPLE-SIGN3, sy-vline,
  WA_FKK_REPDATA_SAMPLE-XMORE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_FKK_REPDATA_SAMPLE 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_FKK_REPDATA_SAMPLE 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_FKK_REPDATA_SAMPLE INTO WA_FKK_REPDATA_SAMPLE.


*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 REVAC1
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_FKK_REPDATA_SAMPLE-REVAC1
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FKK_REPDATA_SAMPLE-REVAC1.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field REVAC2
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_FKK_REPDATA_SAMPLE-REVAC2
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FKK_REPDATA_SAMPLE-REVAC2.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field REVAC3
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_FKK_REPDATA_SAMPLE-REVAC3
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FKK_REPDATA_SAMPLE-REVAC3.
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_FKK_REPDATA_SAMPLE_STR, 
RVID TYPE STRING,
REVAC1 TYPE STRING,
TAXAM1 TYPE STRING,
SIGN1 TYPE STRING,
REVAC2 TYPE STRING,
TAXAM2 TYPE STRING,
SIGN2 TYPE STRING,
REVAC3 TYPE STRING,
TAXAM3 TYPE STRING,
SIGN3 TYPE STRING,
XMORE TYPE STRING,
NAME TYPE STRING,
STRASSE TYPE STRING,
ORT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_FKK_REPDATA_SAMPLE_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_FKK_REPDATA_SAMPLE_STR-RVID sy-vline 
WA_FKK_REPDATA_SAMPLE_STR-REVAC1 sy-vline 
WA_FKK_REPDATA_SAMPLE_STR-TAXAM1 sy-vline 
WA_FKK_REPDATA_SAMPLE_STR-SIGN1 sy-vline 
WA_FKK_REPDATA_SAMPLE_STR-REVAC2 sy-vline 
WA_FKK_REPDATA_SAMPLE_STR-TAXAM2 sy-vline 
WA_FKK_REPDATA_SAMPLE_STR-SIGN2 sy-vline 
WA_FKK_REPDATA_SAMPLE_STR-REVAC3 sy-vline 
WA_FKK_REPDATA_SAMPLE_STR-TAXAM3 sy-vline 
WA_FKK_REPDATA_SAMPLE_STR-SIGN3 sy-vline 
WA_FKK_REPDATA_SAMPLE_STR-XMORE sy-vline 
WA_FKK_REPDATA_SAMPLE_STR-NAME sy-vline 
WA_FKK_REPDATA_SAMPLE_STR-STRASSE sy-vline 
WA_FKK_REPDATA_SAMPLE_STR-ORT sy-vline      INTO ld_text SEPARATED BY SPACE.

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