ABAP Select data from SAP table KLANBETROUT into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM KLANBETROUT
*  INTO TABLE @DATA(IT_KLANBETROUT2).
*--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_KLANBETROUT INDEX 1 INTO DATA(WA_KLANBETROUT2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<KLANBETROUT>-OBJNR = 1.
<KLANBETROUT>-BUKRS = 1.
<KLANBETROUT>-PARTNR = 1.
<KLANBETROUT>-SLPG = 1.
<KLANBETROUT>-RPORTB = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_KLANBETROUT-RDEALER, sy-vline,
  WA_KLANBETROUT-WAERS, sy-vline,
  WA_KLANBETROUT-CONTROL01, sy-vline,
  WA_KLANBETROUT-INTORG, sy-vline,
  WA_KLANBETROUT-RCOUNTRY, sy-vline,
  WA_KLANBETROUT-COUNTRY, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_KLANBETROUT 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_KLANBETROUT 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_KLANBETROUT INTO WA_KLANBETROUT.


*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 PARTNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_KLANBETROUT-PARTNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_KLANBETROUT-PARTNR.
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_KLANBETROUT_STR, 
OBJNR TYPE STRING,
BUKRS TYPE STRING,
PARTNR TYPE STRING,
SLPG TYPE STRING,
RPORTB TYPE STRING,
RDEALER TYPE STRING,
WAERS TYPE STRING,
CONTROL01 TYPE STRING,
INTORG TYPE STRING,
RCOUNTRY TYPE STRING,
COUNTRY TYPE STRING,
SECTOR TYPE STRING,
RATING TYPE STRING,
CRATING TYPE STRING,
SKE TYPE STRING,
SPS TYPE STRING,
LRB TYPE STRING,
SRE TYPE STRING,
SARAKT TYPE STRING,
SLRAKT TYPE STRING,
AUSWDAT TYPE STRING,
RBD TYPE STRING,
SCTERM TYPE STRING,
EZUSAGE TYPE STRING,
EV_ANRECH TYPE STRING,END OF T_EKKO_STR.
DATA: WA_KLANBETROUT_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_KLANBETROUT_STR-OBJNR sy-vline 
WA_KLANBETROUT_STR-BUKRS sy-vline 
WA_KLANBETROUT_STR-PARTNR sy-vline 
WA_KLANBETROUT_STR-SLPG sy-vline 
WA_KLANBETROUT_STR-RPORTB sy-vline 
WA_KLANBETROUT_STR-RDEALER sy-vline 
WA_KLANBETROUT_STR-WAERS sy-vline 
WA_KLANBETROUT_STR-CONTROL01 sy-vline 
WA_KLANBETROUT_STR-INTORG sy-vline 
WA_KLANBETROUT_STR-RCOUNTRY sy-vline 
WA_KLANBETROUT_STR-COUNTRY sy-vline 
WA_KLANBETROUT_STR-SECTOR sy-vline 
WA_KLANBETROUT_STR-RATING sy-vline 
WA_KLANBETROUT_STR-CRATING sy-vline 
WA_KLANBETROUT_STR-SKE sy-vline 
WA_KLANBETROUT_STR-SPS sy-vline 
WA_KLANBETROUT_STR-LRB sy-vline 
WA_KLANBETROUT_STR-SRE sy-vline 
WA_KLANBETROUT_STR-SARAKT sy-vline 
WA_KLANBETROUT_STR-SLRAKT sy-vline 
WA_KLANBETROUT_STR-AUSWDAT sy-vline 
WA_KLANBETROUT_STR-RBD sy-vline 
WA_KLANBETROUT_STR-SCTERM sy-vline 
WA_KLANBETROUT_STR-EZUSAGE sy-vline 
WA_KLANBETROUT_STR-EV_ANRECH sy-vline      INTO ld_text SEPARATED BY SPACE.

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