ABAP Select data from SAP table /ATL/ZKP005 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP /ATL/ZKP005 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 /ATL/ZKP005. 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 /ATL/ZKP005 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_/ATL/ZKP005 TYPE STANDARD TABLE OF /ATL/ZKP005,
      WA_/ATL/ZKP005 TYPE /ATL/ZKP005,
      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: </ATL/ZKP005> TYPE /ATL/ZKP005.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_/ATL/ZKP005.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM /ATL/ZKP005
  INTO TABLE IT_/ATL/ZKP005.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM /ATL/ZKP005
*  INTO TABLE @DATA(IT_/ATL/ZKP0052).
*--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_/ATL/ZKP005 INDEX 1 INTO DATA(WA_/ATL/ZKP0052).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_/ATL/ZKP005 ASSIGNING </ATL/ZKP005>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
</ATL/ZKP005>-ZBLDAT = 1.
</ATL/ZKP005>-ZBUDAT = 1.
</ATL/ZKP005>-ZBLART = 1.
</ATL/ZKP005>-ZMONAT = 1.
</ATL/ZKP005>-ZBUKRS = 1.

ENDLOOP.

LOOP AT IT_/ATL/ZKP005 INTO WA_/ATL/ZKP005.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_/ATL/ZKP005-ZWAERS, sy-vline,
  WA_/ATL/ZKP005-ZGSBER, sy-vline,
  WA_/ATL/ZKP005-ZNEWBS, sy-vline,
  WA_/ATL/ZKP005-ZNEWUM, sy-vline,
  WA_/ATL/ZKP005-ZNEWKO, sy-vline,
  WA_/ATL/ZKP005-ZWRBTR, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_/ATL/ZKP005 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_/ATL/ZKP005 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_/ATL/ZKP005 INTO WA_/ATL/ZKP005.


*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 ZNEWKO
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_/ATL/ZKP005-ZNEWKO
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/ATL/ZKP005-ZNEWKO.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AU132, internal->external for field ZWRBTR
CALL FUNCTION 'CONVERSION_EXIT_AU132_OUTPUT'
  EXPORTING
    input =                      WA_/ATL/ZKP005-ZWRBTR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/ATL/ZKP005-ZWRBTR.
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_/ATL/ZKP005_STR, 
ZBLDAT TYPE STRING,
ZBUDAT TYPE STRING,
ZBLART TYPE STRING,
ZMONAT TYPE STRING,
ZBUKRS TYPE STRING,
ZWAERS TYPE STRING,
ZGSBER TYPE STRING,
ZNEWBS TYPE STRING,
ZNEWUM TYPE STRING,
ZNEWKO TYPE STRING,
ZWRBTR TYPE STRING,
ZFBDT TYPE STRING,
ZUONR TYPE STRING,
ZSGTXT TYPE STRING,
ZUONR1 TYPE STRING,END OF T_EKKO_STR.
DATA: WA_/ATL/ZKP005_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_/ATL/ZKP005_STR-ZBLDAT sy-vline 
WA_/ATL/ZKP005_STR-ZBUDAT sy-vline 
WA_/ATL/ZKP005_STR-ZBLART sy-vline 
WA_/ATL/ZKP005_STR-ZMONAT sy-vline 
WA_/ATL/ZKP005_STR-ZBUKRS sy-vline 
WA_/ATL/ZKP005_STR-ZWAERS sy-vline 
WA_/ATL/ZKP005_STR-ZGSBER sy-vline 
WA_/ATL/ZKP005_STR-ZNEWBS sy-vline 
WA_/ATL/ZKP005_STR-ZNEWUM sy-vline 
WA_/ATL/ZKP005_STR-ZNEWKO sy-vline 
WA_/ATL/ZKP005_STR-ZWRBTR sy-vline 
WA_/ATL/ZKP005_STR-ZFBDT sy-vline 
WA_/ATL/ZKP005_STR-ZUONR sy-vline 
WA_/ATL/ZKP005_STR-ZSGTXT sy-vline 
WA_/ATL/ZKP005_STR-ZUONR1 sy-vline      INTO ld_text SEPARATED BY SPACE.

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