ABAP Select data from SAP table PSBWACTKBED into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PSBWACTKBED
*  INTO TABLE @DATA(IT_PSBWACTKBED2).
*--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_PSBWACTKBED INDEX 1 INTO DATA(WA_PSBWACTKBED2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<PSBWACTKBED>-AUFNR = 1.
<PSBWACTKBED>-VORNR = 1.
<PSBWACTKBED>-PSPID = 1.
<PSBWACTKBED>-POSID = 1.
<PSBWACTKBED>-AEDAT = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PSBWACTKBED-ERDAT, sy-vline,
  WA_PSBWACTKBED-WERKS, sy-vline,
  WA_PSBWACTKBED-ARBPL, sy-vline,
  WA_PSBWACTKBED-KAPART, sy-vline,
  WA_PSBWACTKBED-FSTAD, sy-vline,
  WA_PSBWACTKBED-FENDD, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_PSBWACTKBED 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_PSBWACTKBED 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_PSBWACTKBED INTO WA_PSBWACTKBED.


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

*Conversion exit NUMCV, internal->external for field VORNR
CALL FUNCTION 'CONVERSION_EXIT_NUMCV_OUTPUT'
  EXPORTING
    input =                      WA_PSBWACTKBED-VORNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PSBWACTKBED-VORNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ABPSN, internal->external for field PSPID
CALL FUNCTION 'CONVERSION_EXIT_ABPSN_OUTPUT'
  EXPORTING
    input =                      WA_PSBWACTKBED-PSPID
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PSBWACTKBED-PSPID.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ABPSN, internal->external for field POSID
CALL FUNCTION 'CONVERSION_EXIT_ABPSN_OUTPUT'
  EXPORTING
    input =                      WA_PSBWACTKBED-POSID
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PSBWACTKBED-POSID.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field KEINH
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_PSBWACTKBED-KEINH
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PSBWACTKBED-KEINH.
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_PSBWACTKBED_STR, 
AUFNR TYPE STRING,
VORNR TYPE STRING,
PSPID TYPE STRING,
POSID TYPE STRING,
AEDAT TYPE STRING,
ERDAT TYPE STRING,
WERKS TYPE STRING,
ARBPL TYPE STRING,
KAPART TYPE STRING,
FSTAD TYPE STRING,
FENDD TYPE STRING,
KALID TYPE STRING,
KBEASOLL TYPE STRING,
KBEAREST TYPE STRING,
KEINH TYPE STRING,
GUID TYPE STRING,
CPR_GUID TYPE STRING,END OF T_EKKO_STR.
DATA: WA_PSBWACTKBED_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_PSBWACTKBED_STR-AUFNR sy-vline 
WA_PSBWACTKBED_STR-VORNR sy-vline 
WA_PSBWACTKBED_STR-PSPID sy-vline 
WA_PSBWACTKBED_STR-POSID sy-vline 
WA_PSBWACTKBED_STR-AEDAT sy-vline 
WA_PSBWACTKBED_STR-ERDAT sy-vline 
WA_PSBWACTKBED_STR-WERKS sy-vline 
WA_PSBWACTKBED_STR-ARBPL sy-vline 
WA_PSBWACTKBED_STR-KAPART sy-vline 
WA_PSBWACTKBED_STR-FSTAD sy-vline 
WA_PSBWACTKBED_STR-FENDD sy-vline 
WA_PSBWACTKBED_STR-KALID sy-vline 
WA_PSBWACTKBED_STR-KBEASOLL sy-vline 
WA_PSBWACTKBED_STR-KBEAREST sy-vline 
WA_PSBWACTKBED_STR-KEINH sy-vline 
WA_PSBWACTKBED_STR-GUID sy-vline 
WA_PSBWACTKBED_STR-CPR_GUID sy-vline      INTO ld_text SEPARATED BY SPACE.

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