ABAP Select data from SAP table PSBWERB_NAE into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PSBWERB_NAE
*  INTO TABLE @DATA(IT_PSBWERB_NAE2).
*--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_PSBWERB_NAE INDEX 1 INTO DATA(WA_PSBWERB_NAE2).


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

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

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PSBWERB_NAE-POSKI, sy-vline,
  WA_PSBWERB_NAE-VERNR, sy-vline,
  WA_PSBWERB_NAE-VERNA, sy-vline,
  WA_PSBWERB_NAE-ASTNR, sy-vline,
  WA_PSBWERB_NAE-ASTNA, sy-vline,
  WA_PSBWERB_NAE-PBUKR, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_PSBWERB_NAE 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_PSBWERB_NAE 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_PSBWERB_NAE INTO WA_PSBWERB_NAE.


*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_PSBWERB_NAE-AUFNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PSBWERB_NAE-AUFNR.
WRITE:/ 'New Value:', ld_input.

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

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

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

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

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

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

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

*Conversion exit SCOPE, internal->external for field SCOPE
CALL FUNCTION 'CONVERSION_EXIT_SCOPE_OUTPUT'
  EXPORTING
    input =                      WA_PSBWERB_NAE-SCOPE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PSBWERB_NAE-SCOPE.
WRITE:/ 'New Value:', ld_input.

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

*Conversion exit ALPHA, internal->external for field ISIZE
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_PSBWERB_NAE-ISIZE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PSBWERB_NAE-ISIZE.
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_PSBWERB_NAE_STR, 
AUFNR TYPE STRING,
VORNR TYPE STRING,
ELEMENT TYPE STRING,
POSID TYPE STRING,
PSPID TYPE STRING,
POSKI TYPE STRING,
VERNR TYPE STRING,
VERNA TYPE STRING,
ASTNR TYPE STRING,
ASTNA TYPE STRING,
PBUKR TYPE STRING,
PGSBR TYPE STRING,
PKOKR TYPE STRING,
PRCTR TYPE STRING,
PRART TYPE STRING,
AKOKR TYPE STRING,
AKSTL TYPE STRING,
FKOKR TYPE STRING,
FKSTL TYPE STRING,
PWPOS TYPE STRING,
SCOPE TYPE STRING,
WERKS TYPE STRING,
USR00 TYPE STRING,
USR01 TYPE STRING,
USR02 TYPE STRING,
USR03 TYPE STRING,
USR08 TYPE STRING,
USR09 TYPE STRING,
USR10 TYPE STRING,
USR11 TYPE STRING,
KOSTL TYPE STRING,
IZWEK TYPE STRING,
ISIZE TYPE STRING,
IUMKZ TYPE STRING,
STORT TYPE STRING,
GUID TYPE STRING,
CPR_GUID TYPE STRING,END OF T_EKKO_STR.
DATA: WA_PSBWERB_NAE_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_PSBWERB_NAE_STR-AUFNR sy-vline 
WA_PSBWERB_NAE_STR-VORNR sy-vline 
WA_PSBWERB_NAE_STR-ELEMENT sy-vline 
WA_PSBWERB_NAE_STR-POSID sy-vline 
WA_PSBWERB_NAE_STR-PSPID sy-vline 
WA_PSBWERB_NAE_STR-POSKI sy-vline 
WA_PSBWERB_NAE_STR-VERNR sy-vline 
WA_PSBWERB_NAE_STR-VERNA sy-vline 
WA_PSBWERB_NAE_STR-ASTNR sy-vline 
WA_PSBWERB_NAE_STR-ASTNA sy-vline 
WA_PSBWERB_NAE_STR-PBUKR sy-vline 
WA_PSBWERB_NAE_STR-PGSBR sy-vline 
WA_PSBWERB_NAE_STR-PKOKR sy-vline 
WA_PSBWERB_NAE_STR-PRCTR sy-vline 
WA_PSBWERB_NAE_STR-PRART sy-vline 
WA_PSBWERB_NAE_STR-AKOKR sy-vline 
WA_PSBWERB_NAE_STR-AKSTL sy-vline 
WA_PSBWERB_NAE_STR-FKOKR sy-vline 
WA_PSBWERB_NAE_STR-FKSTL sy-vline 
WA_PSBWERB_NAE_STR-PWPOS sy-vline 
WA_PSBWERB_NAE_STR-SCOPE sy-vline 
WA_PSBWERB_NAE_STR-WERKS sy-vline 
WA_PSBWERB_NAE_STR-USR00 sy-vline 
WA_PSBWERB_NAE_STR-USR01 sy-vline 
WA_PSBWERB_NAE_STR-USR02 sy-vline 
WA_PSBWERB_NAE_STR-USR03 sy-vline 
WA_PSBWERB_NAE_STR-USR08 sy-vline 
WA_PSBWERB_NAE_STR-USR09 sy-vline 
WA_PSBWERB_NAE_STR-USR10 sy-vline 
WA_PSBWERB_NAE_STR-USR11 sy-vline 
WA_PSBWERB_NAE_STR-KOSTL sy-vline 
WA_PSBWERB_NAE_STR-IZWEK sy-vline 
WA_PSBWERB_NAE_STR-ISIZE sy-vline 
WA_PSBWERB_NAE_STR-IUMKZ sy-vline 
WA_PSBWERB_NAE_STR-STORT sy-vline 
WA_PSBWERB_NAE_STR-GUID sy-vline 
WA_PSBWERB_NAE_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.