ABAP Select data from SAP table PS0104 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP PS0104 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 PS0104. 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 PS0104 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_PS0104 TYPE STANDARD TABLE OF PS0104,
      WA_PS0104 TYPE PS0104,
      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: <PS0104> TYPE PS0104.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_PS0104.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM PS0104
  INTO TABLE IT_PS0104.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PS0104
*  INTO TABLE @DATA(IT_PS01042).
*--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_PS0104 INDEX 1 INTO DATA(WA_PS01042).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_PS0104 ASSIGNING <PS0104>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<PS0104>-DENOM = 1.
<PS0104>-WAERS = 1.
<PS0104>-NBNDS = 1.
<PS0104>-OWNER = 1.
<PS0104>-OSUBT = 1.

ENDLOOP.

LOOP AT IT_PS0104 INTO WA_PS0104.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PS0104-OOBJP, sy-vline,
  WA_PS0104-ONAME, sy-vline,
  WA_PS0104-ONAM1, sy-vline,
  WA_PS0104-OADDR, sy-vline,
  WA_PS0104-OSTRA, sy-vline,
  WA_PS0104-OCITY, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_PS0104 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_PS0104 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_PS0104 INTO WA_PS0104.


*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.
ENDFORM. 

*&---------------------------------------------------------------------*
*& Form process_as_string_field_values
*&---------------------------------------------------------------------*
FORM process_as_string_field_values CHANGING p_EKKO LIKE wa_EKKO.

TYPES: BEGIN OF T_PS0104_STR, 
DENOM TYPE STRING,
WAERS TYPE STRING,
NBNDS TYPE STRING,
OWNER TYPE STRING,
OSUBT TYPE STRING,
OOBJP TYPE STRING,
ONAME TYPE STRING,
ONAM1 TYPE STRING,
OADDR TYPE STRING,
OSTRA TYPE STRING,
OCITY TYPE STRING,
OSTAT TYPE STRING,
OPSTL TYPE STRING,
OLAND TYPE STRING,
TAXID TYPE STRING,
BENEF TYPE STRING,
BSUBT TYPE STRING,
BOBJP TYPE STRING,
BNAME TYPE STRING,
BNAM1 TYPE STRING,
BADDR TYPE STRING,
BSTRA TYPE STRING,
BCITY TYPE STRING,
BSTAT TYPE STRING,
BPSTL TYPE STRING,
BLAND TYPE STRING,
TXID2 TYPE STRING,
ROTSQ TYPE STRING,END OF T_EKKO_STR.
DATA: WA_PS0104_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_PS0104_STR-DENOM sy-vline 
WA_PS0104_STR-WAERS sy-vline 
WA_PS0104_STR-NBNDS sy-vline 
WA_PS0104_STR-OWNER sy-vline 
WA_PS0104_STR-OSUBT sy-vline 
WA_PS0104_STR-OOBJP sy-vline 
WA_PS0104_STR-ONAME sy-vline 
WA_PS0104_STR-ONAM1 sy-vline 
WA_PS0104_STR-OADDR sy-vline 
WA_PS0104_STR-OSTRA sy-vline 
WA_PS0104_STR-OCITY sy-vline 
WA_PS0104_STR-OSTAT sy-vline 
WA_PS0104_STR-OPSTL sy-vline 
WA_PS0104_STR-OLAND sy-vline 
WA_PS0104_STR-TAXID sy-vline 
WA_PS0104_STR-BENEF sy-vline 
WA_PS0104_STR-BSUBT sy-vline 
WA_PS0104_STR-BOBJP sy-vline 
WA_PS0104_STR-BNAME sy-vline 
WA_PS0104_STR-BNAM1 sy-vline 
WA_PS0104_STR-BADDR sy-vline 
WA_PS0104_STR-BSTRA sy-vline 
WA_PS0104_STR-BCITY sy-vline 
WA_PS0104_STR-BSTAT sy-vline 
WA_PS0104_STR-BPSTL sy-vline 
WA_PS0104_STR-BLAND sy-vline 
WA_PS0104_STR-TXID2 sy-vline 
WA_PS0104_STR-ROTSQ sy-vline      INTO ld_text SEPARATED BY SPACE.

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