ABAP Select data from SAP table PS4003 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP PS4003 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 PS4003. 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 PS4003 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_PS4003 TYPE STANDARD TABLE OF PS4003,
      WA_PS4003 TYPE PS4003,
      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: <PS4003> TYPE PS4003.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_PS4003.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM PS4003
  INTO TABLE IT_PS4003.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PS4003
*  INTO TABLE @DATA(IT_PS40032).
*--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_PS4003 INDEX 1 INTO DATA(WA_PS40032).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_PS4003 ASSIGNING <PS4003>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<PS4003>-INDIC = 1.
<PS4003>-APACT = 1.
<PS4003>-UZEIT = 1.
<PS4003>-OTYPE = 1.
<PS4003>-OBJID = 1.

ENDLOOP.

LOOP AT IT_PS4003 INTO WA_PS4003.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PS4003-REFID, sy-vline,
  WA_PS4003-IDTXT, sy-vline,
  WA_PS4003-RECTK, sy-vline,
  WA_PS4003-RESPO, sy-vline,
  WA_PS4003-RESPO1, sy-vline,
  WA_PS4003-RESPO2, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_PS4003 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_PS4003 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_PS4003 INTO WA_PS4003.


*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_PS4003_STR, 
INDIC TYPE STRING,
APACT TYPE STRING,
UZEIT TYPE STRING,
OTYPE TYPE STRING,
OBJID TYPE STRING,
REFID TYPE STRING,
IDTXT TYPE STRING,
RECTK TYPE STRING,
RESPO TYPE STRING,
RESPO1 TYPE STRING,
RESPO2 TYPE STRING,
PLDAT TYPE STRING,
PLTIM TYPE STRING,
LETEX TYPE STRING,
NOTEX TYPE STRING,
LEMOD TYPE STRING,
REMEM TYPE STRING,
GEBNR TYPE STRING,
ZIMNR TYPE STRING,
RCTK2 TYPE STRING,
RCTK3 TYPE STRING,
RCTK4 TYPE STRING,END OF T_EKKO_STR.
DATA: WA_PS4003_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_PS4003_STR-INDIC sy-vline 
WA_PS4003_STR-APACT sy-vline 
WA_PS4003_STR-UZEIT sy-vline 
WA_PS4003_STR-OTYPE sy-vline 
WA_PS4003_STR-OBJID sy-vline 
WA_PS4003_STR-REFID sy-vline 
WA_PS4003_STR-IDTXT sy-vline 
WA_PS4003_STR-RECTK sy-vline 
WA_PS4003_STR-RESPO sy-vline 
WA_PS4003_STR-RESPO1 sy-vline 
WA_PS4003_STR-RESPO2 sy-vline 
WA_PS4003_STR-PLDAT sy-vline 
WA_PS4003_STR-PLTIM sy-vline 
WA_PS4003_STR-LETEX sy-vline 
WA_PS4003_STR-NOTEX sy-vline 
WA_PS4003_STR-LEMOD sy-vline 
WA_PS4003_STR-REMEM sy-vline 
WA_PS4003_STR-GEBNR sy-vline 
WA_PS4003_STR-ZIMNR sy-vline 
WA_PS4003_STR-RCTK2 sy-vline 
WA_PS4003_STR-RCTK3 sy-vline 
WA_PS4003_STR-RCTK4 sy-vline      INTO ld_text SEPARATED BY SPACE.

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