ABAP Select data from SAP table PWUPCUS into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PWUPCUS
*  INTO TABLE @DATA(IT_PWUPCUS2).
*--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_PWUPCUS INDEX 1 INTO DATA(WA_PWUPCUS2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<PWUPCUS>-MANDT = 1.
<PWUPCUS>-STATUSOBJECT = 1.
<PWUPCUS>-STATUSCODE = 1.
<PWUPCUS>-STATUSPROFILE = 1.
<PWUPCUS>-STATUSISINACTIVE = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PWUPCUS-MASTERLANGUAGE, sy-vline,
  WA_PWUPCUS-USERSTATUSNAMESESSIONLANG, sy-vline,
  WA_PWUPCUS-USERSTATUSSHORTNAMESESSIONLANG, sy-vline,
  WA_PWUPCUS-USERSTATUSNAMEMASTERLANG, sy-vline,
  WA_PWUPCUS-USERSTATUSSHORTNAMEMASTERLANG, sy-vline,
  WA_PWUPCUS-USERSTATUSNAME, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_PWUPCUS 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_PWUPCUS 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_PWUPCUS INTO WA_PWUPCUS.


*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 ISOLA, internal->external for field MASTERLANGUAGE
CALL FUNCTION 'CONVERSION_EXIT_ISOLA_OUTPUT'
  EXPORTING
    input =                      WA_PWUPCUS-MASTERLANGUAGE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PWUPCUS-MASTERLANGUAGE.
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_PWUPCUS_STR, 
MANDT TYPE STRING,
STATUSOBJECT TYPE STRING,
STATUSCODE TYPE STRING,
STATUSPROFILE TYPE STRING,
STATUSISINACTIVE TYPE STRING,
MASTERLANGUAGE TYPE STRING,
USERSTATUSNAMESESSIONLANG TYPE STRING,
USERSTATUSSHORTNAMESESSIONLANG TYPE STRING,
USERSTATUSNAMEMASTERLANG TYPE STRING,
USERSTATUSSHORTNAMEMASTERLANG TYPE STRING,
USERSTATUSNAME TYPE STRING,
USERSTATUSSHORTNAME TYPE STRING,END OF T_EKKO_STR.
DATA: WA_PWUPCUS_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_PWUPCUS_STR-MANDT sy-vline 
WA_PWUPCUS_STR-STATUSOBJECT sy-vline 
WA_PWUPCUS_STR-STATUSCODE sy-vline 
WA_PWUPCUS_STR-STATUSPROFILE sy-vline 
WA_PWUPCUS_STR-STATUSISINACTIVE sy-vline 
WA_PWUPCUS_STR-MASTERLANGUAGE sy-vline 
WA_PWUPCUS_STR-USERSTATUSNAMESESSIONLANG sy-vline 
WA_PWUPCUS_STR-USERSTATUSSHORTNAMESESSIONLANG sy-vline 
WA_PWUPCUS_STR-USERSTATUSNAMEMASTERLANG sy-vline 
WA_PWUPCUS_STR-USERSTATUSSHORTNAMEMASTERLANG sy-vline 
WA_PWUPCUS_STR-USERSTATUSNAME sy-vline 
WA_PWUPCUS_STR-USERSTATUSSHORTNAME sy-vline      INTO ld_text SEPARATED BY SPACE.

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