ABAP Select data from SAP table PWRKPCKGWITM into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PWRKPCKGWITM
*  INTO TABLE @DATA(IT_PWRKPCKGWITM2).
*--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_PWRKPCKGWITM INDEX 1 INTO DATA(WA_PWRKPCKGWITM2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<PWRKPCKGWITM>-MANDT = 1.
<PWRKPCKGWITM>-WORKITEMUUID = 1.
<PWRKPCKGWITM>-ENGAGEMENTPROJECT = 1.
<PWRKPCKGWITM>-WORKPACKAGE = 1.
<PWRKPCKGWITM>-WBSELEMENTOBJECT = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PWRKPCKGWITM-ENGAGEMENTPROJFINPLANUUID, sy-vline,
  WA_PWRKPCKGWITM-WORKPACKAGEUUID, sy-vline,
  WA_PWRKPCKGWITM-WORKITEM, sy-vline,
  WA_PWRKPCKGWITM-WORKITEMNAME, sy-vline,
  WA_PWRKPCKGWITM-WORKITEMISINACTIVE, sy-vline,
  WA_PWRKPCKGWITM-WORKITEMISSTANDARD, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_PWRKPCKGWITM 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_PWRKPCKGWITM 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_PWRKPCKGWITM INTO WA_PWRKPCKGWITM.


*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_PWRKPCKGWITM_STR, 
MANDT TYPE STRING,
WORKITEMUUID TYPE STRING,
ENGAGEMENTPROJECT TYPE STRING,
WORKPACKAGE TYPE STRING,
WBSELEMENTOBJECT TYPE STRING,
ENGAGEMENTPROJFINPLANUUID TYPE STRING,
WORKPACKAGEUUID TYPE STRING,
WORKITEM TYPE STRING,
WORKITEMNAME TYPE STRING,
WORKITEMISINACTIVE TYPE STRING,
WORKITEMISSTANDARD TYPE STRING,
CREATED_BY TYPE STRING,
CREATED_ON TYPE STRING,
CHANGED_BY TYPE STRING,
CHANGED_ON TYPE STRING,
IS_DELETED TYPE STRING,END OF T_EKKO_STR.
DATA: WA_PWRKPCKGWITM_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_PWRKPCKGWITM_STR-MANDT sy-vline 
WA_PWRKPCKGWITM_STR-WORKITEMUUID sy-vline 
WA_PWRKPCKGWITM_STR-ENGAGEMENTPROJECT sy-vline 
WA_PWRKPCKGWITM_STR-WORKPACKAGE sy-vline 
WA_PWRKPCKGWITM_STR-WBSELEMENTOBJECT sy-vline 
WA_PWRKPCKGWITM_STR-ENGAGEMENTPROJFINPLANUUID sy-vline 
WA_PWRKPCKGWITM_STR-WORKPACKAGEUUID sy-vline 
WA_PWRKPCKGWITM_STR-WORKITEM sy-vline 
WA_PWRKPCKGWITM_STR-WORKITEMNAME sy-vline 
WA_PWRKPCKGWITM_STR-WORKITEMISINACTIVE sy-vline 
WA_PWRKPCKGWITM_STR-WORKITEMISSTANDARD sy-vline 
WA_PWRKPCKGWITM_STR-CREATED_BY sy-vline 
WA_PWRKPCKGWITM_STR-CREATED_ON sy-vline 
WA_PWRKPCKGWITM_STR-CHANGED_BY sy-vline 
WA_PWRKPCKGWITM_STR-CHANGED_ON sy-vline 
WA_PWRKPCKGWITM_STR-IS_DELETED sy-vline      INTO ld_text SEPARATED BY SPACE.

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