ABAP Select data from SAP table PWBSELEMATTR into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PWBSELEMATTR
*  INTO TABLE @DATA(IT_PWBSELEMATTR2).
*--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_PWBSELEMATTR INDEX 1 INTO DATA(WA_PWBSELEMATTR2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<PWBSELEMATTR>-MANDT = 1.
<PWBSELEMATTR>-WBSELEMENTINTERNALID = 1.
<PWBSELEMATTR>-WBSELEMENT = 1.
<PWBSELEMATTR>-WBSELEMENTEXTERNALID = 1.
<PWBSELEMATTR>-WBSELEMENTOBJECT = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PWBSELEMATTR-OBJECTTYPE, sy-vline,
  WA_PWBSELEMATTR-PROJECTINTERNALID, sy-vline,
  WA_PWBSELEMATTR-WBSDESCRIPTION, sy-vline,
  WA_PWBSELEMATTR-BASICSTARTDATE, sy-vline,
  WA_PWBSELEMATTR-BASICENDDATE, sy-vline,
  WA_PWBSELEMATTR-FORECASTEDSTARTDATE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_PWBSELEMATTR 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_PWBSELEMATTR 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_PWBSELEMATTR INTO WA_PWBSELEMATTR.


*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 CUNIT, internal->external for field BASICDURATIONUNIT
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_PWBSELEMATTR-BASICDURATIONUNIT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PWBSELEMATTR-BASICDURATIONUNIT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field FORECASTEDDURATIONUNIT
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_PWBSELEMATTR-FORECASTEDDURATIONUNIT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PWBSELEMATTR-FORECASTEDDURATIONUNIT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field ACTUALDURATIONUNIT
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_PWBSELEMATTR-ACTUALDURATIONUNIT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PWBSELEMATTR-ACTUALDURATIONUNIT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field FREEDEFINEDQUANTITY1UNIT
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_PWBSELEMATTR-FREEDEFINEDQUANTITY1UNIT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PWBSELEMATTR-FREEDEFINEDQUANTITY1UNIT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field FREEDEFINEDQUANTITY2UNIT
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_PWBSELEMATTR-FREEDEFINEDQUANTITY2UNIT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PWBSELEMATTR-FREEDEFINEDQUANTITY2UNIT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field COSTCENTER
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_PWBSELEMATTR-COSTCENTER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PWBSELEMATTR-COSTCENTER.
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_PWBSELEMATTR_STR, 
MANDT TYPE STRING,
WBSELEMENTINTERNALID TYPE STRING,
WBSELEMENT TYPE STRING,
WBSELEMENTEXTERNALID TYPE STRING,
WBSELEMENTOBJECT TYPE STRING,
OBJECTTYPE TYPE STRING,
PROJECTINTERNALID TYPE STRING,
WBSDESCRIPTION TYPE STRING,
BASICSTARTDATE TYPE STRING,
BASICENDDATE TYPE STRING,
FORECASTEDSTARTDATE TYPE STRING,
FORECASTEDENDDATE TYPE STRING,
SCHEDLDBASICEARLIESTSTARTDATE TYPE STRING,
SCHEDLDBASICEARLIESTENDDATE TYPE STRING,
SCHEDLDBASICLATESTSTARTDATE TYPE STRING,
SCHEDULEDBASICLATESTENDDATE TYPE STRING,
SCHEDLDFCSTDEARLIESTSTARTDATE TYPE STRING,
SCHEDLDFCSTDEARLIESTENDDATE TYPE STRING,
LATESTSCHEDLDFCSTDSTARTDATE TYPE STRING,
LATESTSCHEDLDFCSTDENDDATE TYPE STRING,
ACTUALSTARTDATE TYPE STRING,
ACTUALENDDATE TYPE STRING,
BASICDURATION TYPE STRING,
BASICDURATIONUNIT TYPE STRING,
FORECASTEDDURATION TYPE STRING,
FORECASTEDDURATIONUNIT TYPE STRING,
ACTUALDURATIONUNIT TYPE STRING,
ACTUALDURATION TYPE STRING,
FREEDEFINEDATTRIBUTE01 TYPE STRING,
FREEDEFINEDATTRIBUTE02 TYPE STRING,
FREEDEFINEDATTRIBUTE03 TYPE STRING,
FREEDEFINEDATTRIBUTE04 TYPE STRING,
FREEDEFINEDQUANTITY1UNIT TYPE STRING,
FREEDEFINEDQUANTITY1 TYPE STRING,
FREEDEFINEDQUANTITY2UNIT TYPE STRING,
FREEDEFINEDQUANTITY2 TYPE STRING,
FREEDEFINEDAMOUNT1CURRENCY TYPE STRING,
FREEDEFINEDAMOUNT1 TYPE STRING,
FREEDEFINEDAMOUNT2CURRENCY TYPE STRING,
FREEDEFINEDAMOUNT2 TYPE STRING,
FREEDEFINEDDATE1 TYPE STRING,
FREEDEFINEDDATE2 TYPE STRING,
FREEDEFINEDINDICATOR1 TYPE STRING,
FREEDEFINEDINDICATOR2 TYPE STRING,
PRIORITYCODE TYPE STRING,
WBSELEMENTHIERARCHYLEVEL TYPE STRING,
CURRENCY TYPE STRING,
PLANT TYPE STRING,
COMPANYCODE TYPE STRING,
APPLICANTCODE TYPE STRING,
WBSELEMENTISPLANNINGELEMENT TYPE STRING,
WBSISACCOUNTASSIGNMENTELEMENT TYPE STRING,
WBSELEMENTISBILLINGELEMENT TYPE STRING,
PROJECTTYPE TYPE STRING,
CREATIONDATE TYPE STRING,
CREATEDBYUSER TYPE STRING,
LASTCHANGEDATE TYPE STRING,
RESPONSIBLEPERSON TYPE STRING,
RESPONSIBLEPERSONNAME TYPE STRING,
COSTCENTER TYPE STRING,
CONCATENATEDACTIVESYSTSTSNAME TYPE STRING,
CONCATENATEDACTIVEUSERSTSNAME TYPE STRING,END OF T_EKKO_STR.
DATA: WA_PWBSELEMATTR_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_PWBSELEMATTR_STR-MANDT sy-vline 
WA_PWBSELEMATTR_STR-WBSELEMENTINTERNALID sy-vline 
WA_PWBSELEMATTR_STR-WBSELEMENT sy-vline 
WA_PWBSELEMATTR_STR-WBSELEMENTEXTERNALID sy-vline 
WA_PWBSELEMATTR_STR-WBSELEMENTOBJECT sy-vline 
WA_PWBSELEMATTR_STR-OBJECTTYPE sy-vline 
WA_PWBSELEMATTR_STR-PROJECTINTERNALID sy-vline 
WA_PWBSELEMATTR_STR-WBSDESCRIPTION sy-vline 
WA_PWBSELEMATTR_STR-BASICSTARTDATE sy-vline 
WA_PWBSELEMATTR_STR-BASICENDDATE sy-vline 
WA_PWBSELEMATTR_STR-FORECASTEDSTARTDATE sy-vline 
WA_PWBSELEMATTR_STR-FORECASTEDENDDATE sy-vline 
WA_PWBSELEMATTR_STR-SCHEDLDBASICEARLIESTSTARTDATE sy-vline 
WA_PWBSELEMATTR_STR-SCHEDLDBASICEARLIESTENDDATE sy-vline 
WA_PWBSELEMATTR_STR-SCHEDLDBASICLATESTSTARTDATE sy-vline 
WA_PWBSELEMATTR_STR-SCHEDULEDBASICLATESTENDDATE sy-vline 
WA_PWBSELEMATTR_STR-SCHEDLDFCSTDEARLIESTSTARTDATE sy-vline 
WA_PWBSELEMATTR_STR-SCHEDLDFCSTDEARLIESTENDDATE sy-vline 
WA_PWBSELEMATTR_STR-LATESTSCHEDLDFCSTDSTARTDATE sy-vline 
WA_PWBSELEMATTR_STR-LATESTSCHEDLDFCSTDENDDATE sy-vline 
WA_PWBSELEMATTR_STR-ACTUALSTARTDATE sy-vline 
WA_PWBSELEMATTR_STR-ACTUALENDDATE sy-vline 
WA_PWBSELEMATTR_STR-BASICDURATION sy-vline 
WA_PWBSELEMATTR_STR-BASICDURATIONUNIT sy-vline 
WA_PWBSELEMATTR_STR-FORECASTEDDURATION sy-vline 
WA_PWBSELEMATTR_STR-FORECASTEDDURATIONUNIT sy-vline 
WA_PWBSELEMATTR_STR-ACTUALDURATIONUNIT sy-vline 
WA_PWBSELEMATTR_STR-ACTUALDURATION sy-vline 
WA_PWBSELEMATTR_STR-FREEDEFINEDATTRIBUTE01 sy-vline 
WA_PWBSELEMATTR_STR-FREEDEFINEDATTRIBUTE02 sy-vline 
WA_PWBSELEMATTR_STR-FREEDEFINEDATTRIBUTE03 sy-vline 
WA_PWBSELEMATTR_STR-FREEDEFINEDATTRIBUTE04 sy-vline 
WA_PWBSELEMATTR_STR-FREEDEFINEDQUANTITY1UNIT sy-vline 
WA_PWBSELEMATTR_STR-FREEDEFINEDQUANTITY1 sy-vline 
WA_PWBSELEMATTR_STR-FREEDEFINEDQUANTITY2UNIT sy-vline 
WA_PWBSELEMATTR_STR-FREEDEFINEDQUANTITY2 sy-vline 
WA_PWBSELEMATTR_STR-FREEDEFINEDAMOUNT1CURRENCY sy-vline 
WA_PWBSELEMATTR_STR-FREEDEFINEDAMOUNT1 sy-vline 
WA_PWBSELEMATTR_STR-FREEDEFINEDAMOUNT2CURRENCY sy-vline 
WA_PWBSELEMATTR_STR-FREEDEFINEDAMOUNT2 sy-vline 
WA_PWBSELEMATTR_STR-FREEDEFINEDDATE1 sy-vline 
WA_PWBSELEMATTR_STR-FREEDEFINEDDATE2 sy-vline 
WA_PWBSELEMATTR_STR-FREEDEFINEDINDICATOR1 sy-vline 
WA_PWBSELEMATTR_STR-FREEDEFINEDINDICATOR2 sy-vline 
WA_PWBSELEMATTR_STR-PRIORITYCODE sy-vline 
WA_PWBSELEMATTR_STR-WBSELEMENTHIERARCHYLEVEL sy-vline 
WA_PWBSELEMATTR_STR-CURRENCY sy-vline 
WA_PWBSELEMATTR_STR-PLANT sy-vline 
WA_PWBSELEMATTR_STR-COMPANYCODE sy-vline 
WA_PWBSELEMATTR_STR-APPLICANTCODE sy-vline 
WA_PWBSELEMATTR_STR-WBSELEMENTISPLANNINGELEMENT sy-vline 
WA_PWBSELEMATTR_STR-WBSISACCOUNTASSIGNMENTELEMENT sy-vline 
WA_PWBSELEMATTR_STR-WBSELEMENTISBILLINGELEMENT sy-vline 
WA_PWBSELEMATTR_STR-PROJECTTYPE sy-vline 
WA_PWBSELEMATTR_STR-CREATIONDATE sy-vline 
WA_PWBSELEMATTR_STR-CREATEDBYUSER sy-vline 
WA_PWBSELEMATTR_STR-LASTCHANGEDATE sy-vline 
WA_PWBSELEMATTR_STR-RESPONSIBLEPERSON sy-vline 
WA_PWBSELEMATTR_STR-RESPONSIBLEPERSONNAME sy-vline 
WA_PWBSELEMATTR_STR-COSTCENTER sy-vline 
WA_PWBSELEMATTR_STR-CONCATENATEDACTIVESYSTSTSNAME sy-vline 
WA_PWBSELEMATTR_STR-CONCATENATEDACTIVEUSERSTSNAME sy-vline      INTO ld_text SEPARATED BY SPACE.

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