ABAP Select data from SAP table I_CPWBSPLANDATA into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM I_CPWBSPLANDATA
*  INTO TABLE @DATA(IT_I_CPWBSPLANDATA2).
*--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_I_CPWBSPLANDATA INDEX 1 INTO DATA(WA_I_CPWBSPLANDATA2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<I_CPWBSPLANDATA>-MANDT = 1.
<I_CPWBSPLANDATA>-WBSELEMENTOBJECT = 1.
<I_CPWBSPLANDATA>-ENGAGEMENTPROJFINPLANUUID = 1.
<I_CPWBSPLANDATA>-CUSTPROJWORKPACKAGEUUID = 1.
<I_CPWBSPLANDATA>-CUSTOMERPROJECTRESOURCE = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_I_CPWBSPLANDATA-CURRENCY, sy-vline,
  WA_I_CPWBSPLANDATA-UNITOFMEASURE, sy-vline,
  WA_I_CPWBSPLANDATA-ACTUALPLANDEVIATIONCOST, sy-vline,
  WA_I_CPWBSPLANDATA-CUSTPROJWRKPCKGPLANCOST, sy-vline,
  WA_I_CPWBSPLANDATA-CUSTPROJWRKPCKGPLANREVENUE, sy-vline,
  WA_I_CPWBSPLANDATA-CUSTPROJWRKPCKGPLANEFFORTQTY, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_I_CPWBSPLANDATA 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_I_CPWBSPLANDATA 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_I_CPWBSPLANDATA INTO WA_I_CPWBSPLANDATA.


*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 UNITOFMEASURE
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_I_CPWBSPLANDATA-UNITOFMEASURE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_I_CPWBSPLANDATA-UNITOFMEASURE.
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_I_CPWBSPLANDATA_STR, 
MANDT TYPE STRING,
WBSELEMENTOBJECT TYPE STRING,
ENGAGEMENTPROJFINPLANUUID TYPE STRING,
CUSTPROJWORKPACKAGEUUID TYPE STRING,
CUSTOMERPROJECTRESOURCE TYPE STRING,
CURRENCY TYPE STRING,
UNITOFMEASURE TYPE STRING,
ACTUALPLANDEVIATIONCOST TYPE STRING,
CUSTPROJWRKPCKGPLANCOST TYPE STRING,
CUSTPROJWRKPCKGPLANREVENUE TYPE STRING,
CUSTPROJWRKPCKGPLANEFFORTQTY TYPE STRING,
CUSTOMERPROJECTRESOURCETYPE TYPE STRING,
ENGMTPROJEMPLOYEEISSTAFFED TYPE STRING,
EMPLOYMENTINTERNALID TYPE STRING,
ENGAGEMENTPROJECTSERVICEORG TYPE STRING,
WORKITEM TYPE STRING,END OF T_EKKO_STR.
DATA: WA_I_CPWBSPLANDATA_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_I_CPWBSPLANDATA_STR-MANDT sy-vline 
WA_I_CPWBSPLANDATA_STR-WBSELEMENTOBJECT sy-vline 
WA_I_CPWBSPLANDATA_STR-ENGAGEMENTPROJFINPLANUUID sy-vline 
WA_I_CPWBSPLANDATA_STR-CUSTPROJWORKPACKAGEUUID sy-vline 
WA_I_CPWBSPLANDATA_STR-CUSTOMERPROJECTRESOURCE sy-vline 
WA_I_CPWBSPLANDATA_STR-CURRENCY sy-vline 
WA_I_CPWBSPLANDATA_STR-UNITOFMEASURE sy-vline 
WA_I_CPWBSPLANDATA_STR-ACTUALPLANDEVIATIONCOST sy-vline 
WA_I_CPWBSPLANDATA_STR-CUSTPROJWRKPCKGPLANCOST sy-vline 
WA_I_CPWBSPLANDATA_STR-CUSTPROJWRKPCKGPLANREVENUE sy-vline 
WA_I_CPWBSPLANDATA_STR-CUSTPROJWRKPCKGPLANEFFORTQTY sy-vline 
WA_I_CPWBSPLANDATA_STR-CUSTOMERPROJECTRESOURCETYPE sy-vline 
WA_I_CPWBSPLANDATA_STR-ENGMTPROJEMPLOYEEISSTAFFED sy-vline 
WA_I_CPWBSPLANDATA_STR-EMPLOYMENTINTERNALID sy-vline 
WA_I_CPWBSPLANDATA_STR-ENGAGEMENTPROJECTSERVICEORG sy-vline 
WA_I_CPWBSPLANDATA_STR-WORKITEM sy-vline      INTO ld_text SEPARATED BY SPACE.

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