ABAP Select data from SAP table CWUPCGROUP into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CWUPCGROUP
*  INTO TABLE @DATA(IT_CWUPCGROUP2).
*--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_CWUPCGROUP INDEX 1 INTO DATA(WA_CWUPCGROUP2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<CWUPCGROUP>-MANDT = 1.
<CWUPCGROUP>-CONTROLLINGAREA = 1.
<CWUPCGROUP>-PROFITCENTERGROUP = 1.
<CWUPCGROUP>-PROFITCENTER = 1.
<CWUPCGROUP>-VALIDITYENDDATE = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CWUPCGROUP-PROFITCENTERSTANDARDHIERARCHY, sy-vline,
  WA_CWUPCGROUP-CHILDSETID, sy-vline,
  WA_CWUPCGROUP-PROFITCENTERNAME, sy-vline,
  WA_CWUPCGROUP-PROFITCENTERGROUPNAME, sy-vline,
  WA_CWUPCGROUP-CONTROLLINGAREANAME, sy-vline,
  WA_CWUPCGROUP-CREATEDBYUSER, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CWUPCGROUP 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_CWUPCGROUP 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_CWUPCGROUP INTO WA_CWUPCGROUP.


*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 ALPHA, internal->external for field PROFITCENTER
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_CWUPCGROUP-PROFITCENTER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CWUPCGROUP-PROFITCENTER.
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_CWUPCGROUP_STR, 
MANDT TYPE STRING,
CONTROLLINGAREA TYPE STRING,
PROFITCENTERGROUP TYPE STRING,
PROFITCENTER TYPE STRING,
VALIDITYENDDATE TYPE STRING,
PROFITCENTERSTANDARDHIERARCHY TYPE STRING,
CHILDSETID TYPE STRING,
PROFITCENTERNAME TYPE STRING,
PROFITCENTERGROUPNAME TYPE STRING,
CONTROLLINGAREANAME TYPE STRING,
CREATEDBYUSER TYPE STRING,
LASTCHANGEDBYUSER TYPE STRING,
CREATIONDATE TYPE STRING,
CREATIONTIME TYPE STRING,
LASTCHANGEDDATE TYPE STRING,
LASTCHANGETIME TYPE STRING,
VALIDITYSTARTDATE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CWUPCGROUP_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_CWUPCGROUP_STR-MANDT sy-vline 
WA_CWUPCGROUP_STR-CONTROLLINGAREA sy-vline 
WA_CWUPCGROUP_STR-PROFITCENTERGROUP sy-vline 
WA_CWUPCGROUP_STR-PROFITCENTER sy-vline 
WA_CWUPCGROUP_STR-VALIDITYENDDATE sy-vline 
WA_CWUPCGROUP_STR-PROFITCENTERSTANDARDHIERARCHY sy-vline 
WA_CWUPCGROUP_STR-CHILDSETID sy-vline 
WA_CWUPCGROUP_STR-PROFITCENTERNAME sy-vline 
WA_CWUPCGROUP_STR-PROFITCENTERGROUPNAME sy-vline 
WA_CWUPCGROUP_STR-CONTROLLINGAREANAME sy-vline 
WA_CWUPCGROUP_STR-CREATEDBYUSER sy-vline 
WA_CWUPCGROUP_STR-LASTCHANGEDBYUSER sy-vline 
WA_CWUPCGROUP_STR-CREATIONDATE sy-vline 
WA_CWUPCGROUP_STR-CREATIONTIME sy-vline 
WA_CWUPCGROUP_STR-LASTCHANGEDDATE sy-vline 
WA_CWUPCGROUP_STR-LASTCHANGETIME sy-vline 
WA_CWUPCGROUP_STR-VALIDITYSTARTDATE sy-vline      INTO ld_text SEPARATED BY SPACE.

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