ABAP Select data from SAP table POCRROOTWBS into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM POCRROOTWBS
*  INTO TABLE @DATA(IT_POCRROOTWBS2).
*--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_POCRROOTWBS INDEX 1 INTO DATA(WA_POCRROOTWBS2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<POCRROOTWBS>-MANDT = 1.
<POCRROOTWBS>-ORGANIZATIONALCHANGE = 1.
<POCRROOTWBS>-WBSELEMENTINTERNALID = 1.
<POCRROOTWBS>-VALIDITYSTARTDATE = 1.
<POCRROOTWBS>-WBSELEMENT = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_POCRROOTWBS-ORGLCHGRPTNODEDESCRIPTION, sy-vline,
  WA_POCRROOTWBS-VALIDITYENDDATE, sy-vline,
  WA_POCRROOTWBS-CONTROLLINGAREA, sy-vline,
  WA_POCRROOTWBS-CONTROLLINGAREANAME, sy-vline,
  WA_POCRROOTWBS-COMPANYCODE, sy-vline,
  WA_POCRROOTWBS-COMPANYCODENAME, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_POCRROOTWBS 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_POCRROOTWBS 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_POCRROOTWBS INTO WA_POCRROOTWBS.


*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 ABPSN, internal->external for field WBSELEMENT
CALL FUNCTION 'CONVERSION_EXIT_ABPSN_OUTPUT'
  EXPORTING
    input =                      WA_POCRROOTWBS-WBSELEMENT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_POCRROOTWBS-WBSELEMENT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ABPSN, internal->external for field ORGLCHGRPTNODEDESCRIPTION
CALL FUNCTION 'CONVERSION_EXIT_ABPSN_OUTPUT'
  EXPORTING
    input =                      WA_POCRROOTWBS-ORGLCHGRPTNODEDESCRIPTION
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_POCRROOTWBS-ORGLCHGRPTNODEDESCRIPTION.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field PROFITCENTERBEFOREORGLCHANGE
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_POCRROOTWBS-PROFITCENTERBEFOREORGLCHANGE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_POCRROOTWBS-PROFITCENTERBEFOREORGLCHANGE.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field PROFITCENTER
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_POCRROOTWBS-PROFITCENTER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_POCRROOTWBS-PROFITCENTER.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ABPSP, internal->external for field SOURCEWBSELEMENTINTERNALID
CALL FUNCTION 'CONVERSION_EXIT_ABPSP_OUTPUT'
  EXPORTING
    input =                      WA_POCRROOTWBS-SOURCEWBSELEMENTINTERNALID
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_POCRROOTWBS-SOURCEWBSELEMENTINTERNALID.
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_POCRROOTWBS_STR, 
MANDT TYPE STRING,
ORGANIZATIONALCHANGE TYPE STRING,
WBSELEMENTINTERNALID TYPE STRING,
VALIDITYSTARTDATE TYPE STRING,
WBSELEMENT TYPE STRING,
ORGLCHGRPTNODEDESCRIPTION TYPE STRING,
VALIDITYENDDATE TYPE STRING,
CONTROLLINGAREA TYPE STRING,
CONTROLLINGAREANAME TYPE STRING,
COMPANYCODE TYPE STRING,
COMPANYCODENAME TYPE STRING,
PROFITCENTERBEFOREORGLCHANGE TYPE STRING,
PROFITCENTERBFRORGLCHANGENAME TYPE STRING,
PROFITCENTER TYPE STRING,
PROFITCENTERNAME TYPE STRING,
ORGLCHANGEREASSIGNMENTSTATUS TYPE STRING,
ORGLCHGREASSIGNMENTSTATUSNAME TYPE STRING,
PROFITCENTERDERIVATIONSRCETYPE TYPE STRING,
SOURCEWBSELEMENTINTERNALID TYPE STRING,
SEMANTICOBJECT TYPE STRING,
ORGLCHGRPTROOTOBJECTTYPE TYPE STRING,
ROOTOBJECTID TYPE STRING,END OF T_EKKO_STR.
DATA: WA_POCRROOTWBS_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_POCRROOTWBS_STR-MANDT sy-vline 
WA_POCRROOTWBS_STR-ORGANIZATIONALCHANGE sy-vline 
WA_POCRROOTWBS_STR-WBSELEMENTINTERNALID sy-vline 
WA_POCRROOTWBS_STR-VALIDITYSTARTDATE sy-vline 
WA_POCRROOTWBS_STR-WBSELEMENT sy-vline 
WA_POCRROOTWBS_STR-ORGLCHGRPTNODEDESCRIPTION sy-vline 
WA_POCRROOTWBS_STR-VALIDITYENDDATE sy-vline 
WA_POCRROOTWBS_STR-CONTROLLINGAREA sy-vline 
WA_POCRROOTWBS_STR-CONTROLLINGAREANAME sy-vline 
WA_POCRROOTWBS_STR-COMPANYCODE sy-vline 
WA_POCRROOTWBS_STR-COMPANYCODENAME sy-vline 
WA_POCRROOTWBS_STR-PROFITCENTERBEFOREORGLCHANGE sy-vline 
WA_POCRROOTWBS_STR-PROFITCENTERBFRORGLCHANGENAME sy-vline 
WA_POCRROOTWBS_STR-PROFITCENTER sy-vline 
WA_POCRROOTWBS_STR-PROFITCENTERNAME sy-vline 
WA_POCRROOTWBS_STR-ORGLCHANGEREASSIGNMENTSTATUS sy-vline 
WA_POCRROOTWBS_STR-ORGLCHGREASSIGNMENTSTATUSNAME sy-vline 
WA_POCRROOTWBS_STR-PROFITCENTERDERIVATIONSRCETYPE sy-vline 
WA_POCRROOTWBS_STR-SOURCEWBSELEMENTINTERNALID sy-vline 
WA_POCRROOTWBS_STR-SEMANTICOBJECT sy-vline 
WA_POCRROOTWBS_STR-ORGLCHGRPTROOTOBJECTTYPE sy-vline 
WA_POCRROOTWBS_STR-ROOTOBJECTID sy-vline      INTO ld_text SEPARATED BY SPACE.

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