ABAP Select data from SAP table POCRROOTPROD into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM POCRROOTPROD
*  INTO TABLE @DATA(IT_POCRROOTPROD2).
*--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_POCRROOTPROD INDEX 1 INTO DATA(WA_POCRROOTPROD2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<POCRROOTPROD>-MANDT = 1.
<POCRROOTPROD>-ORGANIZATIONALCHANGE = 1.
<POCRROOTPROD>-PRODUCT = 1.
<POCRROOTPROD>-PLANT = 1.
<POCRROOTPROD>-VALIDITYSTARTDATE = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_POCRROOTPROD-ORGLCHGRPTROOTOBJECTTYPE, sy-vline,
  WA_POCRROOTPROD-ROOTOBJECTID, sy-vline,
  WA_POCRROOTPROD-SEMANTICOBJECT, sy-vline,
  WA_POCRROOTPROD-ORGLCHGRPTNODEDESCRIPTION, sy-vline,
  WA_POCRROOTPROD-VALIDITYENDDATE, sy-vline,
  WA_POCRROOTPROD-CONTROLLINGAREA, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_POCRROOTPROD 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_POCRROOTPROD 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_POCRROOTPROD INTO WA_POCRROOTPROD.


*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 MATN1, internal->external for field PRODUCT
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_POCRROOTPROD-PRODUCT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_POCRROOTPROD-PRODUCT.
WRITE:/ 'New Value:', ld_input.

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

*Conversion exit ALPHA, internal->external for field PROFITCENTER
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_POCRROOTPROD-PROFITCENTER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_POCRROOTPROD-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_POCRROOTPROD_STR, 
MANDT TYPE STRING,
ORGANIZATIONALCHANGE TYPE STRING,
PRODUCT TYPE STRING,
PLANT TYPE STRING,
VALIDITYSTARTDATE TYPE STRING,
ORGLCHGRPTROOTOBJECTTYPE TYPE STRING,
ROOTOBJECTID TYPE STRING,
SEMANTICOBJECT 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,
PLANTNAME TYPE STRING,
PRODUCTNAME TYPE STRING,
PRODUCTTYPE TYPE STRING,
PRODUCTGROUP TYPE STRING,
PRODUCTCATEGORY TYPE STRING,END OF T_EKKO_STR.
DATA: WA_POCRROOTPROD_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_POCRROOTPROD_STR-MANDT sy-vline 
WA_POCRROOTPROD_STR-ORGANIZATIONALCHANGE sy-vline 
WA_POCRROOTPROD_STR-PRODUCT sy-vline 
WA_POCRROOTPROD_STR-PLANT sy-vline 
WA_POCRROOTPROD_STR-VALIDITYSTARTDATE sy-vline 
WA_POCRROOTPROD_STR-ORGLCHGRPTROOTOBJECTTYPE sy-vline 
WA_POCRROOTPROD_STR-ROOTOBJECTID sy-vline 
WA_POCRROOTPROD_STR-SEMANTICOBJECT sy-vline 
WA_POCRROOTPROD_STR-ORGLCHGRPTNODEDESCRIPTION sy-vline 
WA_POCRROOTPROD_STR-VALIDITYENDDATE sy-vline 
WA_POCRROOTPROD_STR-CONTROLLINGAREA sy-vline 
WA_POCRROOTPROD_STR-CONTROLLINGAREANAME sy-vline 
WA_POCRROOTPROD_STR-COMPANYCODE sy-vline 
WA_POCRROOTPROD_STR-COMPANYCODENAME sy-vline 
WA_POCRROOTPROD_STR-PROFITCENTERBEFOREORGLCHANGE sy-vline 
WA_POCRROOTPROD_STR-PROFITCENTERBFRORGLCHANGENAME sy-vline 
WA_POCRROOTPROD_STR-PROFITCENTER sy-vline 
WA_POCRROOTPROD_STR-PROFITCENTERNAME sy-vline 
WA_POCRROOTPROD_STR-ORGLCHANGEREASSIGNMENTSTATUS sy-vline 
WA_POCRROOTPROD_STR-ORGLCHGREASSIGNMENTSTATUSNAME sy-vline 
WA_POCRROOTPROD_STR-PROFITCENTERDERIVATIONSRCETYPE sy-vline 
WA_POCRROOTPROD_STR-PLANTNAME sy-vline 
WA_POCRROOTPROD_STR-PRODUCTNAME sy-vline 
WA_POCRROOTPROD_STR-PRODUCTTYPE sy-vline 
WA_POCRROOTPROD_STR-PRODUCTGROUP sy-vline 
WA_POCRROOTPROD_STR-PRODUCTCATEGORY sy-vline      INTO ld_text SEPARATED BY SPACE.

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