ABAP Select data from SAP table EHPRCS_CW_PROD_STRU into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM EHPRCS_CW_PROD_STRU
*  INTO TABLE @DATA(IT_EHPRCS_CW_PROD_STRU2).
*--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_EHPRCS_CW_PROD_STRU INDEX 1 INTO DATA(WA_EHPRCS_CW_PROD_STRU2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<EHPRCS_CW_PROD_STRU>-KEY = 1.
<EHPRCS_CW_PROD_STRU>-PARENT_KEY = 1.
<EHPRCS_CW_PROD_STRU>-DESCRIPTION = 1.
<EHPRCS_CW_PROD_STRU>-ICON = 1.
<EHPRCS_CW_PROD_STRU>-EXPANDED = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_EHPRCS_CW_PROD_STRU-CHILD_LOAD, sy-vline,
  WA_EHPRCS_CW_PROD_STRU-IS_LEAF, sy-vline,
  WA_EHPRCS_CW_PROD_STRU-PREF_ICON, sy-vline,
  WA_EHPRCS_CW_PROD_STRU-CDO_ROOT_KEY, sy-vline,
  WA_EHPRCS_CW_PROD_STRU-CDO_REQR_KEY, sy-vline,
  WA_EHPRCS_CW_PROD_STRU-CDO_CHKR_KEY, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_EHPRCS_CW_PROD_STRU 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_EHPRCS_CW_PROD_STRU 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_EHPRCS_CW_PROD_STRU INTO WA_EHPRCS_CW_PROD_STRU.


*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 SPEC1, internal->external for field SUBID
CALL FUNCTION 'CONVERSION_EXIT_SPEC1_OUTPUT'
  EXPORTING
    input =                      WA_EHPRCS_CW_PROD_STRU-SUBID
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_EHPRCS_CW_PROD_STRU-SUBID.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field RECN
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_EHPRCS_CW_PROD_STRU-RECN
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_EHPRCS_CW_PROD_STRU-RECN.
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_EHPRCS_CW_PROD_STRU_STR, 
KEY TYPE STRING,
PARENT_KEY TYPE STRING,
DESCRIPTION TYPE STRING,
ICON TYPE STRING,
EXPANDED TYPE STRING,
CHILD_LOAD TYPE STRING,
IS_LEAF TYPE STRING,
PREF_ICON TYPE STRING,
CDO_ROOT_KEY TYPE STRING,
CDO_REQR_KEY TYPE STRING,
CDO_CHKR_KEY TYPE STRING,
SUBID TYPE STRING,
RECN TYPE STRING,
SUBCAT TYPE STRING,
CHK_ICON TYPE STRING,
COMP_GROUP TYPE STRING,
GROUP TYPE STRING,
PLANT TYPE STRING,
USAGE TYPE STRING,
ALTERNATE TYPE STRING,
SUPPLIER_LIST TYPE STRING,
CUSTOMER_LIST TYPE STRING,
CUSTOM TYPE STRING,
NODE_TYPE TYPE STRING,
PHAN_TYPE TYPE STRING,
PHAN_VALUE TYPE STRING,
ORD TYPE STRING,
CHECK_RESULT TYPE STRING,
CHK_RESULT_DESC TYPE STRING,
CHK_RESULT_DESC_ENABLED TYPE STRING,
MATCAT TYPE STRING,
CMPL_ICON TYPE STRING,
CMPL_STATUS_DESC TYPE STRING,
DECL_DESC TYPE STRING,
USEPROH_DESC TYPE STRING,
DECL_STATUS_DESC TYPE STRING,
REV_STATUS_DESC TYPE STRING,
REMARK TYPE STRING,
QUANT_DESC TYPE STRING,
EXTERNAL_IND TYPE STRING,
SUPP_PART_IND TYPE STRING,
COMPCAT TYPE STRING,
ERROR_IND TYPE STRING,END OF T_EKKO_STR.
DATA: WA_EHPRCS_CW_PROD_STRU_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_EHPRCS_CW_PROD_STRU_STR-KEY sy-vline 
WA_EHPRCS_CW_PROD_STRU_STR-PARENT_KEY sy-vline 
WA_EHPRCS_CW_PROD_STRU_STR-DESCRIPTION sy-vline 
WA_EHPRCS_CW_PROD_STRU_STR-ICON sy-vline 
WA_EHPRCS_CW_PROD_STRU_STR-EXPANDED sy-vline 
WA_EHPRCS_CW_PROD_STRU_STR-CHILD_LOAD sy-vline 
WA_EHPRCS_CW_PROD_STRU_STR-IS_LEAF sy-vline 
WA_EHPRCS_CW_PROD_STRU_STR-PREF_ICON sy-vline 
WA_EHPRCS_CW_PROD_STRU_STR-CDO_ROOT_KEY sy-vline 
WA_EHPRCS_CW_PROD_STRU_STR-CDO_REQR_KEY sy-vline 
WA_EHPRCS_CW_PROD_STRU_STR-CDO_CHKR_KEY sy-vline 
WA_EHPRCS_CW_PROD_STRU_STR-SUBID sy-vline 
WA_EHPRCS_CW_PROD_STRU_STR-RECN sy-vline 
WA_EHPRCS_CW_PROD_STRU_STR-SUBCAT sy-vline 
WA_EHPRCS_CW_PROD_STRU_STR-CHK_ICON sy-vline 
WA_EHPRCS_CW_PROD_STRU_STR-COMP_GROUP sy-vline 
WA_EHPRCS_CW_PROD_STRU_STR-GROUP sy-vline 
WA_EHPRCS_CW_PROD_STRU_STR-PLANT sy-vline 
WA_EHPRCS_CW_PROD_STRU_STR-USAGE sy-vline 
WA_EHPRCS_CW_PROD_STRU_STR-ALTERNATE sy-vline 
WA_EHPRCS_CW_PROD_STRU_STR-SUPPLIER_LIST sy-vline 
WA_EHPRCS_CW_PROD_STRU_STR-CUSTOMER_LIST sy-vline 
WA_EHPRCS_CW_PROD_STRU_STR-CUSTOM sy-vline 
WA_EHPRCS_CW_PROD_STRU_STR-NODE_TYPE sy-vline 
WA_EHPRCS_CW_PROD_STRU_STR-PHAN_TYPE sy-vline 
WA_EHPRCS_CW_PROD_STRU_STR-PHAN_VALUE sy-vline 
WA_EHPRCS_CW_PROD_STRU_STR-ORD sy-vline 
WA_EHPRCS_CW_PROD_STRU_STR-CHECK_RESULT sy-vline 
WA_EHPRCS_CW_PROD_STRU_STR-CHK_RESULT_DESC sy-vline 
WA_EHPRCS_CW_PROD_STRU_STR-CHK_RESULT_DESC_ENABLED sy-vline 
WA_EHPRCS_CW_PROD_STRU_STR-MATCAT sy-vline 
WA_EHPRCS_CW_PROD_STRU_STR-CMPL_ICON sy-vline 
WA_EHPRCS_CW_PROD_STRU_STR-CMPL_STATUS_DESC sy-vline 
WA_EHPRCS_CW_PROD_STRU_STR-DECL_DESC sy-vline 
WA_EHPRCS_CW_PROD_STRU_STR-USEPROH_DESC sy-vline 
WA_EHPRCS_CW_PROD_STRU_STR-DECL_STATUS_DESC sy-vline 
WA_EHPRCS_CW_PROD_STRU_STR-REV_STATUS_DESC sy-vline 
WA_EHPRCS_CW_PROD_STRU_STR-REMARK sy-vline 
WA_EHPRCS_CW_PROD_STRU_STR-QUANT_DESC sy-vline 
WA_EHPRCS_CW_PROD_STRU_STR-EXTERNAL_IND sy-vline 
WA_EHPRCS_CW_PROD_STRU_STR-SUPP_PART_IND sy-vline 
WA_EHPRCS_CW_PROD_STRU_STR-COMPCAT sy-vline 
WA_EHPRCS_CW_PROD_STRU_STR-ERROR_IND sy-vline      INTO ld_text SEPARATED BY SPACE.

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