ABAP Select data from SAP table EHPRCS_COD_STRUCT_DT into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP EHPRCS_COD_STRUCT_DT 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_COD_STRUCT_DT. 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_COD_STRUCT_DT 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_COD_STRUCT_DT TYPE STANDARD TABLE OF EHPRCS_COD_STRUCT_DT,
      WA_EHPRCS_COD_STRUCT_DT TYPE EHPRCS_COD_STRUCT_DT,
      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_COD_STRUCT_DT> TYPE EHPRCS_COD_STRUCT_DT.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM EHPRCS_COD_STRUCT_DT
*  INTO TABLE @DATA(IT_EHPRCS_COD_STRUCT_DT2).
*--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_COD_STRUCT_DT INDEX 1 INTO DATA(WA_EHPRCS_COD_STRUCT_DT2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<EHPRCS_COD_STRUCT_DT>-REF_ROOT_KEY = 1.
<EHPRCS_COD_STRUCT_DT>-REF_PARENT_KEY = 1.
<EHPRCS_COD_STRUCT_DT>-IS_LEAF = 1.
<EHPRCS_COD_STRUCT_DT>-COMP_GROUP = 1.
<EHPRCS_COD_STRUCT_DT>-GROUP = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_EHPRCS_COD_STRUCT_DT-COMP_ESTCAT, sy-vline,
  WA_EHPRCS_COD_STRUCT_DT-PLANT, sy-vline,
  WA_EHPRCS_COD_STRUCT_DT-USAGE, sy-vline,
  WA_EHPRCS_COD_STRUCT_DT-ALTERNATE, sy-vline,
  WA_EHPRCS_COD_STRUCT_DT-SUPPLIER_LIST, sy-vline,
  WA_EHPRCS_COD_STRUCT_DT-CUSTOMER_LIST, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_EHPRCS_COD_STRUCT_DT 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_COD_STRUCT_DT 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_COD_STRUCT_DT INTO WA_EHPRCS_COD_STRUCT_DT.


*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_COD_STRUCT_DT-SUBID
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_EHPRCS_COD_STRUCT_DT-SUBID.
WRITE:/ 'New Value:', ld_input.

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

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

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

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

*Conversion exit CUNIT, internal->external for field QUANT_UNIT
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_EHPRCS_COD_STRUCT_DT-QUANT_UNIT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_EHPRCS_COD_STRUCT_DT-QUANT_UNIT.
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_COD_STRUCT_DT_STR, 
REF_ROOT_KEY TYPE STRING,
REF_PARENT_KEY TYPE STRING,
IS_LEAF TYPE STRING,
COMP_GROUP TYPE STRING,
GROUP TYPE STRING,
COMP_ESTCAT 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,
ORD TYPE STRING,
CHECK_RESULT TYPE STRING,
CHK_RESULT_DESC TYPE STRING,
IMG_SRC TYPE STRING,
DESCRIPTION TYPE STRING,
EXTERNAL TYPE STRING,
GENERATED_IND TYPE STRING,
AMPL_HEAD_IND TYPE STRING,
MULT_SUPPL_IND TYPE STRING,
PREFERRED TYPE STRING,
BLOCKED_IND TYPE STRING,
REF_BOS_KEY TYPE STRING,
MATCAT TYPE STRING,
SUBCAT TYPE STRING,
REF_SUPPLIST_KEY TYPE STRING,
SUBID TYPE STRING,
RECNVP TYPE STRING,
ACTNVP TYPE STRING,
RECNVA TYPE STRING,
ACTNVA TYPE STRING,
ID TYPE STRING,
LEAD_MARK_IND TYPE STRING,
MARK_IND TYPE STRING,
QUANT_LOW TYPE STRING,
QUANT_AVG TYPE STRING,
PRECU TYPE STRING,
QUANT_UPP TYPE STRING,
QUANT_EXCEPT TYPE STRING,
QUANT_UNIT TYPE STRING,
QUANTLOWDEC TYPE STRING,
QUANTAVGDEC TYPE STRING,
QUANTUPPDEC TYPE STRING,
REF_CHK_RES_KEY TYPE STRING,
OWN_COMP_GROUP TYPE STRING,
REF_BASMAT_KEY TYPE STRING,
REF_ROOT_REV_KEY TYPE STRING,
REF_REV_VALID TYPE STRING,
IS_LOAD_FROM_XML TYPE STRING,
LEVEL TYPE STRING,
EEW_COD_STRUCT_DT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_EHPRCS_COD_STRUCT_DT_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_COD_STRUCT_DT_STR-REF_ROOT_KEY sy-vline 
WA_EHPRCS_COD_STRUCT_DT_STR-REF_PARENT_KEY sy-vline 
WA_EHPRCS_COD_STRUCT_DT_STR-IS_LEAF sy-vline 
WA_EHPRCS_COD_STRUCT_DT_STR-COMP_GROUP sy-vline 
WA_EHPRCS_COD_STRUCT_DT_STR-GROUP sy-vline 
WA_EHPRCS_COD_STRUCT_DT_STR-COMP_ESTCAT sy-vline 
WA_EHPRCS_COD_STRUCT_DT_STR-PLANT sy-vline 
WA_EHPRCS_COD_STRUCT_DT_STR-USAGE sy-vline 
WA_EHPRCS_COD_STRUCT_DT_STR-ALTERNATE sy-vline 
WA_EHPRCS_COD_STRUCT_DT_STR-SUPPLIER_LIST sy-vline 
WA_EHPRCS_COD_STRUCT_DT_STR-CUSTOMER_LIST sy-vline 
WA_EHPRCS_COD_STRUCT_DT_STR-CUSTOM sy-vline 
WA_EHPRCS_COD_STRUCT_DT_STR-NODE_TYPE sy-vline 
WA_EHPRCS_COD_STRUCT_DT_STR-PHAN_TYPE sy-vline 
WA_EHPRCS_COD_STRUCT_DT_STR-ORD sy-vline 
WA_EHPRCS_COD_STRUCT_DT_STR-CHECK_RESULT sy-vline 
WA_EHPRCS_COD_STRUCT_DT_STR-CHK_RESULT_DESC sy-vline 
WA_EHPRCS_COD_STRUCT_DT_STR-IMG_SRC sy-vline 
WA_EHPRCS_COD_STRUCT_DT_STR-DESCRIPTION sy-vline 
WA_EHPRCS_COD_STRUCT_DT_STR-EXTERNAL sy-vline 
WA_EHPRCS_COD_STRUCT_DT_STR-GENERATED_IND sy-vline 
WA_EHPRCS_COD_STRUCT_DT_STR-AMPL_HEAD_IND sy-vline 
WA_EHPRCS_COD_STRUCT_DT_STR-MULT_SUPPL_IND sy-vline 
WA_EHPRCS_COD_STRUCT_DT_STR-PREFERRED sy-vline 
WA_EHPRCS_COD_STRUCT_DT_STR-BLOCKED_IND sy-vline 
WA_EHPRCS_COD_STRUCT_DT_STR-REF_BOS_KEY sy-vline 
WA_EHPRCS_COD_STRUCT_DT_STR-MATCAT sy-vline 
WA_EHPRCS_COD_STRUCT_DT_STR-SUBCAT sy-vline 
WA_EHPRCS_COD_STRUCT_DT_STR-REF_SUPPLIST_KEY sy-vline 
WA_EHPRCS_COD_STRUCT_DT_STR-SUBID sy-vline 
WA_EHPRCS_COD_STRUCT_DT_STR-RECNVP sy-vline 
WA_EHPRCS_COD_STRUCT_DT_STR-ACTNVP sy-vline 
WA_EHPRCS_COD_STRUCT_DT_STR-RECNVA sy-vline 
WA_EHPRCS_COD_STRUCT_DT_STR-ACTNVA sy-vline 
WA_EHPRCS_COD_STRUCT_DT_STR-ID sy-vline 
WA_EHPRCS_COD_STRUCT_DT_STR-LEAD_MARK_IND sy-vline 
WA_EHPRCS_COD_STRUCT_DT_STR-MARK_IND sy-vline 
WA_EHPRCS_COD_STRUCT_DT_STR-QUANT_LOW sy-vline 
WA_EHPRCS_COD_STRUCT_DT_STR-QUANT_AVG sy-vline 
WA_EHPRCS_COD_STRUCT_DT_STR-PRECU sy-vline 
WA_EHPRCS_COD_STRUCT_DT_STR-QUANT_UPP sy-vline 
WA_EHPRCS_COD_STRUCT_DT_STR-QUANT_EXCEPT sy-vline 
WA_EHPRCS_COD_STRUCT_DT_STR-QUANT_UNIT sy-vline 
WA_EHPRCS_COD_STRUCT_DT_STR-QUANTLOWDEC sy-vline 
WA_EHPRCS_COD_STRUCT_DT_STR-QUANTAVGDEC sy-vline 
WA_EHPRCS_COD_STRUCT_DT_STR-QUANTUPPDEC sy-vline 
WA_EHPRCS_COD_STRUCT_DT_STR-REF_CHK_RES_KEY sy-vline 
WA_EHPRCS_COD_STRUCT_DT_STR-OWN_COMP_GROUP sy-vline 
WA_EHPRCS_COD_STRUCT_DT_STR-REF_BASMAT_KEY sy-vline 
WA_EHPRCS_COD_STRUCT_DT_STR-REF_ROOT_REV_KEY sy-vline 
WA_EHPRCS_COD_STRUCT_DT_STR-REF_REV_VALID sy-vline 
WA_EHPRCS_COD_STRUCT_DT_STR-IS_LOAD_FROM_XML sy-vline 
WA_EHPRCS_COD_STRUCT_DT_STR-LEVEL sy-vline 
WA_EHPRCS_COD_STRUCT_DT_STR-EEW_COD_STRUCT_DT sy-vline      INTO ld_text SEPARATED BY SPACE.

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