ABAP Select data from SAP table PORDER_REF into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PORDER_REF
*  INTO TABLE @DATA(IT_PORDER_REF2).
*--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_PORDER_REF INDEX 1 INTO DATA(WA_PORDER_REF2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<PORDER_REF>-REFBS = 1.
<PORDER_REF>-REFPS = 1.
<PORDER_REF>-LIFNR = 1.
<PORDER_REF>-EMATN = 1.
<PORDER_REF>-INFNR = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PORDER_REF-EKORG, sy-vline,
  WA_PORDER_REF-WERKS, sy-vline,
  WA_PORDER_REF-ANFNR, sy-vline,
  WA_PORDER_REF-ANFPS, sy-vline,
  WA_PORDER_REF-KONNR, sy-vline,
  WA_PORDER_REF-KTPNR, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_PORDER_REF 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_PORDER_REF 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_PORDER_REF INTO WA_PORDER_REF.


*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 REFBS
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_PORDER_REF-REFBS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PORDER_REF-REFBS.
WRITE:/ 'New Value:', ld_input.

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

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

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

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

*Conversion exit ALPHA, internal->external for field KONNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_PORDER_REF-KONNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PORDER_REF-KONNR.
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_PORDER_REF_STR, 
REFBS TYPE STRING,
REFPS TYPE STRING,
LIFNR TYPE STRING,
EMATN TYPE STRING,
INFNR TYPE STRING,
EKORG TYPE STRING,
WERKS TYPE STRING,
ANFNR TYPE STRING,
ANFPS TYPE STRING,
KONNR TYPE STRING,
KTPNR TYPE STRING,END OF T_EKKO_STR.
DATA: WA_PORDER_REF_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_PORDER_REF_STR-REFBS sy-vline 
WA_PORDER_REF_STR-REFPS sy-vline 
WA_PORDER_REF_STR-LIFNR sy-vline 
WA_PORDER_REF_STR-EMATN sy-vline 
WA_PORDER_REF_STR-INFNR sy-vline 
WA_PORDER_REF_STR-EKORG sy-vline 
WA_PORDER_REF_STR-WERKS sy-vline 
WA_PORDER_REF_STR-ANFNR sy-vline 
WA_PORDER_REF_STR-ANFPS sy-vline 
WA_PORDER_REF_STR-KONNR sy-vline 
WA_PORDER_REF_STR-KTPNR sy-vline      INTO ld_text SEPARATED BY SPACE.

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