ABAP Select data from SAP table WRS_PRICING_FEEDER into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM WRS_PRICING_FEEDER
*  INTO TABLE @DATA(IT_WRS_PRICING_FEEDER2).
*--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_WRS_PRICING_FEEDER INDEX 1 INTO DATA(WA_WRS_PRICING_FEEDER2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<WRS_PRICING_FEEDER>-KAPPL = 1.
<WRS_PRICING_FEEDER>-KSCHL = 1.
<WRS_PRICING_FEEDER>-VTEXT = 1.
<WRS_PRICING_FEEDER>-EKORG = 1.
<WRS_PRICING_FEEDER>-MATNR = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_WRS_PRICING_FEEDER-MAKTX, sy-vline,
  WA_WRS_PRICING_FEEDER-IDNLF, sy-vline,
  WA_WRS_PRICING_FEEDER-KBETR, sy-vline,
  WA_WRS_PRICING_FEEDER-KPEIN, sy-vline,
  WA_WRS_PRICING_FEEDER-KMEIN, sy-vline,
  WA_WRS_PRICING_FEEDER-ESOKZ, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_WRS_PRICING_FEEDER 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_WRS_PRICING_FEEDER 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_WRS_PRICING_FEEDER INTO WA_WRS_PRICING_FEEDER.


*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 MATNR
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_WRS_PRICING_FEEDER-MATNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_WRS_PRICING_FEEDER-MATNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field KMEIN
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_WRS_PRICING_FEEDER-KMEIN
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_WRS_PRICING_FEEDER-KMEIN.
WRITE:/ 'New Value:', ld_input.

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

*Conversion exit CUNIT, internal->external for field MEINS
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_WRS_PRICING_FEEDER-MEINS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_WRS_PRICING_FEEDER-MEINS.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field VRKME
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_WRS_PRICING_FEEDER-VRKME
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_WRS_PRICING_FEEDER-VRKME.
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_WRS_PRICING_FEEDER_STR, 
KAPPL TYPE STRING,
KSCHL TYPE STRING,
VTEXT TYPE STRING,
EKORG TYPE STRING,
MATNR TYPE STRING,
MAKTX TYPE STRING,
IDNLF TYPE STRING,
KBETR TYPE STRING,
KPEIN TYPE STRING,
KMEIN TYPE STRING,
ESOKZ TYPE STRING,
LIFNR TYPE STRING,
NAME1 TYPE STRING,
RELIF TYPE STRING,
MATKL TYPE STRING,
WGLIF TYPE STRING,
ATTYP TYPE STRING,
WERKS TYPE STRING,
BWSCL TYPE STRING,
MEINS TYPE STRING,
MSTAE TYPE STRING,
MSTAV TYPE STRING,
MSTDE TYPE STRING,
MSTDV TYPE STRING,
KONWS TYPE STRING,
DATAB TYPE STRING,
DATBI TYPE STRING,
LOEVM_KO TYPE STRING,
KOSTKZ TYPE STRING,
PLTYP TYPE STRING,
VRKME TYPE STRING,
VKORG TYPE STRING,
VTWEG TYPE STRING,
KRECH TYPE STRING,
KNUMH TYPE STRING,END OF T_EKKO_STR.
DATA: WA_WRS_PRICING_FEEDER_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_WRS_PRICING_FEEDER_STR-KAPPL sy-vline 
WA_WRS_PRICING_FEEDER_STR-KSCHL sy-vline 
WA_WRS_PRICING_FEEDER_STR-VTEXT sy-vline 
WA_WRS_PRICING_FEEDER_STR-EKORG sy-vline 
WA_WRS_PRICING_FEEDER_STR-MATNR sy-vline 
WA_WRS_PRICING_FEEDER_STR-MAKTX sy-vline 
WA_WRS_PRICING_FEEDER_STR-IDNLF sy-vline 
WA_WRS_PRICING_FEEDER_STR-KBETR sy-vline 
WA_WRS_PRICING_FEEDER_STR-KPEIN sy-vline 
WA_WRS_PRICING_FEEDER_STR-KMEIN sy-vline 
WA_WRS_PRICING_FEEDER_STR-ESOKZ sy-vline 
WA_WRS_PRICING_FEEDER_STR-LIFNR sy-vline 
WA_WRS_PRICING_FEEDER_STR-NAME1 sy-vline 
WA_WRS_PRICING_FEEDER_STR-RELIF sy-vline 
WA_WRS_PRICING_FEEDER_STR-MATKL sy-vline 
WA_WRS_PRICING_FEEDER_STR-WGLIF sy-vline 
WA_WRS_PRICING_FEEDER_STR-ATTYP sy-vline 
WA_WRS_PRICING_FEEDER_STR-WERKS sy-vline 
WA_WRS_PRICING_FEEDER_STR-BWSCL sy-vline 
WA_WRS_PRICING_FEEDER_STR-MEINS sy-vline 
WA_WRS_PRICING_FEEDER_STR-MSTAE sy-vline 
WA_WRS_PRICING_FEEDER_STR-MSTAV sy-vline 
WA_WRS_PRICING_FEEDER_STR-MSTDE sy-vline 
WA_WRS_PRICING_FEEDER_STR-MSTDV sy-vline 
WA_WRS_PRICING_FEEDER_STR-KONWS sy-vline 
WA_WRS_PRICING_FEEDER_STR-DATAB sy-vline 
WA_WRS_PRICING_FEEDER_STR-DATBI sy-vline 
WA_WRS_PRICING_FEEDER_STR-LOEVM_KO sy-vline 
WA_WRS_PRICING_FEEDER_STR-KOSTKZ sy-vline 
WA_WRS_PRICING_FEEDER_STR-PLTYP sy-vline 
WA_WRS_PRICING_FEEDER_STR-VRKME sy-vline 
WA_WRS_PRICING_FEEDER_STR-VKORG sy-vline 
WA_WRS_PRICING_FEEDER_STR-VTWEG sy-vline 
WA_WRS_PRICING_FEEDER_STR-KRECH sy-vline 
WA_WRS_PRICING_FEEDER_STR-KNUMH sy-vline      INTO ld_text SEPARATED BY SPACE.

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