ABAP Select data from SAP table SWX_EPMPROD into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM SWX_EPMPROD
*  INTO TABLE @DATA(IT_SWX_EPMPROD2).
*--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_SWX_EPMPROD INDEX 1 INTO DATA(WA_SWX_EPMPROD2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<SWX_EPMPROD>-MANDT = 1.
<SWX_EPMPROD>-PRODUCT = 1.
<SWX_EPMPROD>-PRODUCTTYPE = 1.
<SWX_EPMPROD>-PRODUCTCATEGORY = 1.
<SWX_EPMPROD>-MAINPRODUCTCATEGORY = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_SWX_EPMPROD-CREATIONDATETIME, sy-vline,
  WA_SWX_EPMPROD-LASTCHANGEDDATETIME, sy-vline,
  WA_SWX_EPMPROD-PRICE, sy-vline,
  WA_SWX_EPMPROD-CURRENCY, sy-vline,
  WA_SWX_EPMPROD-HEIGHT, sy-vline,
  WA_SWX_EPMPROD-WIDTH, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_SWX_EPMPROD 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_SWX_EPMPROD 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_SWX_EPMPROD INTO WA_SWX_EPMPROD.


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

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

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

*Conversion exit CUNIT, internal->external for field WEIGHTUNIT
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_SWX_EPMPROD-WEIGHTUNIT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_SWX_EPMPROD-WEIGHTUNIT.
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_SWX_EPMPROD_STR, 
MANDT TYPE STRING,
PRODUCT TYPE STRING,
PRODUCTTYPE TYPE STRING,
PRODUCTCATEGORY TYPE STRING,
MAINPRODUCTCATEGORY TYPE STRING,
CREATIONDATETIME TYPE STRING,
LASTCHANGEDDATETIME TYPE STRING,
PRICE TYPE STRING,
CURRENCY TYPE STRING,
HEIGHT TYPE STRING,
WIDTH TYPE STRING,
DEPTH TYPE STRING,
DIMENSIONUNIT TYPE STRING,
PRODUCTPICTUREURL TYPE STRING,
PRODUCTVALUEADDEDTAX TYPE STRING,
SUPPLIER TYPE STRING,
PRODUCTBASEUNIT TYPE STRING,
WEIGHT TYPE STRING,
WEIGHTUNIT TYPE STRING,
CREATEDBYUSER TYPE STRING,
LASTCHANGEDBYUSER TYPE STRING,
PRODUCTNAMEGROUPUUID TYPE STRING,
PRODUCTDESCRIPTIONGROUPUUID TYPE STRING,END OF T_EKKO_STR.
DATA: WA_SWX_EPMPROD_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_SWX_EPMPROD_STR-MANDT sy-vline 
WA_SWX_EPMPROD_STR-PRODUCT sy-vline 
WA_SWX_EPMPROD_STR-PRODUCTTYPE sy-vline 
WA_SWX_EPMPROD_STR-PRODUCTCATEGORY sy-vline 
WA_SWX_EPMPROD_STR-MAINPRODUCTCATEGORY sy-vline 
WA_SWX_EPMPROD_STR-CREATIONDATETIME sy-vline 
WA_SWX_EPMPROD_STR-LASTCHANGEDDATETIME sy-vline 
WA_SWX_EPMPROD_STR-PRICE sy-vline 
WA_SWX_EPMPROD_STR-CURRENCY sy-vline 
WA_SWX_EPMPROD_STR-HEIGHT sy-vline 
WA_SWX_EPMPROD_STR-WIDTH sy-vline 
WA_SWX_EPMPROD_STR-DEPTH sy-vline 
WA_SWX_EPMPROD_STR-DIMENSIONUNIT sy-vline 
WA_SWX_EPMPROD_STR-PRODUCTPICTUREURL sy-vline 
WA_SWX_EPMPROD_STR-PRODUCTVALUEADDEDTAX sy-vline 
WA_SWX_EPMPROD_STR-SUPPLIER sy-vline 
WA_SWX_EPMPROD_STR-PRODUCTBASEUNIT sy-vline 
WA_SWX_EPMPROD_STR-WEIGHT sy-vline 
WA_SWX_EPMPROD_STR-WEIGHTUNIT sy-vline 
WA_SWX_EPMPROD_STR-CREATEDBYUSER sy-vline 
WA_SWX_EPMPROD_STR-LASTCHANGEDBYUSER sy-vline 
WA_SWX_EPMPROD_STR-PRODUCTNAMEGROUPUUID sy-vline 
WA_SWX_EPMPROD_STR-PRODUCTDESCRIPTIONGROUPUUID sy-vline      INTO ld_text SEPARATED BY SPACE.

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