ABAP Select data from SAP table EWUFIOPSEL into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM EWUFIOPSEL
*  INTO TABLE @DATA(IT_EWUFIOPSEL2).
*--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_EWUFIOPSEL INDEX 1 INTO DATA(WA_EWUFIOPSEL2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<EWUFIOPSEL>-KOART = 1.
<EWUFIOPSEL>-BUKRS = 1.
<EWUFIOPSEL>-HKONT = 1.
<EWUFIOPSEL>-KUNNR = 1.
<EWUFIOPSEL>-LIFNR = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_EWUFIOPSEL-GSBER, sy-vline,
  WA_EWUFIOPSEL-UMSKZ, sy-vline,
  WA_EWUFIOPSEL-PSWSL, sy-vline,
  WA_EWUFIOPSEL-SHKZG, sy-vline,
  WA_EWUFIOPSEL-PSWBT, sy-vline,
  WA_EWUFIOPSEL-DMBTR, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_EWUFIOPSEL 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_EWUFIOPSEL 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_EWUFIOPSEL INTO WA_EWUFIOPSEL.


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

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

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

*Conversion exit AU162, internal->external for field PSWBT
CALL FUNCTION 'CONVERSION_EXIT_AU162_OUTPUT'
  EXPORTING
    input =                      WA_EWUFIOPSEL-PSWBT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_EWUFIOPSEL-PSWBT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AU162, internal->external for field DMBTR
CALL FUNCTION 'CONVERSION_EXIT_AU162_OUTPUT'
  EXPORTING
    input =                      WA_EWUFIOPSEL-DMBTR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_EWUFIOPSEL-DMBTR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AU162, internal->external for field DMBE2
CALL FUNCTION 'CONVERSION_EXIT_AU162_OUTPUT'
  EXPORTING
    input =                      WA_EWUFIOPSEL-DMBE2
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_EWUFIOPSEL-DMBE2.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AU162, internal->external for field DMBE3
CALL FUNCTION 'CONVERSION_EXIT_AU162_OUTPUT'
  EXPORTING
    input =                      WA_EWUFIOPSEL-DMBE3
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_EWUFIOPSEL-DMBE3.
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_EWUFIOPSEL_STR, 
KOART TYPE STRING,
BUKRS TYPE STRING,
HKONT TYPE STRING,
KUNNR TYPE STRING,
LIFNR TYPE STRING,
GSBER TYPE STRING,
UMSKZ TYPE STRING,
PSWSL TYPE STRING,
SHKZG TYPE STRING,
PSWBT TYPE STRING,
DMBTR TYPE STRING,
DMBE2 TYPE STRING,
DMBE3 TYPE STRING,END OF T_EKKO_STR.
DATA: WA_EWUFIOPSEL_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_EWUFIOPSEL_STR-KOART sy-vline 
WA_EWUFIOPSEL_STR-BUKRS sy-vline 
WA_EWUFIOPSEL_STR-HKONT sy-vline 
WA_EWUFIOPSEL_STR-KUNNR sy-vline 
WA_EWUFIOPSEL_STR-LIFNR sy-vline 
WA_EWUFIOPSEL_STR-GSBER sy-vline 
WA_EWUFIOPSEL_STR-UMSKZ sy-vline 
WA_EWUFIOPSEL_STR-PSWSL sy-vline 
WA_EWUFIOPSEL_STR-SHKZG sy-vline 
WA_EWUFIOPSEL_STR-PSWBT sy-vline 
WA_EWUFIOPSEL_STR-DMBTR sy-vline 
WA_EWUFIOPSEL_STR-DMBE2 sy-vline 
WA_EWUFIOPSEL_STR-DMBE3 sy-vline      INTO ld_text SEPARATED BY SPACE.

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