ABAP Select data from SAP table EDPO3 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP EDPO3 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 EDPO3. 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 EDPO3 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_EDPO3 TYPE STANDARD TABLE OF EDPO3,
      WA_EDPO3 TYPE EDPO3,
      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: <EDPO3> TYPE EDPO3.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_EDPO3.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM EDPO3
  INTO TABLE IT_EDPO3.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM EDPO3
*  INTO TABLE @DATA(IT_EDPO32).
*--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_EDPO3 INDEX 1 INTO DATA(WA_EDPO32).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_EDPO3 ASSIGNING <EDPO3>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<EDPO3>-MANDT = 1.
<EDPO3>-RCVPRT = 1.
<EDPO3>-RCVPRN = 1.
<EDPO3>-RCVPRO = 1.
<EDPO3>-KAPPL = 1.

ENDLOOP.

LOOP AT IT_EDPO3 INTO WA_EDPO3.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_EDPO3-KSCHL, sy-vline,
  WA_EDPO3-AENDE, sy-vline,
  WA_EDPO3-RCVPOR, sy-vline,
  WA_EDPO3-STD, sy-vline,
  WA_EDPO3-STDMES, sy-vline,
  WA_EDPO3-STDVRS, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_EDPO3 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_EDPO3 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_EDPO3 INTO WA_EDPO3.


*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 RCVPRN
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_EDPO3-RCVPRN
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_EDPO3-RCVPRN.
WRITE:/ 'New Value:', ld_input.

*Conversion exit EDIPV, internal->external for field RCVPRO
CALL FUNCTION 'CONVERSION_EXIT_EDIPV_OUTPUT'
  EXPORTING
    input =                      WA_EDPO3-RCVPRO
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_EDPO3-RCVPRO.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ISOLA, internal->external for field SPRAS
CALL FUNCTION 'CONVERSION_EXIT_ISOLA_OUTPUT'
  EXPORTING
    input =                      WA_EDPO3-SPRAS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_EDPO3-SPRAS.
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_EDPO3_STR, 
MANDT TYPE STRING,
RCVPRT TYPE STRING,
RCVPRN TYPE STRING,
RCVPRO TYPE STRING,
KAPPL TYPE STRING,
KSCHL TYPE STRING,
AENDE TYPE STRING,
RCVPOR TYPE STRING,
STD TYPE STRING,
STDMES TYPE STRING,
STDVRS TYPE STRING,
DOCTYP TYPE STRING,
RCVSLF TYPE STRING,
RCVSDF TYPE STRING,
RCVSCA TYPE STRING,
OUTMOD TYPE STRING,
TEST TYPE STRING,
SPRAS TYPE STRING,
XPRINT TYPE STRING,
EVCODA TYPE STRING,END OF T_EKKO_STR.
DATA: WA_EDPO3_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_EDPO3_STR-MANDT sy-vline 
WA_EDPO3_STR-RCVPRT sy-vline 
WA_EDPO3_STR-RCVPRN sy-vline 
WA_EDPO3_STR-RCVPRO sy-vline 
WA_EDPO3_STR-KAPPL sy-vline 
WA_EDPO3_STR-KSCHL sy-vline 
WA_EDPO3_STR-AENDE sy-vline 
WA_EDPO3_STR-RCVPOR sy-vline 
WA_EDPO3_STR-STD sy-vline 
WA_EDPO3_STR-STDMES sy-vline 
WA_EDPO3_STR-STDVRS sy-vline 
WA_EDPO3_STR-DOCTYP sy-vline 
WA_EDPO3_STR-RCVSLF sy-vline 
WA_EDPO3_STR-RCVSDF sy-vline 
WA_EDPO3_STR-RCVSCA sy-vline 
WA_EDPO3_STR-OUTMOD sy-vline 
WA_EDPO3_STR-TEST sy-vline 
WA_EDPO3_STR-SPRAS sy-vline 
WA_EDPO3_STR-XPRINT sy-vline 
WA_EDPO3_STR-EVCODA sy-vline      INTO ld_text SEPARATED BY SPACE.

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