ABAP Select data from SAP table /WSOPT/C_PI_PARTNER into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP /WSOPT/C_PI_PARTNER 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 /WSOPT/C_PI_PARTNER. 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 /WSOPT/C_PI_PARTNER 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_/WSOPT/C_PI_PARTNER TYPE STANDARD TABLE OF /WSOPT/C_PI_PARTNER,
      WA_/WSOPT/C_PI_PARTNER TYPE /WSOPT/C_PI_PARTNER,
      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: </WSOPT/C_PI_PARTNER> TYPE /WSOPT/C_PI_PARTNER.

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

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM /WSOPT/C_PI_PARTNER
  INTO TABLE IT_/WSOPT/C_PI_PARTNER.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM /WSOPT/C_PI_PARTNER
*  INTO TABLE @DATA(IT_/WSOPT/C_PI_PARTNER2).
*--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_/WSOPT/C_PI_PARTNER INDEX 1 INTO DATA(WA_/WSOPT/C_PI_PARTNER2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_/WSOPT/C_PI_PARTNER ASSIGNING </WSOPT/C_PI_PARTNER>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
</WSOPT/C_PI_PARTNER>-PARTN_ROLE = 1.
</WSOPT/C_PI_PARTNER>-PARTNER = 1.
</WSOPT/C_PI_PARTNER>-SAPID = 1.
</WSOPT/C_PI_PARTNER>-MANDT = 1.
</WSOPT/C_PI_PARTNER>-NAME1 = 1.

ENDLOOP.

LOOP AT IT_/WSOPT/C_PI_PARTNER INTO WA_/WSOPT/C_PI_PARTNER.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_/WSOPT/C_PI_PARTNER-NAME2, sy-vline,
  WA_/WSOPT/C_PI_PARTNER-NAME3, sy-vline,
  WA_/WSOPT/C_PI_PARTNER-NAME4, sy-vline,
  WA_/WSOPT/C_PI_PARTNER-CITY1, sy-vline,
  WA_/WSOPT/C_PI_PARTNER-CITY2, sy-vline,
  WA_/WSOPT/C_PI_PARTNER-POST_CODE1, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_/WSOPT/C_PI_PARTNER 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_/WSOPT/C_PI_PARTNER 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_/WSOPT/C_PI_PARTNER INTO WA_/WSOPT/C_PI_PARTNER.


*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 PARVW, internal->external for field PARTN_ROLE
CALL FUNCTION 'CONVERSION_EXIT_PARVW_OUTPUT'
  EXPORTING
    input =                      WA_/WSOPT/C_PI_PARTNER-PARTN_ROLE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/WSOPT/C_PI_PARTNER-PARTN_ROLE.
WRITE:/ 'New Value:', ld_input.

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

*Conversion exit ISOLA, internal->external for field LANGU
CALL FUNCTION 'CONVERSION_EXIT_ISOLA_OUTPUT'
  EXPORTING
    input =                      WA_/WSOPT/C_PI_PARTNER-LANGU
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/WSOPT/C_PI_PARTNER-LANGU.
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_/WSOPT/C_PI_PARTNER_STR, 
PARTN_ROLE TYPE STRING,
PARTNER TYPE STRING,
SAPID TYPE STRING,
MANDT TYPE STRING,
NAME1 TYPE STRING,
NAME2 TYPE STRING,
NAME3 TYPE STRING,
NAME4 TYPE STRING,
CITY1 TYPE STRING,
CITY2 TYPE STRING,
POST_CODE1 TYPE STRING,
POST_CODE2 TYPE STRING,
COUNTRY TYPE STRING,
REGION TYPE STRING,
STREET TYPE STRING,
PO_BOX TYPE STRING,
LANGU TYPE STRING,
TEL_NUMBER TYPE STRING,
FAX_NUMBER TYPE STRING,
TLX_NUMBER TYPE STRING,
TTX_NUMBER TYPE STRING,
SORT1 TYPE STRING,
NAME_LIST TYPE STRING,
REMARK TYPE STRING,
TZONSP TYPE STRING,
DATUM TYPE STRING,
UZEIT TYPE STRING,
HOUSE_NUM1 TYPE STRING,END OF T_EKKO_STR.
DATA: WA_/WSOPT/C_PI_PARTNER_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_/WSOPT/C_PI_PARTNER_STR-PARTN_ROLE sy-vline 
WA_/WSOPT/C_PI_PARTNER_STR-PARTNER sy-vline 
WA_/WSOPT/C_PI_PARTNER_STR-SAPID sy-vline 
WA_/WSOPT/C_PI_PARTNER_STR-MANDT sy-vline 
WA_/WSOPT/C_PI_PARTNER_STR-NAME1 sy-vline 
WA_/WSOPT/C_PI_PARTNER_STR-NAME2 sy-vline 
WA_/WSOPT/C_PI_PARTNER_STR-NAME3 sy-vline 
WA_/WSOPT/C_PI_PARTNER_STR-NAME4 sy-vline 
WA_/WSOPT/C_PI_PARTNER_STR-CITY1 sy-vline 
WA_/WSOPT/C_PI_PARTNER_STR-CITY2 sy-vline 
WA_/WSOPT/C_PI_PARTNER_STR-POST_CODE1 sy-vline 
WA_/WSOPT/C_PI_PARTNER_STR-POST_CODE2 sy-vline 
WA_/WSOPT/C_PI_PARTNER_STR-COUNTRY sy-vline 
WA_/WSOPT/C_PI_PARTNER_STR-REGION sy-vline 
WA_/WSOPT/C_PI_PARTNER_STR-STREET sy-vline 
WA_/WSOPT/C_PI_PARTNER_STR-PO_BOX sy-vline 
WA_/WSOPT/C_PI_PARTNER_STR-LANGU sy-vline 
WA_/WSOPT/C_PI_PARTNER_STR-TEL_NUMBER sy-vline 
WA_/WSOPT/C_PI_PARTNER_STR-FAX_NUMBER sy-vline 
WA_/WSOPT/C_PI_PARTNER_STR-TLX_NUMBER sy-vline 
WA_/WSOPT/C_PI_PARTNER_STR-TTX_NUMBER sy-vline 
WA_/WSOPT/C_PI_PARTNER_STR-SORT1 sy-vline 
WA_/WSOPT/C_PI_PARTNER_STR-NAME_LIST sy-vline 
WA_/WSOPT/C_PI_PARTNER_STR-REMARK sy-vline 
WA_/WSOPT/C_PI_PARTNER_STR-TZONSP sy-vline 
WA_/WSOPT/C_PI_PARTNER_STR-DATUM sy-vline 
WA_/WSOPT/C_PI_PARTNER_STR-UZEIT sy-vline 
WA_/WSOPT/C_PI_PARTNER_STR-HOUSE_NUM1 sy-vline      INTO ld_text SEPARATED BY SPACE.

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