ABAP Select data from SAP table CSRVCDOCPARTNERH into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CSRVCDOCPARTNERH
*  INTO TABLE @DATA(IT_CSRVCDOCPARTNERH2).
*--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_CSRVCDOCPARTNERH INDEX 1 INTO DATA(WA_CSRVCDOCPARTNERH2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<CSRVCDOCPARTNERH>-MANDT = 1.
<CSRVCDOCPARTNERH>-CUSTMGMTOBJECTTYPE = 1.
<CSRVCDOCPARTNERH>-CUSTMGMTDOCUMENT = 1.
<CSRVCDOCPARTNERH>-CUSTMGMTDOCUMENTITEM = 1.
<CSRVCDOCPARTNERH>-CUSTMGMTPARTNERFUNCTION = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CSRVCDOCPARTNERH-CUSTMGMTPARTNER, sy-vline,
  WA_CSRVCDOCPARTNERH-CUSTMGMTPARTNERNUMBERTYPE, sy-vline,
  WA_CSRVCDOCPARTNERH-CUSTMGMTPARTFUNCTIONCATEGORY, sy-vline,
  WA_CSRVCDOCPARTNERH-CUSTMGMTBUSINESSPARTNER, sy-vline,
  WA_CSRVCDOCPARTNERH-PARTNERFUNCTIONNAME, sy-vline,
  WA_CSRVCDOCPARTNERH-BUSINESSPARTNERFULLNAME, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CSRVCDOCPARTNERH 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_CSRVCDOCPARTNERH 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_CSRVCDOCPARTNERH INTO WA_CSRVCDOCPARTNERH.


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

*Conversion exit ALPHA, internal->external for field CUSTMGMTBUSINESSPARTNER
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_CSRVCDOCPARTNERH-CUSTMGMTBUSINESSPARTNER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CSRVCDOCPARTNERH-CUSTMGMTBUSINESSPARTNER.
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_CSRVCDOCPARTNERH_STR, 
MANDT TYPE STRING,
CUSTMGMTOBJECTTYPE TYPE STRING,
CUSTMGMTDOCUMENT TYPE STRING,
CUSTMGMTDOCUMENTITEM TYPE STRING,
CUSTMGMTPARTNERFUNCTION TYPE STRING,
CUSTMGMTPARTNER TYPE STRING,
CUSTMGMTPARTNERNUMBERTYPE TYPE STRING,
CUSTMGMTPARTFUNCTIONCATEGORY TYPE STRING,
CUSTMGMTBUSINESSPARTNER TYPE STRING,
PARTNERFUNCTIONNAME TYPE STRING,
BUSINESSPARTNERFULLNAME TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CSRVCDOCPARTNERH_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_CSRVCDOCPARTNERH_STR-MANDT sy-vline 
WA_CSRVCDOCPARTNERH_STR-CUSTMGMTOBJECTTYPE sy-vline 
WA_CSRVCDOCPARTNERH_STR-CUSTMGMTDOCUMENT sy-vline 
WA_CSRVCDOCPARTNERH_STR-CUSTMGMTDOCUMENTITEM sy-vline 
WA_CSRVCDOCPARTNERH_STR-CUSTMGMTPARTNERFUNCTION sy-vline 
WA_CSRVCDOCPARTNERH_STR-CUSTMGMTPARTNER sy-vline 
WA_CSRVCDOCPARTNERH_STR-CUSTMGMTPARTNERNUMBERTYPE sy-vline 
WA_CSRVCDOCPARTNERH_STR-CUSTMGMTPARTFUNCTIONCATEGORY sy-vline 
WA_CSRVCDOCPARTNERH_STR-CUSTMGMTBUSINESSPARTNER sy-vline 
WA_CSRVCDOCPARTNERH_STR-PARTNERFUNCTIONNAME sy-vline 
WA_CSRVCDOCPARTNERH_STR-BUSINESSPARTNERFULLNAME sy-vline      INTO ld_text SEPARATED BY SPACE.

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