ABAP Select data from SAP table CSRVCDOCMN into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CSRVCDOCMN
*  INTO TABLE @DATA(IT_CSRVCDOCMN2).
*--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_CSRVCDOCMN INDEX 1 INTO DATA(WA_CSRVCDOCMN2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<CSRVCDOCMN>-MANDT = 1.
<CSRVCDOCMN>-SERVICEOBJECTTYPE = 1.
<CSRVCDOCMN>-SERVICEDOCUMENT = 1.
<CSRVCDOCMN>-SERVICEDOCUMENTDESCRIPTION = 1.
<CSRVCDOCMN>-SERVICEDOCUMENTUUID = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CSRVCDOCMN-SERVICEDOCUMENTTYPE, sy-vline,
  WA_CSRVCDOCMN-SITNNUMBEROFINSTANCES, sy-vline,
  WA_CSRVCDOCMN-SERVICEDOCNETAMOUNT, sy-vline,
  WA_CSRVCDOCMN-TRANSACTIONCURRENCY, sy-vline,
  WA_CSRVCDOCMN-SOLDTOPARTY, sy-vline,
  WA_CSRVCDOCMN-SOLDTOPARTYCOUNTRY, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CSRVCDOCMN 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_CSRVCDOCMN 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_CSRVCDOCMN INTO WA_CSRVCDOCMN.


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

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

*Conversion exit ALPHA, internal->external for field RESPEMPLOYEEBUSINESSPARTNERID
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_CSRVCDOCMN-RESPEMPLOYEEBUSINESSPARTNERID
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CSRVCDOCMN-RESPEMPLOYEEBUSINESSPARTNERID.
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_CSRVCDOCMN_STR, 
MANDT TYPE STRING,
SERVICEOBJECTTYPE TYPE STRING,
SERVICEDOCUMENT TYPE STRING,
SERVICEDOCUMENTDESCRIPTION TYPE STRING,
SERVICEDOCUMENTUUID TYPE STRING,
SERVICEDOCUMENTTYPE TYPE STRING,
SITNNUMBEROFINSTANCES TYPE STRING,
SERVICEDOCNETAMOUNT TYPE STRING,
TRANSACTIONCURRENCY TYPE STRING,
SOLDTOPARTY TYPE STRING,
SOLDTOPARTYCOUNTRY TYPE STRING,
SOLDTOPARTYREGION TYPE STRING,
SALESORGANIZATION TYPE STRING,
SALESGROUP TYPE STRING,
SALESOFFICE TYPE STRING,
DISTRIBUTIONCHANNEL TYPE STRING,
DIVISION TYPE STRING,
RESPEMPLOYEEBUSINESSPARTNERID TYPE STRING,
SALESGROUPORGUNITID TYPE STRING,
SALESOFFICEORGUNITID TYPE STRING,
SALESORGANIZATIONORGUNITID TYPE STRING,
SERVICEORGANIZATION TYPE STRING,
BILLINGDOCUMENTTYPE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CSRVCDOCMN_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_CSRVCDOCMN_STR-MANDT sy-vline 
WA_CSRVCDOCMN_STR-SERVICEOBJECTTYPE sy-vline 
WA_CSRVCDOCMN_STR-SERVICEDOCUMENT sy-vline 
WA_CSRVCDOCMN_STR-SERVICEDOCUMENTDESCRIPTION sy-vline 
WA_CSRVCDOCMN_STR-SERVICEDOCUMENTUUID sy-vline 
WA_CSRVCDOCMN_STR-SERVICEDOCUMENTTYPE sy-vline 
WA_CSRVCDOCMN_STR-SITNNUMBEROFINSTANCES sy-vline 
WA_CSRVCDOCMN_STR-SERVICEDOCNETAMOUNT sy-vline 
WA_CSRVCDOCMN_STR-TRANSACTIONCURRENCY sy-vline 
WA_CSRVCDOCMN_STR-SOLDTOPARTY sy-vline 
WA_CSRVCDOCMN_STR-SOLDTOPARTYCOUNTRY sy-vline 
WA_CSRVCDOCMN_STR-SOLDTOPARTYREGION sy-vline 
WA_CSRVCDOCMN_STR-SALESORGANIZATION sy-vline 
WA_CSRVCDOCMN_STR-SALESGROUP sy-vline 
WA_CSRVCDOCMN_STR-SALESOFFICE sy-vline 
WA_CSRVCDOCMN_STR-DISTRIBUTIONCHANNEL sy-vline 
WA_CSRVCDOCMN_STR-DIVISION sy-vline 
WA_CSRVCDOCMN_STR-RESPEMPLOYEEBUSINESSPARTNERID sy-vline 
WA_CSRVCDOCMN_STR-SALESGROUPORGUNITID sy-vline 
WA_CSRVCDOCMN_STR-SALESOFFICEORGUNITID sy-vline 
WA_CSRVCDOCMN_STR-SALESORGANIZATIONORGUNITID sy-vline 
WA_CSRVCDOCMN_STR-SERVICEORGANIZATION sy-vline 
WA_CSRVCDOCMN_STR-BILLINGDOCUMENTTYPE sy-vline      INTO ld_text SEPARATED BY SPACE.

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