ABAP Select data from SAP table ISERVCONTRVH into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM ISERVCONTRVH
*  INTO TABLE @DATA(IT_ISERVCONTRVH2).
*--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_ISERVCONTRVH INDEX 1 INTO DATA(WA_ISERVCONTRVH2).


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

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

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_ISERVCONTRVH-SALESORGANIZATION, sy-vline,
  WA_ISERVCONTRVH-DISTRIBUTIONCHANNEL, sy-vline,
  WA_ISERVCONTRVH-DIVISION, sy-vline,
  WA_ISERVCONTRVH-SALESOFFICE, sy-vline,
  WA_ISERVCONTRVH-SALESGROUP, sy-vline,
  WA_ISERVCONTRVH-SALESORGANIZATIONORGUNITID, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_ISERVCONTRVH 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_ISERVCONTRVH 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_ISERVCONTRVH INTO WA_ISERVCONTRVH.


*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_ISERVCONTRVH-SERVICEDOCUMENT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ISERVCONTRVH-SERVICEDOCUMENT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field RESPONSIBLEEMPLOYEE
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_ISERVCONTRVH-RESPONSIBLEEMPLOYEE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ISERVCONTRVH-RESPONSIBLEEMPLOYEE.
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_ISERVCONTRVH_STR, 
MANDT TYPE STRING,
SERVICEDOCUMENTTYPE TYPE STRING,
SERVICEDOCUMENT TYPE STRING,
SERVICEOBJECTTYPE TYPE STRING,
SERVICEDOCUMENTDESCRIPTION TYPE STRING,
SALESORGANIZATION TYPE STRING,
DISTRIBUTIONCHANNEL TYPE STRING,
DIVISION TYPE STRING,
SALESOFFICE TYPE STRING,
SALESGROUP TYPE STRING,
SALESORGANIZATIONORGUNITID TYPE STRING,
SALESOFFICEORGUNITID TYPE STRING,
SALESGROUPORGUNITID TYPE STRING,
SERVICEORGANIZATION TYPE STRING,
RESPONSIBLEEMPLOYEE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_ISERVCONTRVH_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_ISERVCONTRVH_STR-MANDT sy-vline 
WA_ISERVCONTRVH_STR-SERVICEDOCUMENTTYPE sy-vline 
WA_ISERVCONTRVH_STR-SERVICEDOCUMENT sy-vline 
WA_ISERVCONTRVH_STR-SERVICEOBJECTTYPE sy-vline 
WA_ISERVCONTRVH_STR-SERVICEDOCUMENTDESCRIPTION sy-vline 
WA_ISERVCONTRVH_STR-SALESORGANIZATION sy-vline 
WA_ISERVCONTRVH_STR-DISTRIBUTIONCHANNEL sy-vline 
WA_ISERVCONTRVH_STR-DIVISION sy-vline 
WA_ISERVCONTRVH_STR-SALESOFFICE sy-vline 
WA_ISERVCONTRVH_STR-SALESGROUP sy-vline 
WA_ISERVCONTRVH_STR-SALESORGANIZATIONORGUNITID sy-vline 
WA_ISERVCONTRVH_STR-SALESOFFICEORGUNITID sy-vline 
WA_ISERVCONTRVH_STR-SALESGROUPORGUNITID sy-vline 
WA_ISERVCONTRVH_STR-SERVICEORGANIZATION sy-vline 
WA_ISERVCONTRVH_STR-RESPONSIBLEEMPLOYEE sy-vline      INTO ld_text SEPARATED BY SPACE.

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