ABAP Select data from SAP table ASRVCTRITEM into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM ASRVCTRITEM
*  INTO TABLE @DATA(IT_ASRVCTRITEM2).
*--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_ASRVCTRITEM INDEX 1 INTO DATA(WA_ASRVCTRITEM2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<ASRVCTRITEM>-MANDT = 1.
<ASRVCTRITEM>-SERVICECONTRACT = 1.
<ASRVCTRITEM>-SERVICECONTRACTITEM = 1.
<ASRVCTRITEM>-SERVICECONTRACTITEMCATEGORY = 1.
<ASRVCTRITEM>-PRODUCT = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_ASRVCTRITEM-QUANTITY, sy-vline,
  WA_ASRVCTRITEM-QUANTITYUNIT, sy-vline,
  WA_ASRVCTRITEM-SERVICECONTRACTITEMDESCRIPTION, sy-vline,
  WA_ASRVCTRITEM-LANGUAGE, sy-vline,
  WA_ASRVCTRITEM-SERVICECONTRACTITEMISRELEASED, sy-vline,
  WA_ASRVCTRITEM-SERVICECONTRACTITEMISCOMPLETED, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_ASRVCTRITEM 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_ASRVCTRITEM 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_ASRVCTRITEM INTO WA_ASRVCTRITEM.


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

*Conversion exit CUNIT, internal->external for field QUANTITYUNIT
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_ASRVCTRITEM-QUANTITYUNIT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ASRVCTRITEM-QUANTITYUNIT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ISOLA, internal->external for field LANGUAGE
CALL FUNCTION 'CONVERSION_EXIT_ISOLA_OUTPUT'
  EXPORTING
    input =                      WA_ASRVCTRITEM-LANGUAGE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ASRVCTRITEM-LANGUAGE.
WRITE:/ 'New Value:', ld_input.

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

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

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

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

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

*Conversion exit CUNIT, internal->external for field SRVCCONTRITEMRNWLDURATIONUNIT
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_ASRVCTRITEM-SRVCCONTRITEMRNWLDURATIONUNIT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ASRVCTRITEM-SRVCCONTRITEMRNWLDURATIONUNIT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field SRVCCONTRITEMEXTNDURATIONUNIT
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_ASRVCTRITEM-SRVCCONTRITEMEXTNDURATIONUNIT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ASRVCTRITEM-SRVCCONTRITEMEXTNDURATIONUNIT.
WRITE:/ 'New Value:', ld_input.

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

*Conversion exit ALPHA, internal->external for field PROFITCENTER
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_ASRVCTRITEM-PROFITCENTER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ASRVCTRITEM-PROFITCENTER.
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_ASRVCTRITEM_STR, 
MANDT TYPE STRING,
SERVICECONTRACT TYPE STRING,
SERVICECONTRACTITEM TYPE STRING,
SERVICECONTRACTITEMCATEGORY TYPE STRING,
PRODUCT TYPE STRING,
QUANTITY TYPE STRING,
QUANTITYUNIT TYPE STRING,
SERVICECONTRACTITEMDESCRIPTION TYPE STRING,
LANGUAGE TYPE STRING,
SERVICECONTRACTITEMISRELEASED TYPE STRING,
SERVICECONTRACTITEMISCOMPLETED TYPE STRING,
SERVICECONTRACTITEMCANCLNPARTY TYPE STRING,
SERVICECONTRACTITMCANCLNREASON TYPE STRING,
SERVICECONTRACTITEMCANCLNDATE TYPE STRING,
SERVICECONTRITEMSTARTDATETIME TYPE STRING,
SERVICECONTRITEMENDDATETIME TYPE STRING,
BILLINGBLOCKREASON TYPE STRING,
SHIPTOPARTY TYPE STRING,
PERSONRESPONSIBLE TYPE STRING,
BILLTOPARTY TYPE STRING,
PAYERPARTY TYPE STRING,
CONTACTPERSON TYPE STRING,
REFERENCESERVICECONTRACTITEM TYPE STRING,
REFERENCESERVICEQTANITEM TYPE STRING,
SRVCCONTRITEMRNWLDURATION TYPE STRING,
SRVCCONTRITEMRNWLDURATIONUNIT TYPE STRING,
SRVCCONTRITEMEXTENSIONDURATION TYPE STRING,
SRVCCONTRITEMEXTNDURATIONUNIT TYPE STRING,
SRVCTRANSCHANGEPROCESS TYPE STRING,
SRVCTRANSCHANGEPROCESSTYPE TYPE STRING,
SRVCTRANSCHGPROCSOURCETRANSID TYPE STRING,
SRVCTRANSCHGPROCSOURCEITEMID TYPE STRING,
SRVCTRANSCHGPROCSOURCEITEMUUID TYPE STRING,
PROFITCENTER TYPE STRING,END OF T_EKKO_STR.
DATA: WA_ASRVCTRITEM_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_ASRVCTRITEM_STR-MANDT sy-vline 
WA_ASRVCTRITEM_STR-SERVICECONTRACT sy-vline 
WA_ASRVCTRITEM_STR-SERVICECONTRACTITEM sy-vline 
WA_ASRVCTRITEM_STR-SERVICECONTRACTITEMCATEGORY sy-vline 
WA_ASRVCTRITEM_STR-PRODUCT sy-vline 
WA_ASRVCTRITEM_STR-QUANTITY sy-vline 
WA_ASRVCTRITEM_STR-QUANTITYUNIT sy-vline 
WA_ASRVCTRITEM_STR-SERVICECONTRACTITEMDESCRIPTION sy-vline 
WA_ASRVCTRITEM_STR-LANGUAGE sy-vline 
WA_ASRVCTRITEM_STR-SERVICECONTRACTITEMISRELEASED sy-vline 
WA_ASRVCTRITEM_STR-SERVICECONTRACTITEMISCOMPLETED sy-vline 
WA_ASRVCTRITEM_STR-SERVICECONTRACTITEMCANCLNPARTY sy-vline 
WA_ASRVCTRITEM_STR-SERVICECONTRACTITMCANCLNREASON sy-vline 
WA_ASRVCTRITEM_STR-SERVICECONTRACTITEMCANCLNDATE sy-vline 
WA_ASRVCTRITEM_STR-SERVICECONTRITEMSTARTDATETIME sy-vline 
WA_ASRVCTRITEM_STR-SERVICECONTRITEMENDDATETIME sy-vline 
WA_ASRVCTRITEM_STR-BILLINGBLOCKREASON sy-vline 
WA_ASRVCTRITEM_STR-SHIPTOPARTY sy-vline 
WA_ASRVCTRITEM_STR-PERSONRESPONSIBLE sy-vline 
WA_ASRVCTRITEM_STR-BILLTOPARTY sy-vline 
WA_ASRVCTRITEM_STR-PAYERPARTY sy-vline 
WA_ASRVCTRITEM_STR-CONTACTPERSON sy-vline 
WA_ASRVCTRITEM_STR-REFERENCESERVICECONTRACTITEM sy-vline 
WA_ASRVCTRITEM_STR-REFERENCESERVICEQTANITEM sy-vline 
WA_ASRVCTRITEM_STR-SRVCCONTRITEMRNWLDURATION sy-vline 
WA_ASRVCTRITEM_STR-SRVCCONTRITEMRNWLDURATIONUNIT sy-vline 
WA_ASRVCTRITEM_STR-SRVCCONTRITEMEXTENSIONDURATION sy-vline 
WA_ASRVCTRITEM_STR-SRVCCONTRITEMEXTNDURATIONUNIT sy-vline 
WA_ASRVCTRITEM_STR-SRVCTRANSCHANGEPROCESS sy-vline 
WA_ASRVCTRITEM_STR-SRVCTRANSCHANGEPROCESSTYPE sy-vline 
WA_ASRVCTRITEM_STR-SRVCTRANSCHGPROCSOURCETRANSID sy-vline 
WA_ASRVCTRITEM_STR-SRVCTRANSCHGPROCSOURCEITEMID sy-vline 
WA_ASRVCTRITEM_STR-SRVCTRANSCHGPROCSOURCEITEMUUID sy-vline 
WA_ASRVCTRITEM_STR-PROFITCENTER sy-vline      INTO ld_text SEPARATED BY SPACE.

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