ABAP Select data from SAP table ISOLOITEMRELSHPS into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM ISOLOITEMRELSHPS
*  INTO TABLE @DATA(IT_ISOLOITEMRELSHPS2).
*--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_ISOLOITEMRELSHPS INDEX 1 INTO DATA(WA_ISOLOITEMRELSHPS2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<ISOLOITEMRELSHPS>-MANDT = 1.
<ISOLOITEMRELSHPS>-BUSINESSSOLUTIONORDER = 1.
<ISOLOITEMRELSHPS>-BUSINESSSOLUTIONORDERITEM = 1.
<ISOLOITEMRELSHPS>-BUSSOLNORDRELATEDITEM = 1.
<ISOLOITEMRELSHPS>-SERVICEDOCUMENTITEMCHARUUID = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_ISOLOITEMRELSHPS-SERVICEDOCUMENTITEMOBJECTTYPE, sy-vline,
  WA_ISOLOITEMRELSHPS-SERVICEDOCUMENTITEMSTATUS, sy-vline,
  WA_ISOLOITEMRELSHPS-BUSSOLNORDITEMISTARGETITEM, sy-vline,
  WA_ISOLOITEMRELSHPS-BUSSOLNORDERITEMCHARUUID, sy-vline,
  WA_ISOLOITEMRELSHPS-SERVICEDOCUMENTITEMUUID, sy-vline,
  WA_ISOLOITEMRELSHPS-SRVCITEMRELSHPTYPE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_ISOLOITEMRELSHPS 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_ISOLOITEMRELSHPS 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_ISOLOITEMRELSHPS INTO WA_ISOLOITEMRELSHPS.


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

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

*Conversion exit ALPHA, internal->external for field RESPONSIBLEEMPLOYEE
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_ISOLOITEMRELSHPS-RESPONSIBLEEMPLOYEE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ISOLOITEMRELSHPS-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_ISOLOITEMRELSHPS_STR, 
MANDT TYPE STRING,
BUSINESSSOLUTIONORDER TYPE STRING,
BUSINESSSOLUTIONORDERITEM TYPE STRING,
BUSSOLNORDRELATEDITEM TYPE STRING,
SERVICEDOCUMENTITEMCHARUUID TYPE STRING,
SERVICEDOCUMENTITEMOBJECTTYPE TYPE STRING,
SERVICEDOCUMENTITEMSTATUS TYPE STRING,
BUSSOLNORDITEMISTARGETITEM TYPE STRING,
BUSSOLNORDERITEMCHARUUID TYPE STRING,
SERVICEDOCUMENTITEMUUID TYPE STRING,
SRVCITEMRELSHPTYPE TYPE STRING,
SRVCDOCITMDELIVERYSTATUS TYPE STRING,
SERVICEEMPLOYEE TYPE STRING,
PLANNEDSERVICESTARTDATE TYPE STRING,
PLANNEDSERVICESTARTDATETIME TYPE STRING,
PLANNEDSERVICEENDDATE TYPE STRING,
PLANNEDSERVICEENDDATETIME TYPE STRING,
LTSTCONFIRMEDDELIVERYDATETIME TYPE STRING,
SRVCDOCAPPTSTARTDATETIME TYPE STRING,
SRVCDOCAPPTENDDATETIME TYPE STRING,
SALESORGANIZATION TYPE STRING,
DISTRIBUTIONCHANNEL TYPE STRING,
DIVISION TYPE STRING,
SALESOFFICE TYPE STRING,
SALESGROUP TYPE STRING,
SALESOFFICEORGUNITID TYPE STRING,
SALESORGANIZATIONORGUNITID TYPE STRING,
SALESGROUPORGUNITID TYPE STRING,
SERVICEORGANIZATION TYPE STRING,
SERVICEDOCUMENTTYPE TYPE STRING,
RESPONSIBLEEMPLOYEE TYPE STRING,
SERVICEOBJECTTYPE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_ISOLOITEMRELSHPS_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_ISOLOITEMRELSHPS_STR-MANDT sy-vline 
WA_ISOLOITEMRELSHPS_STR-BUSINESSSOLUTIONORDER sy-vline 
WA_ISOLOITEMRELSHPS_STR-BUSINESSSOLUTIONORDERITEM sy-vline 
WA_ISOLOITEMRELSHPS_STR-BUSSOLNORDRELATEDITEM sy-vline 
WA_ISOLOITEMRELSHPS_STR-SERVICEDOCUMENTITEMCHARUUID sy-vline 
WA_ISOLOITEMRELSHPS_STR-SERVICEDOCUMENTITEMOBJECTTYPE sy-vline 
WA_ISOLOITEMRELSHPS_STR-SERVICEDOCUMENTITEMSTATUS sy-vline 
WA_ISOLOITEMRELSHPS_STR-BUSSOLNORDITEMISTARGETITEM sy-vline 
WA_ISOLOITEMRELSHPS_STR-BUSSOLNORDERITEMCHARUUID sy-vline 
WA_ISOLOITEMRELSHPS_STR-SERVICEDOCUMENTITEMUUID sy-vline 
WA_ISOLOITEMRELSHPS_STR-SRVCITEMRELSHPTYPE sy-vline 
WA_ISOLOITEMRELSHPS_STR-SRVCDOCITMDELIVERYSTATUS sy-vline 
WA_ISOLOITEMRELSHPS_STR-SERVICEEMPLOYEE sy-vline 
WA_ISOLOITEMRELSHPS_STR-PLANNEDSERVICESTARTDATE sy-vline 
WA_ISOLOITEMRELSHPS_STR-PLANNEDSERVICESTARTDATETIME sy-vline 
WA_ISOLOITEMRELSHPS_STR-PLANNEDSERVICEENDDATE sy-vline 
WA_ISOLOITEMRELSHPS_STR-PLANNEDSERVICEENDDATETIME sy-vline 
WA_ISOLOITEMRELSHPS_STR-LTSTCONFIRMEDDELIVERYDATETIME sy-vline 
WA_ISOLOITEMRELSHPS_STR-SRVCDOCAPPTSTARTDATETIME sy-vline 
WA_ISOLOITEMRELSHPS_STR-SRVCDOCAPPTENDDATETIME sy-vline 
WA_ISOLOITEMRELSHPS_STR-SALESORGANIZATION sy-vline 
WA_ISOLOITEMRELSHPS_STR-DISTRIBUTIONCHANNEL sy-vline 
WA_ISOLOITEMRELSHPS_STR-DIVISION sy-vline 
WA_ISOLOITEMRELSHPS_STR-SALESOFFICE sy-vline 
WA_ISOLOITEMRELSHPS_STR-SALESGROUP sy-vline 
WA_ISOLOITEMRELSHPS_STR-SALESOFFICEORGUNITID sy-vline 
WA_ISOLOITEMRELSHPS_STR-SALESORGANIZATIONORGUNITID sy-vline 
WA_ISOLOITEMRELSHPS_STR-SALESGROUPORGUNITID sy-vline 
WA_ISOLOITEMRELSHPS_STR-SERVICEORGANIZATION sy-vline 
WA_ISOLOITEMRELSHPS_STR-SERVICEDOCUMENTTYPE sy-vline 
WA_ISOLOITEMRELSHPS_STR-RESPONSIBLEEMPLOYEE sy-vline 
WA_ISOLOITEMRELSHPS_STR-SERVICEOBJECTTYPE sy-vline      INTO ld_text SEPARATED BY SPACE.

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