ABAP Select data from SAP table /IAM/S_CUS_ERP_SEARCH into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP /IAM/S_CUS_ERP_SEARCH 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 /IAM/S_CUS_ERP_SEARCH. 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 /IAM/S_CUS_ERP_SEARCH 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_/IAM/S_CUS_ERP_SEARCH TYPE STANDARD TABLE OF /IAM/S_CUS_ERP_SEARCH,
      WA_/IAM/S_CUS_ERP_SEARCH TYPE /IAM/S_CUS_ERP_SEARCH,
      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: </IAM/S_CUS_ERP_SEARCH> TYPE /IAM/S_CUS_ERP_SEARCH.

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

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM /IAM/S_CUS_ERP_SEARCH
  INTO TABLE IT_/IAM/S_CUS_ERP_SEARCH.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM /IAM/S_CUS_ERP_SEARCH
*  INTO TABLE @DATA(IT_/IAM/S_CUS_ERP_SEARCH2).
*--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_/IAM/S_CUS_ERP_SEARCH INDEX 1 INTO DATA(WA_/IAM/S_CUS_ERP_SEARCH2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_/IAM/S_CUS_ERP_SEARCH ASSIGNING </IAM/S_CUS_ERP_SEARCH>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
</IAM/S_CUS_ERP_SEARCH>-KUNNR = 1.
</IAM/S_CUS_ERP_SEARCH>-NAME1 = 1.
</IAM/S_CUS_ERP_SEARCH>-NAME2 = 1.
</IAM/S_CUS_ERP_SEARCH>-MCOD1 = 1.
</IAM/S_CUS_ERP_SEARCH>-ORT01 = 1.

ENDLOOP.

LOOP AT IT_/IAM/S_CUS_ERP_SEARCH INTO WA_/IAM/S_CUS_ERP_SEARCH.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_/IAM/S_CUS_ERP_SEARCH-MCOD3, sy-vline,
  WA_/IAM/S_CUS_ERP_SEARCH-SORTL, sy-vline,
  WA_/IAM/S_CUS_ERP_SEARCH-CUSTOMER, sy-vline,
  WA_/IAM/S_CUS_ERP_SEARCH-NAME, sy-vline,
  WA_/IAM/S_CUS_ERP_SEARCH-CITY, sy-vline,
  WA_/IAM/S_CUS_ERP_SEARCH-POSTL_COD1, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_/IAM/S_CUS_ERP_SEARCH 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_/IAM/S_CUS_ERP_SEARCH 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_/IAM/S_CUS_ERP_SEARCH INTO WA_/IAM/S_CUS_ERP_SEARCH.


*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 KUNNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_/IAM/S_CUS_ERP_SEARCH-KUNNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/IAM/S_CUS_ERP_SEARCH-KUNNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field CUSTOMER
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_/IAM/S_CUS_ERP_SEARCH-CUSTOMER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/IAM/S_CUS_ERP_SEARCH-CUSTOMER.
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_/IAM/S_CUS_ERP_SEARCH_STR, 
KUNNR TYPE STRING,
NAME1 TYPE STRING,
NAME2 TYPE STRING,
MCOD1 TYPE STRING,
ORT01 TYPE STRING,
MCOD3 TYPE STRING,
SORTL TYPE STRING,
CUSTOMER TYPE STRING,
NAME TYPE STRING,
CITY TYPE STRING,
POSTL_COD1 TYPE STRING,
PSTLZ TYPE STRING,
STREET TYPE STRING,
TEL1_NUMBR TYPE STRING,
SORT1 TYPE STRING,
COUNTRY TYPE STRING,
LAND1 TYPE STRING,
ACCOUNT_GRP TYPE STRING,
KTOKD TYPE STRING,
LOGSYS TYPE STRING,END OF T_EKKO_STR.
DATA: WA_/IAM/S_CUS_ERP_SEARCH_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_/IAM/S_CUS_ERP_SEARCH_STR-KUNNR sy-vline 
WA_/IAM/S_CUS_ERP_SEARCH_STR-NAME1 sy-vline 
WA_/IAM/S_CUS_ERP_SEARCH_STR-NAME2 sy-vline 
WA_/IAM/S_CUS_ERP_SEARCH_STR-MCOD1 sy-vline 
WA_/IAM/S_CUS_ERP_SEARCH_STR-ORT01 sy-vline 
WA_/IAM/S_CUS_ERP_SEARCH_STR-MCOD3 sy-vline 
WA_/IAM/S_CUS_ERP_SEARCH_STR-SORTL sy-vline 
WA_/IAM/S_CUS_ERP_SEARCH_STR-CUSTOMER sy-vline 
WA_/IAM/S_CUS_ERP_SEARCH_STR-NAME sy-vline 
WA_/IAM/S_CUS_ERP_SEARCH_STR-CITY sy-vline 
WA_/IAM/S_CUS_ERP_SEARCH_STR-POSTL_COD1 sy-vline 
WA_/IAM/S_CUS_ERP_SEARCH_STR-PSTLZ sy-vline 
WA_/IAM/S_CUS_ERP_SEARCH_STR-STREET sy-vline 
WA_/IAM/S_CUS_ERP_SEARCH_STR-TEL1_NUMBR sy-vline 
WA_/IAM/S_CUS_ERP_SEARCH_STR-SORT1 sy-vline 
WA_/IAM/S_CUS_ERP_SEARCH_STR-COUNTRY sy-vline 
WA_/IAM/S_CUS_ERP_SEARCH_STR-LAND1 sy-vline 
WA_/IAM/S_CUS_ERP_SEARCH_STR-ACCOUNT_GRP sy-vline 
WA_/IAM/S_CUS_ERP_SEARCH_STR-KTOKD sy-vline 
WA_/IAM/S_CUS_ERP_SEARCH_STR-LOGSYS sy-vline      INTO ld_text SEPARATED BY SPACE.

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