ABAP Select data from SAP table IARMMATLINSP into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM IARMMATLINSP
*  INTO TABLE @DATA(IT_IARMMATLINSP2).
*--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_IARMMATLINSP INDEX 1 INTO DATA(WA_IARMMATLINSP2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<IARMMATLINSP>-MANDT = 1.
<IARMMATLINSP>-INSPECTIONDOCUMENT = 1.
<IARMMATLINSP>-ISDELETED = 1.
<IARMMATLINSP>-RETSMGMTPROCESS = 1.
<IARMMATLINSP>-REFERENCEDOCUMENT = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_IARMMATLINSP-REFERENCEDOCUMENTITEM, sy-vline,
  WA_IARMMATLINSP-REFERENCEDOCUMENTTYPE, sy-vline,
  WA_IARMMATLINSP-PRODUCTISINSPECTEDATCUSTSITE, sy-vline,
  WA_IARMMATLINSP-RETMATLINSPRESULTCODE, sy-vline,
  WA_IARMMATLINSP-INSPECTIONDATE, sy-vline,
  WA_IARMMATLINSP-CUSTRETITMFOLLOWUPACTIVITY, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_IARMMATLINSP 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_IARMMATLINSP 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_IARMMATLINSP INTO WA_IARMMATLINSP.


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

*Conversion exit ALPHA, internal->external for field RETSMGMTPROCESS
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_IARMMATLINSP-RETSMGMTPROCESS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IARMMATLINSP-RETSMGMTPROCESS.
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_IARMMATLINSP_STR, 
MANDT TYPE STRING,
INSPECTIONDOCUMENT TYPE STRING,
ISDELETED TYPE STRING,
RETSMGMTPROCESS TYPE STRING,
REFERENCEDOCUMENT TYPE STRING,
REFERENCEDOCUMENTITEM TYPE STRING,
REFERENCEDOCUMENTTYPE TYPE STRING,
PRODUCTISINSPECTEDATCUSTSITE TYPE STRING,
RETMATLINSPRESULTCODE TYPE STRING,
INSPECTIONDATE TYPE STRING,
CUSTRETITMFOLLOWUPACTIVITY TYPE STRING,END OF T_EKKO_STR.
DATA: WA_IARMMATLINSP_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_IARMMATLINSP_STR-MANDT sy-vline 
WA_IARMMATLINSP_STR-INSPECTIONDOCUMENT sy-vline 
WA_IARMMATLINSP_STR-ISDELETED sy-vline 
WA_IARMMATLINSP_STR-RETSMGMTPROCESS sy-vline 
WA_IARMMATLINSP_STR-REFERENCEDOCUMENT sy-vline 
WA_IARMMATLINSP_STR-REFERENCEDOCUMENTITEM sy-vline 
WA_IARMMATLINSP_STR-REFERENCEDOCUMENTTYPE sy-vline 
WA_IARMMATLINSP_STR-PRODUCTISINSPECTEDATCUSTSITE sy-vline 
WA_IARMMATLINSP_STR-RETMATLINSPRESULTCODE sy-vline 
WA_IARMMATLINSP_STR-INSPECTIONDATE sy-vline 
WA_IARMMATLINSP_STR-CUSTRETITMFOLLOWUPACTIVITY sy-vline      INTO ld_text SEPARATED BY SPACE.

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