ABAP Select data from SAP table IOMATVER into internal table

Get Example source ABAP code based on a different SAP table
  Get ABAP code

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM IOMATVER
*  INTO TABLE @DATA(IT_IOMATVER2).
*--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_IOMATVER INDEX 1 INTO DATA(WA_IOMATVER2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<IOMATVER>-OBJNR = 1.
<IOMATVER>-MATERIAL_TEXT = 1.
<IOMATVER>-ORDER_TYPE = 1.
<IOMATVER>-ORDER_CATEGORY = 1.
<IOMATVER>-CONF_REASON_TEXT = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_IOMATVER-PROBCLASS, sy-vline,
  WA_IOMATVER-ICON_MSGTY, sy-vline,
  WA_IOMATVER-AUFNR, sy-vline,
  WA_IOMATVER-MATNR, sy-vline,
  WA_IOMATVER-PRODVER, sy-vline,
  WA_IOMATVER-WERKS, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_IOMATVER 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_IOMATVER 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_IOMATVER INTO WA_IOMATVER.


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

*Conversion exit MATN1, internal->external for field MATNR
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_IOMATVER-MATNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IOMATVER-MATNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit NUMCV, internal->external for field REVLEVEL
CALL FUNCTION 'CONVERSION_EXIT_NUMCV_OUTPUT'
  EXPORTING
    input =                      WA_IOMATVER-REVLEVEL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IOMATVER-REVLEVEL.
WRITE:/ 'New Value:', ld_input.

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

*Conversion exit NUMCV, internal->external for field CONF_REM_REPPOINT
CALL FUNCTION 'CONVERSION_EXIT_NUMCV_OUTPUT'
  EXPORTING
    input =                      WA_IOMATVER-CONF_REM_REPPOINT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IOMATVER-CONF_REM_REPPOINT.
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_IOMATVER_STR, 
OBJNR TYPE STRING,
MATERIAL_TEXT TYPE STRING,
ORDER_TYPE TYPE STRING,
ORDER_CATEGORY TYPE STRING,
CONF_REASON_TEXT TYPE STRING,
PROBCLASS TYPE STRING,
ICON_MSGTY TYPE STRING,
AUFNR TYPE STRING,
MATNR TYPE STRING,
PRODVER TYPE STRING,
WERKS TYPE STRING,
PLANNING_PLANT TYPE STRING,
STORLOC TYPE STRING,
REVLEVEL TYPE STRING,
PRODLINE TYPE STRING,
PLANNINGID TYPE STRING,
CONF_REM_QUANTITY TYPE STRING,
CONF_REM_SCRAP TYPE STRING,
CONF_REM_UNIT TYPE STRING,
CONF_REM_REPPOINT TYPE STRING,
CONF_REM_BATCH TYPE STRING,
CONF_REM_REASON TYPE STRING,
CONF_REM_SCRAP_TYPE TYPE STRING,
CONF_REM_POSTING_DATE TYPE STRING,
CONF_REM_DOCUMENT_DATE TYPE STRING,
CONF_REM_HEADER_TEXT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_IOMATVER_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_IOMATVER_STR-OBJNR sy-vline 
WA_IOMATVER_STR-MATERIAL_TEXT sy-vline 
WA_IOMATVER_STR-ORDER_TYPE sy-vline 
WA_IOMATVER_STR-ORDER_CATEGORY sy-vline 
WA_IOMATVER_STR-CONF_REASON_TEXT sy-vline 
WA_IOMATVER_STR-PROBCLASS sy-vline 
WA_IOMATVER_STR-ICON_MSGTY sy-vline 
WA_IOMATVER_STR-AUFNR sy-vline 
WA_IOMATVER_STR-MATNR sy-vline 
WA_IOMATVER_STR-PRODVER sy-vline 
WA_IOMATVER_STR-WERKS sy-vline 
WA_IOMATVER_STR-PLANNING_PLANT sy-vline 
WA_IOMATVER_STR-STORLOC sy-vline 
WA_IOMATVER_STR-REVLEVEL sy-vline 
WA_IOMATVER_STR-PRODLINE sy-vline 
WA_IOMATVER_STR-PLANNINGID sy-vline 
WA_IOMATVER_STR-CONF_REM_QUANTITY sy-vline 
WA_IOMATVER_STR-CONF_REM_SCRAP sy-vline 
WA_IOMATVER_STR-CONF_REM_UNIT sy-vline 
WA_IOMATVER_STR-CONF_REM_REPPOINT sy-vline 
WA_IOMATVER_STR-CONF_REM_BATCH sy-vline 
WA_IOMATVER_STR-CONF_REM_REASON sy-vline 
WA_IOMATVER_STR-CONF_REM_SCRAP_TYPE sy-vline 
WA_IOMATVER_STR-CONF_REM_POSTING_DATE sy-vline 
WA_IOMATVER_STR-CONF_REM_DOCUMENT_DATE sy-vline 
WA_IOMATVER_STR-CONF_REM_HEADER_TEXT sy-vline      INTO ld_text SEPARATED BY SPACE.

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