ABAP Select data from SAP table IMPEOAIAAMAT into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM IMPEOAIAAMAT
*  INTO TABLE @DATA(IT_IMPEOAIAAMAT2).
*--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_IMPEOAIAAMAT INDEX 1 INTO DATA(WA_IMPEOAIAAMAT2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<IMPEOAIAAMAT>-MANDT = 1.
<IMPEOAIAAMAT>-OPACTYNTWKINSTANCE = 1.
<IMPEOAIAAMAT>-OPACTYNTWKELEMENT = 1.
<IMPEOAIAAMAT>-RESERVATION = 1.
<IMPEOAIAAMAT>-RESERVATIONITEM = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_IMPEOAIAAMAT-RECORDTYPE, sy-vline,
  WA_IMPEOAIAAMAT-MATERIAL, sy-vline,
  WA_IMPEOAIAAMAT-PLANT, sy-vline,
  WA_IMPEOAIAAMAT-STORAGELOCATION, sy-vline,
  WA_IMPEOAIAAMAT-MATERIALNAME, sy-vline,
  WA_IMPEOAIAAMAT-MATERIALBASEUNIT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_IMPEOAIAAMAT 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_IMPEOAIAAMAT 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_IMPEOAIAAMAT INTO WA_IMPEOAIAAMAT.


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

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

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

*Conversion exit ALPHA, internal->external for field BILLOFOPERATIONSGROUP
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_IMPEOAIAAMAT-BILLOFOPERATIONSGROUP
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IMPEOAIAAMAT-BILLOFOPERATIONSGROUP.
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_IMPEOAIAAMAT_STR, 
MANDT TYPE STRING,
OPACTYNTWKINSTANCE TYPE STRING,
OPACTYNTWKELEMENT TYPE STRING,
RESERVATION TYPE STRING,
RESERVATIONITEM TYPE STRING,
RECORDTYPE TYPE STRING,
MATERIAL TYPE STRING,
PLANT TYPE STRING,
STORAGELOCATION TYPE STRING,
MATERIALNAME TYPE STRING,
MATERIALBASEUNIT TYPE STRING,
REQUIREDQUANTITY TYPE STRING,
MATERIALCOMPONENTQUANTITY TYPE STRING,
MATLCOMPISMARKEDFORBACKFLUSH TYPE STRING,
GOODSMOVEMENTISALLOWED TYPE STRING,
MATLCOMPINSTCEASSYISREQUIRED TYPE STRING,
BOOOPBOMITEMINTERNALID TYPE STRING,
MANUFACTURINGORDER TYPE STRING,
MANUFACTURINGORDEROPERATION TYPE STRING,
MFGORDEROPERATIONTEXT TYPE STRING,
OPERATIONACTIVITY TYPE STRING,
OPERATIONACTYVERSIONCOUNTER TYPE STRING,
OPERATIONACTIVITYNAME TYPE STRING,
BILLOFOPERATIONSTYPE TYPE STRING,
BILLOFOPERATIONSGROUP TYPE STRING,
COMPONENTASSEMBLYCRITICALITY TYPE STRING,
MATLCOMPASSEMBLECONTROL TYPE STRING,
MATLCOMPASSEMBLECONTROLNAME TYPE STRING,
SERIALNUMBERPROFILE TYPE STRING,
SERIALNUMBERISRQDFORGOODSISSUE TYPE STRING,
ISBATCHMANAGEMENTREQUIRED TYPE STRING,
STOCKCHECKMESSAGETYPE TYPE STRING,
BILLOFMATERIALCATEGORY TYPE STRING,
BILLOFMATERIALINTERNALID TYPE STRING,
BOMITEM TYPE STRING,
BOMITEMINTERNALCHANGECOUNT TYPE STRING,
BOMITEMCATEGORY TYPE STRING,
MFGREFSTRUCBOMLEAFASSGMTUUID TYPE STRING,
MFGREFSTRUCTUREITEMDETAILUUID TYPE STRING,
MFGREFSTRUCITMDETISCONTEXTUAL TYPE STRING,END OF T_EKKO_STR.
DATA: WA_IMPEOAIAAMAT_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_IMPEOAIAAMAT_STR-MANDT sy-vline 
WA_IMPEOAIAAMAT_STR-OPACTYNTWKINSTANCE sy-vline 
WA_IMPEOAIAAMAT_STR-OPACTYNTWKELEMENT sy-vline 
WA_IMPEOAIAAMAT_STR-RESERVATION sy-vline 
WA_IMPEOAIAAMAT_STR-RESERVATIONITEM sy-vline 
WA_IMPEOAIAAMAT_STR-RECORDTYPE sy-vline 
WA_IMPEOAIAAMAT_STR-MATERIAL sy-vline 
WA_IMPEOAIAAMAT_STR-PLANT sy-vline 
WA_IMPEOAIAAMAT_STR-STORAGELOCATION sy-vline 
WA_IMPEOAIAAMAT_STR-MATERIALNAME sy-vline 
WA_IMPEOAIAAMAT_STR-MATERIALBASEUNIT sy-vline 
WA_IMPEOAIAAMAT_STR-REQUIREDQUANTITY sy-vline 
WA_IMPEOAIAAMAT_STR-MATERIALCOMPONENTQUANTITY sy-vline 
WA_IMPEOAIAAMAT_STR-MATLCOMPISMARKEDFORBACKFLUSH sy-vline 
WA_IMPEOAIAAMAT_STR-GOODSMOVEMENTISALLOWED sy-vline 
WA_IMPEOAIAAMAT_STR-MATLCOMPINSTCEASSYISREQUIRED sy-vline 
WA_IMPEOAIAAMAT_STR-BOOOPBOMITEMINTERNALID sy-vline 
WA_IMPEOAIAAMAT_STR-MANUFACTURINGORDER sy-vline 
WA_IMPEOAIAAMAT_STR-MANUFACTURINGORDEROPERATION sy-vline 
WA_IMPEOAIAAMAT_STR-MFGORDEROPERATIONTEXT sy-vline 
WA_IMPEOAIAAMAT_STR-OPERATIONACTIVITY sy-vline 
WA_IMPEOAIAAMAT_STR-OPERATIONACTYVERSIONCOUNTER sy-vline 
WA_IMPEOAIAAMAT_STR-OPERATIONACTIVITYNAME sy-vline 
WA_IMPEOAIAAMAT_STR-BILLOFOPERATIONSTYPE sy-vline 
WA_IMPEOAIAAMAT_STR-BILLOFOPERATIONSGROUP sy-vline 
WA_IMPEOAIAAMAT_STR-COMPONENTASSEMBLYCRITICALITY sy-vline 
WA_IMPEOAIAAMAT_STR-MATLCOMPASSEMBLECONTROL sy-vline 
WA_IMPEOAIAAMAT_STR-MATLCOMPASSEMBLECONTROLNAME sy-vline 
WA_IMPEOAIAAMAT_STR-SERIALNUMBERPROFILE sy-vline 
WA_IMPEOAIAAMAT_STR-SERIALNUMBERISRQDFORGOODSISSUE sy-vline 
WA_IMPEOAIAAMAT_STR-ISBATCHMANAGEMENTREQUIRED sy-vline 
WA_IMPEOAIAAMAT_STR-STOCKCHECKMESSAGETYPE sy-vline 
WA_IMPEOAIAAMAT_STR-BILLOFMATERIALCATEGORY sy-vline 
WA_IMPEOAIAAMAT_STR-BILLOFMATERIALINTERNALID sy-vline 
WA_IMPEOAIAAMAT_STR-BOMITEM sy-vline 
WA_IMPEOAIAAMAT_STR-BOMITEMINTERNALCHANGECOUNT sy-vline 
WA_IMPEOAIAAMAT_STR-BOMITEMCATEGORY sy-vline 
WA_IMPEOAIAAMAT_STR-MFGREFSTRUCBOMLEAFASSGMTUUID sy-vline 
WA_IMPEOAIAAMAT_STR-MFGREFSTRUCTUREITEMDETAILUUID sy-vline 
WA_IMPEOAIAAMAT_STR-MFGREFSTRUCITMDETISCONTEXTUAL sy-vline      INTO ld_text SEPARATED BY SPACE.

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