ABAP Select data from SAP table IMPESFIOAM into internal table

Get Example source ABAP code based on a different SAP table
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Below is a number of ABAP code snippets to demonstrate how to select data from SAP IMPESFIOAM 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 IMPESFIOAM. 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 IMPESFIOAM 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_IMPESFIOAM TYPE STANDARD TABLE OF IMPESFIOAM,
      WA_IMPESFIOAM TYPE IMPESFIOAM,
      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: <IMPESFIOAM> TYPE IMPESFIOAM.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM IMPESFIOAM
*  INTO TABLE @DATA(IT_IMPESFIOAM2).
*--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_IMPESFIOAM INDEX 1 INTO DATA(WA_IMPESFIOAM2).


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

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

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_IMPESFIOAM-OPACTYNTWKELEMENT, sy-vline,
  WA_IMPESFIOAM-ASSEMBLYSHOPFLOORITEM, sy-vline,
  WA_IMPESFIOAM-SHOPFLOORITEM, sy-vline,
  WA_IMPESFIOAM-BATCH, sy-vline,
  WA_IMPESFIOAM-MATERIAL, sy-vline,
  WA_IMPESFIOAM-PLANT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_IMPESFIOAM 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_IMPESFIOAM 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_IMPESFIOAM INTO WA_IMPESFIOAM.


*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_IMPESFIOAM-MATERIAL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IMPESFIOAM-MATERIAL.
WRITE:/ 'New Value:', ld_input.

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

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

*Conversion exit GERNR, internal->external for field SERIALNUMBER
CALL FUNCTION 'CONVERSION_EXIT_GERNR_OUTPUT'
  EXPORTING
    input =                      WA_IMPESFIOAM-SERIALNUMBER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IMPESFIOAM-SERIALNUMBER.
WRITE:/ 'New Value:', ld_input.

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

*Conversion exit ALPHA, internal->external for field BILLOFMATERIALVARIANT
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_IMPESFIOAM-BILLOFMATERIALVARIANT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IMPESFIOAM-BILLOFMATERIALVARIANT.
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_IMPESFIOAM_STR, 
MANDT TYPE STRING,
RESERVATION TYPE STRING,
RESERVATIONITEM TYPE STRING,
RECORDTYPE TYPE STRING,
OPACTYNTWKINSTANCE TYPE STRING,
OPACTYNTWKELEMENT TYPE STRING,
ASSEMBLYSHOPFLOORITEM TYPE STRING,
SHOPFLOORITEM TYPE STRING,
BATCH TYPE STRING,
MATERIAL TYPE STRING,
PLANT TYPE STRING,
ORIGLDGTLMOCKUPCHARCSUUID TYPE STRING,
CREATIONDATETIME TYPE STRING,
STORAGELOCATION TYPE STRING,
DGTLMOCKUPCHARCSUUID TYPE STRING,
REQUIREDQUANTITY TYPE STRING,
MATERIALCOMPONENTQUANTITY TYPE STRING,
MATERIALBASEUNIT TYPE STRING,
MANUFACTURINGORDER TYPE STRING,
ORDERINTERNALID TYPE STRING,
ORDEROPERATIONINTERNALID TYPE STRING,
OPERATIONACTIVITYNETWORK TYPE STRING,
OPACTYNTWKVERSIONCOUNTER TYPE STRING,
SERIALNUMBER TYPE STRING,
EQUIPMENT TYPE STRING,
MANUFACTURERSERIALNUMBER TYPE STRING,
BATCHBYSUPPLIER TYPE STRING,
REFERENCEDESIGNATORVALUE TYPE STRING,
MATLCOMPISMARKEDFORBACKFLUSH TYPE STRING,
ISBULKMATERIALCOMPONENT TYPE STRING,
DEBITCREDITCODE TYPE STRING,
MATLCOMPASSEMBLECONTROL TYPE STRING,
MATLCOMPASSEMBLECONTROLNAME TYPE STRING,
RELATEDOPACTYNTWKELEMENT TYPE STRING,
RELATEDOPACTYNTWKINSTANCE TYPE STRING,
RELATEDRECORDTYPE TYPE STRING,
RELATEDRESERVATION TYPE STRING,
RELATEDRESERVATIONITEM TYPE STRING,
BILLOFMATERIALCATEGORY TYPE STRING,
BILLOFMATERIALINTERNALID TYPE STRING,
BOMITEM TYPE STRING,
BOMITEMINTERNALCHANGECOUNT TYPE STRING,
BILLOFMATERIALVARIANT TYPE STRING,
BILLOFMATERIALVERSION TYPE STRING,
BOMITEMCATEGORY TYPE STRING,
BILLOFMATERIALITEMCATEGORYDESC TYPE STRING,
BILLOFMATERIALITEMUUID TYPE STRING,
INHERITEDNODENUMBERFORBOMITEM TYPE STRING,
INHERITEDNODENUMBERVERSIONBOM TYPE STRING,
BILLOFMATERIALVARIANTUSAGE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_IMPESFIOAM_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_IMPESFIOAM_STR-MANDT sy-vline 
WA_IMPESFIOAM_STR-RESERVATION sy-vline 
WA_IMPESFIOAM_STR-RESERVATIONITEM sy-vline 
WA_IMPESFIOAM_STR-RECORDTYPE sy-vline 
WA_IMPESFIOAM_STR-OPACTYNTWKINSTANCE sy-vline 
WA_IMPESFIOAM_STR-OPACTYNTWKELEMENT sy-vline 
WA_IMPESFIOAM_STR-ASSEMBLYSHOPFLOORITEM sy-vline 
WA_IMPESFIOAM_STR-SHOPFLOORITEM sy-vline 
WA_IMPESFIOAM_STR-BATCH sy-vline 
WA_IMPESFIOAM_STR-MATERIAL sy-vline 
WA_IMPESFIOAM_STR-PLANT sy-vline 
WA_IMPESFIOAM_STR-ORIGLDGTLMOCKUPCHARCSUUID sy-vline 
WA_IMPESFIOAM_STR-CREATIONDATETIME sy-vline 
WA_IMPESFIOAM_STR-STORAGELOCATION sy-vline 
WA_IMPESFIOAM_STR-DGTLMOCKUPCHARCSUUID sy-vline 
WA_IMPESFIOAM_STR-REQUIREDQUANTITY sy-vline 
WA_IMPESFIOAM_STR-MATERIALCOMPONENTQUANTITY sy-vline 
WA_IMPESFIOAM_STR-MATERIALBASEUNIT sy-vline 
WA_IMPESFIOAM_STR-MANUFACTURINGORDER sy-vline 
WA_IMPESFIOAM_STR-ORDERINTERNALID sy-vline 
WA_IMPESFIOAM_STR-ORDEROPERATIONINTERNALID sy-vline 
WA_IMPESFIOAM_STR-OPERATIONACTIVITYNETWORK sy-vline 
WA_IMPESFIOAM_STR-OPACTYNTWKVERSIONCOUNTER sy-vline 
WA_IMPESFIOAM_STR-SERIALNUMBER sy-vline 
WA_IMPESFIOAM_STR-EQUIPMENT sy-vline 
WA_IMPESFIOAM_STR-MANUFACTURERSERIALNUMBER sy-vline 
WA_IMPESFIOAM_STR-BATCHBYSUPPLIER sy-vline 
WA_IMPESFIOAM_STR-REFERENCEDESIGNATORVALUE sy-vline 
WA_IMPESFIOAM_STR-MATLCOMPISMARKEDFORBACKFLUSH sy-vline 
WA_IMPESFIOAM_STR-ISBULKMATERIALCOMPONENT sy-vline 
WA_IMPESFIOAM_STR-DEBITCREDITCODE sy-vline 
WA_IMPESFIOAM_STR-MATLCOMPASSEMBLECONTROL sy-vline 
WA_IMPESFIOAM_STR-MATLCOMPASSEMBLECONTROLNAME sy-vline 
WA_IMPESFIOAM_STR-RELATEDOPACTYNTWKELEMENT sy-vline 
WA_IMPESFIOAM_STR-RELATEDOPACTYNTWKINSTANCE sy-vline 
WA_IMPESFIOAM_STR-RELATEDRECORDTYPE sy-vline 
WA_IMPESFIOAM_STR-RELATEDRESERVATION sy-vline 
WA_IMPESFIOAM_STR-RELATEDRESERVATIONITEM sy-vline 
WA_IMPESFIOAM_STR-BILLOFMATERIALCATEGORY sy-vline 
WA_IMPESFIOAM_STR-BILLOFMATERIALINTERNALID sy-vline 
WA_IMPESFIOAM_STR-BOMITEM sy-vline 
WA_IMPESFIOAM_STR-BOMITEMINTERNALCHANGECOUNT sy-vline 
WA_IMPESFIOAM_STR-BILLOFMATERIALVARIANT sy-vline 
WA_IMPESFIOAM_STR-BILLOFMATERIALVERSION sy-vline 
WA_IMPESFIOAM_STR-BOMITEMCATEGORY sy-vline 
WA_IMPESFIOAM_STR-BILLOFMATERIALITEMCATEGORYDESC sy-vline 
WA_IMPESFIOAM_STR-BILLOFMATERIALITEMUUID sy-vline 
WA_IMPESFIOAM_STR-INHERITEDNODENUMBERFORBOMITEM sy-vline 
WA_IMPESFIOAM_STR-INHERITEDNODENUMBERVERSIONBOM sy-vline 
WA_IMPESFIOAM_STR-BILLOFMATERIALVARIANTUSAGE sy-vline      INTO ld_text SEPARATED BY SPACE.

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