ABAP Select data from SAP table IACTPIR into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM IACTPIR
*  INTO TABLE @DATA(IT_IACTPIR2).
*--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_IACTPIR INDEX 1 INTO DATA(WA_IACTPIR2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<IACTPIR>-MANDT = 1.
<IACTPIR>-PLNDINDEPRQMTINTERNALID = 1.
<IACTPIR>-PLNDINDEPRQMTVERSION = 1.
<IACTPIR>-PRODUCT = 1.
<IACTPIR>-PLANT = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_IACTPIR-MRPAREA, sy-vline,
  WA_IACTPIR-PLNDINDEPRQMTTYPE, sy-vline,
  WA_IACTPIR-REQUIREMENTPLAN, sy-vline,
  WA_IACTPIR-EXTERNALREQUIREMENTPLAN, sy-vline,
  WA_IACTPIR-REQUIREMENTSEGMENT, sy-vline,
  WA_IACTPIR-SALESORDER, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_IACTPIR 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_IACTPIR 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_IACTPIR INTO WA_IACTPIR.


*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 PRODUCT
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_IACTPIR-PRODUCT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IACTPIR-PRODUCT.
WRITE:/ 'New Value:', ld_input.

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

*Conversion exit ABPSP, internal->external for field WBSELEMENTINTERNALID
CALL FUNCTION 'CONVERSION_EXIT_ABPSP_OUTPUT'
  EXPORTING
    input =                      WA_IACTPIR-WBSELEMENTINTERNALID
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IACTPIR-WBSELEMENTINTERNALID.
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_IACTPIR_STR, 
MANDT TYPE STRING,
PLNDINDEPRQMTINTERNALID TYPE STRING,
PLNDINDEPRQMTVERSION TYPE STRING,
PRODUCT TYPE STRING,
PLANT TYPE STRING,
MRPAREA TYPE STRING,
PLNDINDEPRQMTTYPE TYPE STRING,
REQUIREMENTPLAN TYPE STRING,
EXTERNALREQUIREMENTPLAN TYPE STRING,
REQUIREMENTSEGMENT TYPE STRING,
SALESORDER TYPE STRING,
SALESORDERITEM TYPE STRING,
WBSELEMENTINTERNALID TYPE STRING,
WBSELEMENTINTERNALID_2 TYPE STRING,
INVENTORYSPECIALSTOCKTYPE TYPE STRING,
INVENTORYSPECIALSTOCKVALNTYPE TYPE STRING,
CONSUMPTIONPOSTING TYPE STRING,
ACCOUNTASSIGNMENTCATEGORY TYPE STRING,
PLNDINDEPRQMTLASTCHGDDATETIME TYPE STRING,END OF T_EKKO_STR.
DATA: WA_IACTPIR_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_IACTPIR_STR-MANDT sy-vline 
WA_IACTPIR_STR-PLNDINDEPRQMTINTERNALID sy-vline 
WA_IACTPIR_STR-PLNDINDEPRQMTVERSION sy-vline 
WA_IACTPIR_STR-PRODUCT sy-vline 
WA_IACTPIR_STR-PLANT sy-vline 
WA_IACTPIR_STR-MRPAREA sy-vline 
WA_IACTPIR_STR-PLNDINDEPRQMTTYPE sy-vline 
WA_IACTPIR_STR-REQUIREMENTPLAN sy-vline 
WA_IACTPIR_STR-EXTERNALREQUIREMENTPLAN sy-vline 
WA_IACTPIR_STR-REQUIREMENTSEGMENT sy-vline 
WA_IACTPIR_STR-SALESORDER sy-vline 
WA_IACTPIR_STR-SALESORDERITEM sy-vline 
WA_IACTPIR_STR-WBSELEMENTINTERNALID sy-vline 
WA_IACTPIR_STR-WBSELEMENTINTERNALID_2 sy-vline 
WA_IACTPIR_STR-INVENTORYSPECIALSTOCKTYPE sy-vline 
WA_IACTPIR_STR-INVENTORYSPECIALSTOCKVALNTYPE sy-vline 
WA_IACTPIR_STR-CONSUMPTIONPOSTING sy-vline 
WA_IACTPIR_STR-ACCOUNTASSIGNMENTCATEGORY sy-vline 
WA_IACTPIR_STR-PLNDINDEPRQMTLASTCHGDDATETIME sy-vline      INTO ld_text SEPARATED BY SPACE.

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