ABAP Select data from SAP table IHISTMATLORDNTF into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM IHISTMATLORDNTF
*  INTO TABLE @DATA(IT_IHISTMATLORDNTF2).
*--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_IHISTMATLORDNTF INDEX 1 INTO DATA(WA_IHISTMATLORDNTF2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<IHISTMATLORDNTF>-MANDT = 1.
<IHISTMATLORDNTF>-MATERIAL = 1.
<IHISTMATLORDNTF>-PLANT = 1.
<IHISTMATLORDNTF>-STORAGELOCATION = 1.
<IHISTMATLORDNTF>-NOTIFICATIONTYPE = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_IHISTMATLORDNTF-MAINTENANCEORDERTYPE, sy-vline,
  WA_IHISTMATLORDNTF-TECHNICALOBJECT, sy-vline,
  WA_IHISTMATLORDNTF-RCRRCOFMATLUSAGEINTECHOBJ, sy-vline,
  WA_IHISTMATLORDNTF-TECHOBJISEQUIPORFUNCNLLOC, sy-vline,
  WA_IHISTMATLORDNTF-AUTHORIZATIONGROUP, sy-vline,
  WA_IHISTMATLORDNTF-ISBATCHMANAGEMENTREQUIRED, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_IHISTMATLORDNTF 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_IHISTMATLORDNTF 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_IHISTMATLORDNTF INTO WA_IHISTMATLORDNTF.


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

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

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

*Conversion exit CUNIT, internal->external for field MATERIALWEIGHTUNIT
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_IHISTMATLORDNTF-MATERIALWEIGHTUNIT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IHISTMATLORDNTF-MATERIALWEIGHTUNIT.
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_IHISTMATLORDNTF_STR, 
MANDT TYPE STRING,
MATERIAL TYPE STRING,
PLANT TYPE STRING,
STORAGELOCATION TYPE STRING,
NOTIFICATIONTYPE TYPE STRING,
MAINTENANCEORDERTYPE TYPE STRING,
TECHNICALOBJECT TYPE STRING,
RCRRCOFMATLUSAGEINTECHOBJ TYPE STRING,
TECHOBJISEQUIPORFUNCNLLOC TYPE STRING,
AUTHORIZATIONGROUP TYPE STRING,
ISBATCHMANAGEMENTREQUIRED TYPE STRING,
MATERIALBASEUNIT TYPE STRING,
MATERIALGROSSWEIGHT TYPE STRING,
MATERIALGROUP TYPE STRING,
MATERIALMANUFACTURERNUMBER TYPE STRING,
MATERIALMANUFACTURERPARTNUMBER TYPE STRING,
MATERIALNETWEIGHT TYPE STRING,
MATERIALTYPE TYPE STRING,
MATERIALWEIGHTUNIT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_IHISTMATLORDNTF_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_IHISTMATLORDNTF_STR-MANDT sy-vline 
WA_IHISTMATLORDNTF_STR-MATERIAL sy-vline 
WA_IHISTMATLORDNTF_STR-PLANT sy-vline 
WA_IHISTMATLORDNTF_STR-STORAGELOCATION sy-vline 
WA_IHISTMATLORDNTF_STR-NOTIFICATIONTYPE sy-vline 
WA_IHISTMATLORDNTF_STR-MAINTENANCEORDERTYPE sy-vline 
WA_IHISTMATLORDNTF_STR-TECHNICALOBJECT sy-vline 
WA_IHISTMATLORDNTF_STR-RCRRCOFMATLUSAGEINTECHOBJ sy-vline 
WA_IHISTMATLORDNTF_STR-TECHOBJISEQUIPORFUNCNLLOC sy-vline 
WA_IHISTMATLORDNTF_STR-AUTHORIZATIONGROUP sy-vline 
WA_IHISTMATLORDNTF_STR-ISBATCHMANAGEMENTREQUIRED sy-vline 
WA_IHISTMATLORDNTF_STR-MATERIALBASEUNIT sy-vline 
WA_IHISTMATLORDNTF_STR-MATERIALGROSSWEIGHT sy-vline 
WA_IHISTMATLORDNTF_STR-MATERIALGROUP sy-vline 
WA_IHISTMATLORDNTF_STR-MATERIALMANUFACTURERNUMBER sy-vline 
WA_IHISTMATLORDNTF_STR-MATERIALMANUFACTURERPARTNUMBER sy-vline 
WA_IHISTMATLORDNTF_STR-MATERIALNETWEIGHT sy-vline 
WA_IHISTMATLORDNTF_STR-MATERIALTYPE sy-vline 
WA_IHISTMATLORDNTF_STR-MATERIALWEIGHTUNIT sy-vline      INTO ld_text SEPARATED BY SPACE.

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