ABAP Select data from SAP table IARUNDMNDREL into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM IARUNDMNDREL
*  INTO TABLE @DATA(IT_IARUNDMNDREL2).
*--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_IARUNDMNDREL INDEX 1 INTO DATA(WA_IARUNDMNDREL2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<IARUNDMNDREL>-MANDT = 1.
<IARUNDMNDREL>-REQUIREMENTDOCUMENTNUMBER = 1.
<IARUNDMNDREL>-REQUIREMENTDOCUMENTITEM = 1.
<IARUNDMNDREL>-REQUIREMENTTYPE = 1.
<IARUNDMNDREL>-REQUESTEDDELIVERYDATE = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_IARUNDMNDREL-REQUESTEDRQMTQTYINBASEUNIT, sy-vline,
  WA_IARUNDMNDREL-CONFIRMEDRQMTQTYINBASEUNIT, sy-vline,
  WA_IARUNDMNDREL-READYFORRELEASEQTYINBASEUNIT, sy-vline,
  WA_IARUNDMNDREL-ONHOLDQUANTITYINBASEUNIT, sy-vline,
  WA_IARUNDMNDREL-SUPASSGMTRESERVEDQTYINBASEUNIT, sy-vline,
  WA_IARUNDMNDREL-FIXEDQUANTITYINBASEUNIT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_IARUNDMNDREL 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_IARUNDMNDREL 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_IARUNDMNDREL INTO WA_IARUNDMNDREL.


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

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

*Conversion exit MATN1, internal->external for field MATERIAL
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_IARUNDMNDREL-MATERIAL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IARUNDMNDREL-MATERIAL.
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_IARUNDMNDREL_STR, 
MANDT TYPE STRING,
REQUIREMENTDOCUMENTNUMBER TYPE STRING,
REQUIREMENTDOCUMENTITEM TYPE STRING,
REQUIREMENTTYPE TYPE STRING,
REQUESTEDDELIVERYDATE TYPE STRING,
REQUESTEDRQMTQTYINBASEUNIT TYPE STRING,
CONFIRMEDRQMTQTYINBASEUNIT TYPE STRING,
READYFORRELEASEQTYINBASEUNIT TYPE STRING,
ONHOLDQUANTITYINBASEUNIT TYPE STRING,
SUPASSGMTRESERVEDQTYINBASEUNIT TYPE STRING,
FIXEDQUANTITYINBASEUNIT TYPE STRING,
DELIVEREDQUANTITYINBASEUNIT TYPE STRING,
ASSIGNEDQUANTITYINBASEUNIT TYPE STRING,
INBOUNDASSIGNEDQUANTITYINBSUNT TYPE STRING,
ARUNPHYSSUPASSGDQTYINBSUNT TYPE STRING,
ARUNPHYSSUPRESERVEDQTYINBSUNT TYPE STRING,
ARUNDOCUMENTITEMUNIQUEID TYPE STRING,
BASEUNIT TYPE STRING,
MATERIAL TYPE STRING,
FASHIONCANCELDATE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_IARUNDMNDREL_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_IARUNDMNDREL_STR-MANDT sy-vline 
WA_IARUNDMNDREL_STR-REQUIREMENTDOCUMENTNUMBER sy-vline 
WA_IARUNDMNDREL_STR-REQUIREMENTDOCUMENTITEM sy-vline 
WA_IARUNDMNDREL_STR-REQUIREMENTTYPE sy-vline 
WA_IARUNDMNDREL_STR-REQUESTEDDELIVERYDATE sy-vline 
WA_IARUNDMNDREL_STR-REQUESTEDRQMTQTYINBASEUNIT sy-vline 
WA_IARUNDMNDREL_STR-CONFIRMEDRQMTQTYINBASEUNIT sy-vline 
WA_IARUNDMNDREL_STR-READYFORRELEASEQTYINBASEUNIT sy-vline 
WA_IARUNDMNDREL_STR-ONHOLDQUANTITYINBASEUNIT sy-vline 
WA_IARUNDMNDREL_STR-SUPASSGMTRESERVEDQTYINBASEUNIT sy-vline 
WA_IARUNDMNDREL_STR-FIXEDQUANTITYINBASEUNIT sy-vline 
WA_IARUNDMNDREL_STR-DELIVEREDQUANTITYINBASEUNIT sy-vline 
WA_IARUNDMNDREL_STR-ASSIGNEDQUANTITYINBASEUNIT sy-vline 
WA_IARUNDMNDREL_STR-INBOUNDASSIGNEDQUANTITYINBSUNT sy-vline 
WA_IARUNDMNDREL_STR-ARUNPHYSSUPASSGDQTYINBSUNT sy-vline 
WA_IARUNDMNDREL_STR-ARUNPHYSSUPRESERVEDQTYINBSUNT sy-vline 
WA_IARUNDMNDREL_STR-ARUNDOCUMENTITEMUNIQUEID sy-vline 
WA_IARUNDMNDREL_STR-BASEUNIT sy-vline 
WA_IARUNDMNDREL_STR-MATERIAL sy-vline 
WA_IARUNDMNDREL_STR-FASHIONCANCELDATE sy-vline      INTO ld_text SEPARATED BY SPACE.

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