ABAP Select data from SAP table IGOODSISSUEOFSIT into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM IGOODSISSUEOFSIT
*  INTO TABLE @DATA(IT_IGOODSISSUEOFSIT2).
*--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_IGOODSISSUEOFSIT INDEX 1 INTO DATA(WA_IGOODSISSUEOFSIT2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<IGOODSISSUEOFSIT>-MANDT = 1.
<IGOODSISSUEOFSIT>-MATERIALDOCUMENT = 1.
<IGOODSISSUEOFSIT>-MATERIALDOCUMENTITEM = 1.
<IGOODSISSUEOFSIT>-MATERIALDOCUMENTYEAR = 1.
<IGOODSISSUEOFSIT>-PURCHASEORDER = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_IGOODSISSUEOFSIT-PURCHASEORDERITEM, sy-vline,
  WA_IGOODSISSUEOFSIT-MATERIAL, sy-vline,
  WA_IGOODSISSUEOFSIT-STORAGELOCATION, sy-vline,
  WA_IGOODSISSUEOFSIT-BATCH, sy-vline,
  WA_IGOODSISSUEOFSIT-GOODSISSUEMOVEMENTTYPE, sy-vline,
  WA_IGOODSISSUEOFSIT-GOODSMOVEMENTTYPENAME, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_IGOODSISSUEOFSIT 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_IGOODSISSUEOFSIT 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_IGOODSISSUEOFSIT INTO WA_IGOODSISSUEOFSIT.


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

*Conversion exit GJAHR, internal->external for field MATERIALDOCUMENTYEAR
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_IGOODSISSUEOFSIT-MATERIALDOCUMENTYEAR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IGOODSISSUEOFSIT-MATERIALDOCUMENTYEAR.
WRITE:/ 'New Value:', ld_input.

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

*Conversion exit MATN1, internal->external for field MATERIAL
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_IGOODSISSUEOFSIT-MATERIAL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IGOODSISSUEOFSIT-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_IGOODSISSUEOFSIT_STR, 
MANDT TYPE STRING,
MATERIALDOCUMENT TYPE STRING,
MATERIALDOCUMENTITEM TYPE STRING,
MATERIALDOCUMENTYEAR TYPE STRING,
PURCHASEORDER TYPE STRING,
PURCHASEORDERITEM TYPE STRING,
MATERIAL TYPE STRING,
STORAGELOCATION TYPE STRING,
BATCH TYPE STRING,
GOODSISSUEMOVEMENTTYPE TYPE STRING,
GOODSMOVEMENTTYPENAME TYPE STRING,END OF T_EKKO_STR.
DATA: WA_IGOODSISSUEOFSIT_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_IGOODSISSUEOFSIT_STR-MANDT sy-vline 
WA_IGOODSISSUEOFSIT_STR-MATERIALDOCUMENT sy-vline 
WA_IGOODSISSUEOFSIT_STR-MATERIALDOCUMENTITEM sy-vline 
WA_IGOODSISSUEOFSIT_STR-MATERIALDOCUMENTYEAR sy-vline 
WA_IGOODSISSUEOFSIT_STR-PURCHASEORDER sy-vline 
WA_IGOODSISSUEOFSIT_STR-PURCHASEORDERITEM sy-vline 
WA_IGOODSISSUEOFSIT_STR-MATERIAL sy-vline 
WA_IGOODSISSUEOFSIT_STR-STORAGELOCATION sy-vline 
WA_IGOODSISSUEOFSIT_STR-BATCH sy-vline 
WA_IGOODSISSUEOFSIT_STR-GOODSISSUEMOVEMENTTYPE sy-vline 
WA_IGOODSISSUEOFSIT_STR-GOODSMOVEMENTTYPENAME sy-vline      INTO ld_text SEPARATED BY SPACE.

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