ABAP Select data from SAP table ISOFISSUESU01 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP ISOFISSUESU01 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 ISOFISSUESU01. 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 ISOFISSUESU01 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_ISOFISSUESU01 TYPE STANDARD TABLE OF ISOFISSUESU01,
      WA_ISOFISSUESU01 TYPE ISOFISSUESU01,
      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: <ISOFISSUESU01> TYPE ISOFISSUESU01.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_ISOFISSUESU01.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM ISOFISSUESU01
  INTO TABLE IT_ISOFISSUESU01.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM ISOFISSUESU01
*  INTO TABLE @DATA(IT_ISOFISSUESU012).
*--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_ISOFISSUESU01 INDEX 1 INTO DATA(WA_ISOFISSUESU012).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_ISOFISSUESU01 ASSIGNING <ISOFISSUESU01>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<ISOFISSUESU01>-MANDT = 1.
<ISOFISSUESU01>-SALESORDER = 1.
<ISOFISSUESU01>-SALESORDERITEM = 1.
<ISOFISSUESU01>-PURCHASINGDOCUMENT = 1.
<ISOFISSUESU01>-PURCHASINGDOCUMENTITEM = 1.

ENDLOOP.

LOOP AT IT_ISOFISSUESU01 INTO WA_ISOFISSUESU01.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_ISOFISSUESU01-ISSUE, sy-vline,
  WA_ISOFISSUESU01-ISSUECATEGORY, sy-vline,
  WA_ISOFISSUESU01-DUEDAYS, sy-vline,
  WA_ISOFISSUESU01-DUEDATE, sy-vline,
  WA_ISOFISSUESU01-DELIVERYDATE, sy-vline,
  WA_ISOFISSUESU01-NMBROFITEMSINSUPPLY, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_ISOFISSUESU01 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_ISOFISSUESU01 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_ISOFISSUESU01 INTO WA_ISOFISSUESU01.


*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 SALESORDER
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_ISOFISSUESU01-SALESORDER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ISOFISSUESU01-SALESORDER.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field PURCHASINGDOCUMENT
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_ISOFISSUESU01-PURCHASINGDOCUMENT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ISOFISSUESU01-PURCHASINGDOCUMENT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AUART, internal->external for field SALESORDERTYPE
CALL FUNCTION 'CONVERSION_EXIT_AUART_OUTPUT'
  EXPORTING
    input =                      WA_ISOFISSUESU01-SALESORDERTYPE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ISOFISSUESU01-SALESORDERTYPE.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field SOLDTOPARTY
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_ISOFISSUESU01-SOLDTOPARTY
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ISOFISSUESU01-SOLDTOPARTY.
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_ISOFISSUESU01_STR, 
MANDT TYPE STRING,
SALESORDER TYPE STRING,
SALESORDERITEM TYPE STRING,
PURCHASINGDOCUMENT TYPE STRING,
PURCHASINGDOCUMENTITEM TYPE STRING,
ISSUE TYPE STRING,
ISSUECATEGORY TYPE STRING,
DUEDAYS TYPE STRING,
DUEDATE TYPE STRING,
DELIVERYDATE TYPE STRING,
NMBROFITEMSINSUPPLY TYPE STRING,
SALESORGANIZATION TYPE STRING,
DISTRIBUTIONCHANNEL TYPE STRING,
ORGANIZATIONDIVISION TYPE STRING,
SALESORDERTYPE TYPE STRING,
REQUESTEDDELIVERYDATE TYPE STRING,
OVERALLSDPROCESSSTATUS TYPE STRING,
SALESDOCUMENTDATE TYPE STRING,
SALESGROUP TYPE STRING,
SALESOFFICE TYPE STRING,
SOLDTOPARTY TYPE STRING,END OF T_EKKO_STR.
DATA: WA_ISOFISSUESU01_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_ISOFISSUESU01_STR-MANDT sy-vline 
WA_ISOFISSUESU01_STR-SALESORDER sy-vline 
WA_ISOFISSUESU01_STR-SALESORDERITEM sy-vline 
WA_ISOFISSUESU01_STR-PURCHASINGDOCUMENT sy-vline 
WA_ISOFISSUESU01_STR-PURCHASINGDOCUMENTITEM sy-vline 
WA_ISOFISSUESU01_STR-ISSUE sy-vline 
WA_ISOFISSUESU01_STR-ISSUECATEGORY sy-vline 
WA_ISOFISSUESU01_STR-DUEDAYS sy-vline 
WA_ISOFISSUESU01_STR-DUEDATE sy-vline 
WA_ISOFISSUESU01_STR-DELIVERYDATE sy-vline 
WA_ISOFISSUESU01_STR-NMBROFITEMSINSUPPLY sy-vline 
WA_ISOFISSUESU01_STR-SALESORGANIZATION sy-vline 
WA_ISOFISSUESU01_STR-DISTRIBUTIONCHANNEL sy-vline 
WA_ISOFISSUESU01_STR-ORGANIZATIONDIVISION sy-vline 
WA_ISOFISSUESU01_STR-SALESORDERTYPE sy-vline 
WA_ISOFISSUESU01_STR-REQUESTEDDELIVERYDATE sy-vline 
WA_ISOFISSUESU01_STR-OVERALLSDPROCESSSTATUS sy-vline 
WA_ISOFISSUESU01_STR-SALESDOCUMENTDATE sy-vline 
WA_ISOFISSUESU01_STR-SALESGROUP sy-vline 
WA_ISOFISSUESU01_STR-SALESOFFICE sy-vline 
WA_ISOFISSUESU01_STR-SOLDTOPARTY sy-vline      INTO ld_text SEPARATED BY SPACE.

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