ABAP Select data from SAP table CREEXASSINTORDER into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CREEXASSINTORDER
*  INTO TABLE @DATA(IT_CREEXASSINTORDER2).
*--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_CREEXASSINTORDER INDEX 1 INTO DATA(WA_CREEXASSINTORDER2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<CREEXASSINTORDER>-MANDT = 1.
<CREEXASSINTORDER>-INTERNALORDER = 1.
<CREEXASSINTORDER>-INTERNALORDERDESCRIPTION = 1.
<CREEXASSINTORDER>-ORDERCATEGORY = 1.
<CREEXASSINTORDER>-BUSINESSAREA = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CREEXASSINTORDER-CONTROLLINGAREA, sy-vline,
  WA_CREEXASSINTORDER-PLANT, sy-vline,
  WA_CREEXASSINTORDER-CURRENCY, sy-vline,
  WA_CREEXASSINTORDER-CONTROLLINGOBJECT, sy-vline,
  WA_CREEXASSINTORDER-COMPANYCODE, sy-vline,
  WA_CREEXASSINTORDER-PROFITCENTER, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CREEXASSINTORDER 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_CREEXASSINTORDER 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_CREEXASSINTORDER INTO WA_CREEXASSINTORDER.


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

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

*Conversion exit ALPHA, internal->external for field RESPONSIBLECOSTCENTER
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_CREEXASSINTORDER-RESPONSIBLECOSTCENTER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CREEXASSINTORDER-RESPONSIBLECOSTCENTER.
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_CREEXASSINTORDER_STR, 
MANDT TYPE STRING,
INTERNALORDER TYPE STRING,
INTERNALORDERDESCRIPTION TYPE STRING,
ORDERCATEGORY TYPE STRING,
BUSINESSAREA TYPE STRING,
CONTROLLINGAREA TYPE STRING,
PLANT TYPE STRING,
CURRENCY TYPE STRING,
CONTROLLINGOBJECT TYPE STRING,
COMPANYCODE TYPE STRING,
PROFITCENTER TYPE STRING,
FUNCTIONALAREA TYPE STRING,
ORDERTYPE TYPE STRING,
RESPONSIBLECOSTCENTER TYPE STRING,
INTERNALORDERRESPONSIBLEUSER TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CREEXASSINTORDER_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_CREEXASSINTORDER_STR-MANDT sy-vline 
WA_CREEXASSINTORDER_STR-INTERNALORDER sy-vline 
WA_CREEXASSINTORDER_STR-INTERNALORDERDESCRIPTION sy-vline 
WA_CREEXASSINTORDER_STR-ORDERCATEGORY sy-vline 
WA_CREEXASSINTORDER_STR-BUSINESSAREA sy-vline 
WA_CREEXASSINTORDER_STR-CONTROLLINGAREA sy-vline 
WA_CREEXASSINTORDER_STR-PLANT sy-vline 
WA_CREEXASSINTORDER_STR-CURRENCY sy-vline 
WA_CREEXASSINTORDER_STR-CONTROLLINGOBJECT sy-vline 
WA_CREEXASSINTORDER_STR-COMPANYCODE sy-vline 
WA_CREEXASSINTORDER_STR-PROFITCENTER sy-vline 
WA_CREEXASSINTORDER_STR-FUNCTIONALAREA sy-vline 
WA_CREEXASSINTORDER_STR-ORDERTYPE sy-vline 
WA_CREEXASSINTORDER_STR-RESPONSIBLECOSTCENTER sy-vline 
WA_CREEXASSINTORDER_STR-INTERNALORDERRESPONSIBLEUSER sy-vline      INTO ld_text SEPARATED BY SPACE.

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