ABAP Select data from SAP table SITAGCYDIFFMODELCTRL into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM SITAGCYDIFFMODELCTRL
*  INTO TABLE @DATA(IT_SITAGCYDIFFMODELCTRL2).
*--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_SITAGCYDIFFMODELCTRL INDEX 1 INTO DATA(WA_SITAGCYDIFFMODELCTRL2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<SITAGCYDIFFMODELCTRL>-DIFFCALLER = 1.
<SITAGCYDIFFMODELCTRL>-XOUTGOING_PAYMENT = 1.
<SITAGCYDIFFMODELCTRL>-OPENITEMAMOUNT = 1.
<SITAGCYDIFFMODELCTRL>-PAYMENTAMOUNT = 1.
<SITAGCYDIFFMODELCTRL>-DIFFERENCE = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_SITAGCYDIFFMODELCTRL-CURRENCY, sy-vline,
  WA_SITAGCYDIFFMODELCTRL-COLLDATE, sy-vline,
  WA_SITAGCYDIFFMODELCTRL-OPENITEMS, sy-vline,
  WA_SITAGCYDIFFMODELCTRL-PARINS, sy-vline,
  WA_SITAGCYDIFFMODELCTRL-XNOTRAY, sy-vline,
  WA_SITAGCYDIFFMODELCTRL-TEMPCLARITEMS, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_SITAGCYDIFFMODELCTRL 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_SITAGCYDIFFMODELCTRL 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_SITAGCYDIFFMODELCTRL INTO WA_SITAGCYDIFFMODELCTRL.


*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.
ENDFORM. 

*&---------------------------------------------------------------------*
*& Form process_as_string_field_values
*&---------------------------------------------------------------------*
FORM process_as_string_field_values CHANGING p_EKKO LIKE wa_EKKO.

TYPES: BEGIN OF T_SITAGCYDIFFMODELCTRL_STR, 
DIFFCALLER TYPE STRING,
XOUTGOING_PAYMENT TYPE STRING,
OPENITEMAMOUNT TYPE STRING,
PAYMENTAMOUNT TYPE STRING,
DIFFERENCE TYPE STRING,
CURRENCY TYPE STRING,
COLLDATE TYPE STRING,
OPENITEMS TYPE STRING,
PARINS TYPE STRING,
XNOTRAY TYPE STRING,
TEMPCLARITEMS TYPE STRING,END OF T_EKKO_STR.
DATA: WA_SITAGCYDIFFMODELCTRL_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_SITAGCYDIFFMODELCTRL_STR-DIFFCALLER sy-vline 
WA_SITAGCYDIFFMODELCTRL_STR-XOUTGOING_PAYMENT sy-vline 
WA_SITAGCYDIFFMODELCTRL_STR-OPENITEMAMOUNT sy-vline 
WA_SITAGCYDIFFMODELCTRL_STR-PAYMENTAMOUNT sy-vline 
WA_SITAGCYDIFFMODELCTRL_STR-DIFFERENCE sy-vline 
WA_SITAGCYDIFFMODELCTRL_STR-CURRENCY sy-vline 
WA_SITAGCYDIFFMODELCTRL_STR-COLLDATE sy-vline 
WA_SITAGCYDIFFMODELCTRL_STR-OPENITEMS sy-vline 
WA_SITAGCYDIFFMODELCTRL_STR-PARINS sy-vline 
WA_SITAGCYDIFFMODELCTRL_STR-XNOTRAY sy-vline 
WA_SITAGCYDIFFMODELCTRL_STR-TEMPCLARITEMS sy-vline      INTO ld_text SEPARATED BY SPACE.

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