ABAP Select data from SAP table SITAGCYCDM into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM SITAGCYCDM
*  INTO TABLE @DATA(IT_SITAGCYCDM2).
*--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_SITAGCYCDM INDEX 1 INTO DATA(WA_SITAGCYCDM2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<SITAGCYCDM>-CLIENT = 1.
<SITAGCYCDM>-PLVAR = 1.
<SITAGCYCDM>-OTYPE = 1.
<SITAGCYCDM>-OBJID = 1.
<SITAGCYCDM>-CDESK = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_SITAGCYCDM-UNAME, sy-vline,
  WA_SITAGCYCDM-CRDATE, sy-vline,
  WA_SITAGCYCDM-CRNAME, sy-vline,
  WA_SITAGCYCDM-XCLOSED, sy-vline,
  WA_SITAGCYCDM-KEY, sy-vline,
  WA_SITAGCYCDM-TXTCD, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_SITAGCYCDM 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_SITAGCYCDM 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_SITAGCYCDM INTO WA_SITAGCYCDM.


*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_SITAGCYCDM_STR, 
CLIENT TYPE STRING,
PLVAR TYPE STRING,
OTYPE TYPE STRING,
OBJID TYPE STRING,
CDESK TYPE STRING,
UNAME TYPE STRING,
CRDATE TYPE STRING,
CRNAME TYPE STRING,
XCLOSED TYPE STRING,
KEY TYPE STRING,
TXTCD TYPE STRING,
SELECTABLE TYPE STRING,
TXTORG TYPE STRING,
TXTSELECTABLE TYPE STRING,
USERS TYPE STRING,END OF T_EKKO_STR.
DATA: WA_SITAGCYCDM_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_SITAGCYCDM_STR-CLIENT sy-vline 
WA_SITAGCYCDM_STR-PLVAR sy-vline 
WA_SITAGCYCDM_STR-OTYPE sy-vline 
WA_SITAGCYCDM_STR-OBJID sy-vline 
WA_SITAGCYCDM_STR-CDESK sy-vline 
WA_SITAGCYCDM_STR-UNAME sy-vline 
WA_SITAGCYCDM_STR-CRDATE sy-vline 
WA_SITAGCYCDM_STR-CRNAME sy-vline 
WA_SITAGCYCDM_STR-XCLOSED sy-vline 
WA_SITAGCYCDM_STR-KEY sy-vline 
WA_SITAGCYCDM_STR-TXTCD sy-vline 
WA_SITAGCYCDM_STR-SELECTABLE sy-vline 
WA_SITAGCYCDM_STR-TXTORG sy-vline 
WA_SITAGCYCDM_STR-TXTSELECTABLE sy-vline 
WA_SITAGCYCDM_STR-USERS sy-vline      INTO ld_text SEPARATED BY SPACE.

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