ABAP Select data from SAP table SITAGCYCFDATA into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM SITAGCYCFDATA
*  INTO TABLE @DATA(IT_SITAGCYCFDATA2).
*--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_SITAGCYCFDATA INDEX 1 INTO DATA(WA_SITAGCYCFDATA2).


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

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

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_SITAGCYCFDATA-CDESK, sy-vline,
  WA_SITAGCYCFDATA-CRDATE, sy-vline,
  WA_SITAGCYCFDATA-SEQNO, sy-vline,
  WA_SITAGCYCFDATA-PAYMT, sy-vline,
  WA_SITAGCYCFDATA-COMPCODE, sy-vline,
  WA_SITAGCYCFDATA-CURRENCY, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_SITAGCYCFDATA 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_SITAGCYCFDATA 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_SITAGCYCFDATA INTO WA_SITAGCYCFDATA.


*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 CHCKN
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_SITAGCYCFDATA-CHCKN
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_SITAGCYCFDATA-CHCKN.
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_SITAGCYCFDATA_STR, 
GUID TYPE STRING,
CLIENT TYPE STRING,
PLVAR TYPE STRING,
OTYPE TYPE STRING,
OBJID TYPE STRING,
CDESK TYPE STRING,
CRDATE TYPE STRING,
SEQNO TYPE STRING,
PAYMT TYPE STRING,
COMPCODE TYPE STRING,
CURRENCY TYPE STRING,
AMOUNT TYPE STRING,
CHCKN TYPE STRING,
WDSTATUS TYPE STRING,
WDAMOUNT TYPE STRING,
WDCURRENCY TYPE STRING,
CFDATE TYPE STRING,
CFSEQNO TYPE STRING,
CRTIME TYPE STRING,
WDDATA TYPE STRING,END OF T_EKKO_STR.
DATA: WA_SITAGCYCFDATA_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_SITAGCYCFDATA_STR-GUID sy-vline 
WA_SITAGCYCFDATA_STR-CLIENT sy-vline 
WA_SITAGCYCFDATA_STR-PLVAR sy-vline 
WA_SITAGCYCFDATA_STR-OTYPE sy-vline 
WA_SITAGCYCFDATA_STR-OBJID sy-vline 
WA_SITAGCYCFDATA_STR-CDESK sy-vline 
WA_SITAGCYCFDATA_STR-CRDATE sy-vline 
WA_SITAGCYCFDATA_STR-SEQNO sy-vline 
WA_SITAGCYCFDATA_STR-PAYMT sy-vline 
WA_SITAGCYCFDATA_STR-COMPCODE sy-vline 
WA_SITAGCYCFDATA_STR-CURRENCY sy-vline 
WA_SITAGCYCFDATA_STR-AMOUNT sy-vline 
WA_SITAGCYCFDATA_STR-CHCKN sy-vline 
WA_SITAGCYCFDATA_STR-WDSTATUS sy-vline 
WA_SITAGCYCFDATA_STR-WDAMOUNT sy-vline 
WA_SITAGCYCFDATA_STR-WDCURRENCY sy-vline 
WA_SITAGCYCFDATA_STR-CFDATE sy-vline 
WA_SITAGCYCFDATA_STR-CFSEQNO sy-vline 
WA_SITAGCYCFDATA_STR-CRTIME sy-vline 
WA_SITAGCYCFDATA_STR-WDDATA sy-vline      INTO ld_text SEPARATED BY SPACE.

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