ABAP Select data from SAP table SIBRSTM_HEAD_DEFAULT into internal table

Get Example source ABAP code based on a different SAP table
  Get ABAP code

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM SIBRSTM_HEAD_DEFAULT
*  INTO TABLE @DATA(IT_SIBRSTM_HEAD_DEFAULT2).
*--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_SIBRSTM_HEAD_DEFAULT INDEX 1 INTO DATA(WA_SIBRSTM_HEAD_DEFAULT2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<SIBRSTM_HEAD_DEFAULT>-SRCHKEY = 1.
<SIBRSTM_HEAD_DEFAULT>-PERDFROM = 1.
<SIBRSTM_HEAD_DEFAULT>-PERDTO = 1.
<SIBRSTM_HEAD_DEFAULT>-REPTYPE = 1.
<SIBRSTM_HEAD_DEFAULT>-INITREAS = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_SIBRSTM_HEAD_DEFAULT-FIKEY, sy-vline,
  WA_SIBRSTM_HEAD_DEFAULT-COMPCODE, sy-vline,
  WA_SIBRSTM_HEAD_DEFAULT-BUISAREA, sy-vline,
  WA_SIBRSTM_HEAD_DEFAULT-CLEARACC, sy-vline,
  WA_SIBRSTM_HEAD_DEFAULT-CURR, sy-vline,
  WA_SIBRSTM_HEAD_DEFAULT-EXCHRATE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_SIBRSTM_HEAD_DEFAULT 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_SIBRSTM_HEAD_DEFAULT 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_SIBRSTM_HEAD_DEFAULT INTO WA_SIBRSTM_HEAD_DEFAULT.


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

*Conversion exit EXCRT, internal->external for field EXCHRATE
CALL FUNCTION 'CONVERSION_EXIT_EXCRT_OUTPUT'
  EXPORTING
    input =                      WA_SIBRSTM_HEAD_DEFAULT-EXCHRATE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_SIBRSTM_HEAD_DEFAULT-EXCHRATE.
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_SIBRSTM_HEAD_DEFAULT_STR, 
SRCHKEY TYPE STRING,
PERDFROM TYPE STRING,
PERDTO TYPE STRING,
REPTYPE TYPE STRING,
INITREAS TYPE STRING,
FIKEY TYPE STRING,
COMPCODE TYPE STRING,
BUISAREA TYPE STRING,
CLEARACC TYPE STRING,
CURR TYPE STRING,
EXCHRATE TYPE STRING,
POSTDATE TYPE STRING,
DOCDATE TYPE STRING,
VALDATE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_SIBRSTM_HEAD_DEFAULT_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_SIBRSTM_HEAD_DEFAULT_STR-SRCHKEY sy-vline 
WA_SIBRSTM_HEAD_DEFAULT_STR-PERDFROM sy-vline 
WA_SIBRSTM_HEAD_DEFAULT_STR-PERDTO sy-vline 
WA_SIBRSTM_HEAD_DEFAULT_STR-REPTYPE sy-vline 
WA_SIBRSTM_HEAD_DEFAULT_STR-INITREAS sy-vline 
WA_SIBRSTM_HEAD_DEFAULT_STR-FIKEY sy-vline 
WA_SIBRSTM_HEAD_DEFAULT_STR-COMPCODE sy-vline 
WA_SIBRSTM_HEAD_DEFAULT_STR-BUISAREA sy-vline 
WA_SIBRSTM_HEAD_DEFAULT_STR-CLEARACC sy-vline 
WA_SIBRSTM_HEAD_DEFAULT_STR-CURR sy-vline 
WA_SIBRSTM_HEAD_DEFAULT_STR-EXCHRATE sy-vline 
WA_SIBRSTM_HEAD_DEFAULT_STR-POSTDATE sy-vline 
WA_SIBRSTM_HEAD_DEFAULT_STR-DOCDATE sy-vline 
WA_SIBRSTM_HEAD_DEFAULT_STR-VALDATE sy-vline      INTO ld_text SEPARATED BY SPACE.

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