ABAP Select data from SAP table SIW_STR_FUNCINFO into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM SIW_STR_FUNCINFO
*  INTO TABLE @DATA(IT_SIW_STR_FUNCINFO2).
*--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_SIW_STR_FUNCINFO INDEX 1 INTO DATA(WA_SIW_STR_FUNCINFO2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<SIW_STR_FUNCINFO>-INCLUDE = 1.
<SIW_STR_FUNCINFO>-MAINPROG = 1.
<SIW_STR_FUNCINFO>-FUNCPOOL = 1.
<SIW_STR_FUNCINFO>-DEVCLASS = 1.
<SIW_STR_FUNCINFO>-TOPINCLUDE = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_SIW_STR_FUNCINFO-STR_SIGNATURE, sy-vline,
  WA_SIW_STR_FUNCINFO-TAB_IMP, sy-vline,
  WA_SIW_STR_FUNCINFO-TAB_EXP, sy-vline,
  WA_SIW_STR_FUNCINFO-TAB_CHA, sy-vline,
  WA_SIW_STR_FUNCINFO-TAB_TBL, sy-vline,
  WA_SIW_STR_FUNCINFO-TAB_EXC, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_SIW_STR_FUNCINFO 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_SIW_STR_FUNCINFO 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_SIW_STR_FUNCINFO INTO WA_SIW_STR_FUNCINFO.


*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 ISOLA, internal->external for field MASTERLANG
CALL FUNCTION 'CONVERSION_EXIT_ISOLA_OUTPUT'
  EXPORTING
    input =                      WA_SIW_STR_FUNCINFO-MASTERLANG
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_SIW_STR_FUNCINFO-MASTERLANG.
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_SIW_STR_FUNCINFO_STR, 
INCLUDE TYPE STRING,
MAINPROG TYPE STRING,
FUNCPOOL TYPE STRING,
DEVCLASS TYPE STRING,
TOPINCLUDE TYPE STRING,
STR_SIGNATURE TYPE STRING,
TAB_IMP TYPE STRING,
TAB_EXP TYPE STRING,
TAB_CHA TYPE STRING,
TAB_TBL TYPE STRING,
TAB_EXC TYPE STRING,
TAB_EXC_CLASS TYPE STRING,
TAB_FDO TYPE STRING,
TAB_SIGNATURE_CODE TYPE STRING,
STR_ATTRIBUTES TYPE STRING,
INTERFACE_GLOBAL TYPE STRING,
REMOTE_CALL TYPE STRING,
SHORT_TEXT TYPE STRING,
UPDATE_TASK TYPE STRING,
EXCEPTION_CLASS TYPE STRING,
DOCU_TEXT TYPE STRING,
MASTERLANG TYPE STRING,END OF T_EKKO_STR.
DATA: WA_SIW_STR_FUNCINFO_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_SIW_STR_FUNCINFO_STR-INCLUDE sy-vline 
WA_SIW_STR_FUNCINFO_STR-MAINPROG sy-vline 
WA_SIW_STR_FUNCINFO_STR-FUNCPOOL sy-vline 
WA_SIW_STR_FUNCINFO_STR-DEVCLASS sy-vline 
WA_SIW_STR_FUNCINFO_STR-TOPINCLUDE sy-vline 
WA_SIW_STR_FUNCINFO_STR-STR_SIGNATURE sy-vline 
WA_SIW_STR_FUNCINFO_STR-TAB_IMP sy-vline 
WA_SIW_STR_FUNCINFO_STR-TAB_EXP sy-vline 
WA_SIW_STR_FUNCINFO_STR-TAB_CHA sy-vline 
WA_SIW_STR_FUNCINFO_STR-TAB_TBL sy-vline 
WA_SIW_STR_FUNCINFO_STR-TAB_EXC sy-vline 
WA_SIW_STR_FUNCINFO_STR-TAB_EXC_CLASS sy-vline 
WA_SIW_STR_FUNCINFO_STR-TAB_FDO sy-vline 
WA_SIW_STR_FUNCINFO_STR-TAB_SIGNATURE_CODE sy-vline 
WA_SIW_STR_FUNCINFO_STR-STR_ATTRIBUTES sy-vline 
WA_SIW_STR_FUNCINFO_STR-INTERFACE_GLOBAL sy-vline 
WA_SIW_STR_FUNCINFO_STR-REMOTE_CALL sy-vline 
WA_SIW_STR_FUNCINFO_STR-SHORT_TEXT sy-vline 
WA_SIW_STR_FUNCINFO_STR-UPDATE_TASK sy-vline 
WA_SIW_STR_FUNCINFO_STR-EXCEPTION_CLASS sy-vline 
WA_SIW_STR_FUNCINFO_STR-DOCU_TEXT sy-vline 
WA_SIW_STR_FUNCINFO_STR-MASTERLANG sy-vline      INTO ld_text SEPARATED BY SPACE.

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