ABAP Select data from SAP table SIW_STR_EXPL_IMPLEMENTINGS 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_EXPL_IMPLEMENTINGS 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_EXPL_IMPLEMENTINGS. 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_EXPL_IMPLEMENTINGS 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_EXPL_IMPLEMENTINGS TYPE STANDARD TABLE OF SIW_STR_EXPL_IMPLEMENTINGS,
      WA_SIW_STR_EXPL_IMPLEMENTINGS TYPE SIW_STR_EXPL_IMPLEMENTINGS,
      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_EXPL_IMPLEMENTINGS> TYPE SIW_STR_EXPL_IMPLEMENTINGS.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM SIW_STR_EXPL_IMPLEMENTINGS
*  INTO TABLE @DATA(IT_SIW_STR_EXPL_IMPLEMENTINGS2).
*--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_EXPL_IMPLEMENTINGS INDEX 1 INTO DATA(WA_SIW_STR_EXPL_IMPLEMENTINGS2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<SIW_STR_EXPL_IMPLEMENTINGS>-STR_INTERFACE = 1.
<SIW_STR_EXPL_IMPLEMENTINGS>-CLSNAME = 1.
<SIW_STR_EXPL_IMPLEMENTINGS>-VERSION = 1.
<SIW_STR_EXPL_IMPLEMENTINGS>-LANGU = 1.
<SIW_STR_EXPL_IMPLEMENTINGS>-DESCRIPT = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_SIW_STR_EXPL_IMPLEMENTINGS-UUID, sy-vline,
  WA_SIW_STR_EXPL_IMPLEMENTINGS-CATEGORY, sy-vline,
  WA_SIW_STR_EXPL_IMPLEMENTINGS-EXPOSURE, sy-vline,
  WA_SIW_STR_EXPL_IMPLEMENTINGS-STATE, sy-vline,
  WA_SIW_STR_EXPL_IMPLEMENTINGS-RELEASE, sy-vline,
  WA_SIW_STR_EXPL_IMPLEMENTINGS-AUTHOR, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_SIW_STR_EXPL_IMPLEMENTINGS 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_EXPL_IMPLEMENTINGS 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_EXPL_IMPLEMENTINGS INTO WA_SIW_STR_EXPL_IMPLEMENTINGS.


*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 LANGU
CALL FUNCTION 'CONVERSION_EXIT_ISOLA_OUTPUT'
  EXPORTING
    input =                      WA_SIW_STR_EXPL_IMPLEMENTINGS-LANGU
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_SIW_STR_EXPL_IMPLEMENTINGS-LANGU.
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_EXPL_IMPLEMENTINGS_STR, 
STR_INTERFACE TYPE STRING,
CLSNAME TYPE STRING,
VERSION TYPE STRING,
LANGU TYPE STRING,
DESCRIPT TYPE STRING,
UUID TYPE STRING,
CATEGORY TYPE STRING,
EXPOSURE TYPE STRING,
STATE TYPE STRING,
RELEASE TYPE STRING,
AUTHOR TYPE STRING,
CREATEDON TYPE STRING,
CHANGEDBY TYPE STRING,
CHANGEDON TYPE STRING,
CHGDANYBY TYPE STRING,
CHGDANYON TYPE STRING,
REMOTE TYPE STRING,
UNICODE TYPE STRING,
R3RELEASE TYPE STRING,
CLSPROXY TYPE STRING,
TAB_METHODS TYPE STRING,END OF T_EKKO_STR.
DATA: WA_SIW_STR_EXPL_IMPLEMENTINGS_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_EXPL_IMPLEMENTINGS_STR-STR_INTERFACE sy-vline 
WA_SIW_STR_EXPL_IMPLEMENTINGS_STR-CLSNAME sy-vline 
WA_SIW_STR_EXPL_IMPLEMENTINGS_STR-VERSION sy-vline 
WA_SIW_STR_EXPL_IMPLEMENTINGS_STR-LANGU sy-vline 
WA_SIW_STR_EXPL_IMPLEMENTINGS_STR-DESCRIPT sy-vline 
WA_SIW_STR_EXPL_IMPLEMENTINGS_STR-UUID sy-vline 
WA_SIW_STR_EXPL_IMPLEMENTINGS_STR-CATEGORY sy-vline 
WA_SIW_STR_EXPL_IMPLEMENTINGS_STR-EXPOSURE sy-vline 
WA_SIW_STR_EXPL_IMPLEMENTINGS_STR-STATE sy-vline 
WA_SIW_STR_EXPL_IMPLEMENTINGS_STR-RELEASE sy-vline 
WA_SIW_STR_EXPL_IMPLEMENTINGS_STR-AUTHOR sy-vline 
WA_SIW_STR_EXPL_IMPLEMENTINGS_STR-CREATEDON sy-vline 
WA_SIW_STR_EXPL_IMPLEMENTINGS_STR-CHANGEDBY sy-vline 
WA_SIW_STR_EXPL_IMPLEMENTINGS_STR-CHANGEDON sy-vline 
WA_SIW_STR_EXPL_IMPLEMENTINGS_STR-CHGDANYBY sy-vline 
WA_SIW_STR_EXPL_IMPLEMENTINGS_STR-CHGDANYON sy-vline 
WA_SIW_STR_EXPL_IMPLEMENTINGS_STR-REMOTE sy-vline 
WA_SIW_STR_EXPL_IMPLEMENTINGS_STR-UNICODE sy-vline 
WA_SIW_STR_EXPL_IMPLEMENTINGS_STR-R3RELEASE sy-vline 
WA_SIW_STR_EXPL_IMPLEMENTINGS_STR-CLSPROXY sy-vline 
WA_SIW_STR_EXPL_IMPLEMENTINGS_STR-TAB_METHODS sy-vline      INTO ld_text SEPARATED BY SPACE.

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