ABAP Select data from SAP table SIW_STR_SEOIMPLEMENT 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_SEOIMPLEMENT 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_SEOIMPLEMENT. 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_SEOIMPLEMENT 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_SEOIMPLEMENT TYPE STANDARD TABLE OF SIW_STR_SEOIMPLEMENT,
      WA_SIW_STR_SEOIMPLEMENT TYPE SIW_STR_SEOIMPLEMENT,
      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_SEOIMPLEMENT> TYPE SIW_STR_SEOIMPLEMENT.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM SIW_STR_SEOIMPLEMENT
*  INTO TABLE @DATA(IT_SIW_STR_SEOIMPLEMENT2).
*--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_SEOIMPLEMENT INDEX 1 INTO DATA(WA_SIW_STR_SEOIMPLEMENT2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<SIW_STR_SEOIMPLEMENT>-CLSNAME = 1.
<SIW_STR_SEOIMPLEMENT>-REFCLSNAME = 1.
<SIW_STR_SEOIMPLEMENT>-VERSION = 1.
<SIW_STR_SEOIMPLEMENT>-EXPOSURE = 1.
<SIW_STR_SEOIMPLEMENT>-STATE = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_SIW_STR_SEOIMPLEMENT-AUTHOR, sy-vline,
  WA_SIW_STR_SEOIMPLEMENT-CREATEDON, sy-vline,
  WA_SIW_STR_SEOIMPLEMENT-CHANGEDBY, sy-vline,
  WA_SIW_STR_SEOIMPLEMENT-CHANGEDON, sy-vline,
  WA_SIW_STR_SEOIMPLEMENT-RELTYPE, sy-vline,
  WA_SIW_STR_SEOIMPLEMENT-RELNAME, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_SIW_STR_SEOIMPLEMENT 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_SEOIMPLEMENT 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_SEOIMPLEMENT INTO WA_SIW_STR_SEOIMPLEMENT.


*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_SIW_STR_SEOIMPLEMENT_STR, 
CLSNAME TYPE STRING,
REFCLSNAME TYPE STRING,
VERSION TYPE STRING,
EXPOSURE TYPE STRING,
STATE TYPE STRING,
AUTHOR TYPE STRING,
CREATEDON TYPE STRING,
CHANGEDBY TYPE STRING,
CHANGEDON TYPE STRING,
RELTYPE TYPE STRING,
RELNAME TYPE STRING,
IMPFINAL TYPE STRING,
IMPABSTRCT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_SIW_STR_SEOIMPLEMENT_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_SEOIMPLEMENT_STR-CLSNAME sy-vline 
WA_SIW_STR_SEOIMPLEMENT_STR-REFCLSNAME sy-vline 
WA_SIW_STR_SEOIMPLEMENT_STR-VERSION sy-vline 
WA_SIW_STR_SEOIMPLEMENT_STR-EXPOSURE sy-vline 
WA_SIW_STR_SEOIMPLEMENT_STR-STATE sy-vline 
WA_SIW_STR_SEOIMPLEMENT_STR-AUTHOR sy-vline 
WA_SIW_STR_SEOIMPLEMENT_STR-CREATEDON sy-vline 
WA_SIW_STR_SEOIMPLEMENT_STR-CHANGEDBY sy-vline 
WA_SIW_STR_SEOIMPLEMENT_STR-CHANGEDON sy-vline 
WA_SIW_STR_SEOIMPLEMENT_STR-RELTYPE sy-vline 
WA_SIW_STR_SEOIMPLEMENT_STR-RELNAME sy-vline 
WA_SIW_STR_SEOIMPLEMENT_STR-IMPFINAL sy-vline 
WA_SIW_STR_SEOIMPLEMENT_STR-IMPABSTRCT sy-vline      INTO ld_text SEPARATED BY SPACE.

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