ABAP Select data from SAP table SELECTVIEW into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM SELECTVIEW
*  INTO TABLE @DATA(IT_SELECTVIEW2).
*--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_SELECTVIEW INDEX 1 INTO DATA(WA_SELECTVIEW2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<SELECTVIEW>-JOBNAME = 1.
<SELECTVIEW>-LOWDATE = 1.
<SELECTVIEW>-UPPDATE = 1.
<SELECTVIEW>-LOWTIME = 1.
<SELECTVIEW>-UPPTIME = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_SELECTVIEW-ACTIV, sy-vline,
  WA_SELECTVIEW-READY, sy-vline,
  WA_SELECTVIEW-ABORT, sy-vline,
  WA_SELECTVIEW-DURATION, sy-vline,
  WA_SELECTVIEW-DELAY, sy-vline,
  WA_SELECTVIEW-DIFFTIMSEC, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_SELECTVIEW 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_SELECTVIEW 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_SELECTVIEW INTO WA_SELECTVIEW.


*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_SELECTVIEW_STR, 
JOBNAME TYPE STRING,
LOWDATE TYPE STRING,
UPPDATE TYPE STRING,
LOWTIME TYPE STRING,
UPPTIME TYPE STRING,
ACTIV TYPE STRING,
READY TYPE STRING,
ABORT TYPE STRING,
DURATION TYPE STRING,
DELAY TYPE STRING,
DIFFTIMSEC TYPE STRING,
SDLUNAME TYPE STRING,END OF T_EKKO_STR.
DATA: WA_SELECTVIEW_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_SELECTVIEW_STR-JOBNAME sy-vline 
WA_SELECTVIEW_STR-LOWDATE sy-vline 
WA_SELECTVIEW_STR-UPPDATE sy-vline 
WA_SELECTVIEW_STR-LOWTIME sy-vline 
WA_SELECTVIEW_STR-UPPTIME sy-vline 
WA_SELECTVIEW_STR-ACTIV sy-vline 
WA_SELECTVIEW_STR-READY sy-vline 
WA_SELECTVIEW_STR-ABORT sy-vline 
WA_SELECTVIEW_STR-DURATION sy-vline 
WA_SELECTVIEW_STR-DELAY sy-vline 
WA_SELECTVIEW_STR-DIFFTIMSEC sy-vline 
WA_SELECTVIEW_STR-SDLUNAME sy-vline      INTO ld_text SEPARATED BY SPACE.

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