ABAP Select data from SAP table SIQ_VIEW_DBSPACE_DTL into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM SIQ_VIEW_DBSPACE_DTL
*  INTO TABLE @DATA(IT_SIQ_VIEW_DBSPACE_DTL2).
*--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_SIQ_VIEW_DBSPACE_DTL INDEX 1 INTO DATA(WA_SIQ_VIEW_DBSPACE_DTL2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<SIQ_VIEW_DBSPACE_DTL>-DBSPACES = 1.
<SIQ_VIEW_DBSPACE_DTL>-DBSPACENAME = 1.
<SIQ_VIEW_DBSPACE_DTL>-DBSPACETYPE = 1.
<SIQ_VIEW_DBSPACE_DTL>-WRITABLE = 1.
<SIQ_VIEW_DBSPACE_DTL>-DBSONLINE = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_SIQ_VIEW_DBSPACE_DTL-PERCENTUSED, sy-vline,
  WA_SIQ_VIEW_DBSPACE_DTL-TOTALSIZE, sy-vline,
  WA_SIQ_VIEW_DBSPACE_DTL-RESERVE, sy-vline,
  WA_SIQ_VIEW_DBSPACE_DTL-NUMFILES, sy-vline,
  WA_SIQ_VIEW_DBSPACE_DTL-NUMRWFILES, sy-vline,
  WA_SIQ_VIEW_DBSPACE_DTL-STRIPINGON, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_SIQ_VIEW_DBSPACE_DTL 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_SIQ_VIEW_DBSPACE_DTL 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_SIQ_VIEW_DBSPACE_DTL INTO WA_SIQ_VIEW_DBSPACE_DTL.


*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_SIQ_VIEW_DBSPACE_DTL_STR, 
DBSPACES TYPE STRING,
DBSPACENAME TYPE STRING,
DBSPACETYPE TYPE STRING,
WRITABLE TYPE STRING,
DBSONLINE TYPE STRING,
PERCENTUSED TYPE STRING,
TOTALSIZE TYPE STRING,
RESERVE TYPE STRING,
NUMFILES TYPE STRING,
NUMRWFILES TYPE STRING,
STRIPINGON TYPE STRING,
STRIPESIZE TYPE STRING,
BLKTYPES TYPE STRING,
OKTODROP TYPE STRING,
BGCOLOR TYPE STRING,
DBFILES TYPE STRING,
RLVTABLES TYPE STRING,
RLVMERGETABLES TYPE STRING,
DISPLAY_TABSTRIP TYPE STRING,END OF T_EKKO_STR.
DATA: WA_SIQ_VIEW_DBSPACE_DTL_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_SIQ_VIEW_DBSPACE_DTL_STR-DBSPACES sy-vline 
WA_SIQ_VIEW_DBSPACE_DTL_STR-DBSPACENAME sy-vline 
WA_SIQ_VIEW_DBSPACE_DTL_STR-DBSPACETYPE sy-vline 
WA_SIQ_VIEW_DBSPACE_DTL_STR-WRITABLE sy-vline 
WA_SIQ_VIEW_DBSPACE_DTL_STR-DBSONLINE sy-vline 
WA_SIQ_VIEW_DBSPACE_DTL_STR-PERCENTUSED sy-vline 
WA_SIQ_VIEW_DBSPACE_DTL_STR-TOTALSIZE sy-vline 
WA_SIQ_VIEW_DBSPACE_DTL_STR-RESERVE sy-vline 
WA_SIQ_VIEW_DBSPACE_DTL_STR-NUMFILES sy-vline 
WA_SIQ_VIEW_DBSPACE_DTL_STR-NUMRWFILES sy-vline 
WA_SIQ_VIEW_DBSPACE_DTL_STR-STRIPINGON sy-vline 
WA_SIQ_VIEW_DBSPACE_DTL_STR-STRIPESIZE sy-vline 
WA_SIQ_VIEW_DBSPACE_DTL_STR-BLKTYPES sy-vline 
WA_SIQ_VIEW_DBSPACE_DTL_STR-OKTODROP sy-vline 
WA_SIQ_VIEW_DBSPACE_DTL_STR-BGCOLOR sy-vline 
WA_SIQ_VIEW_DBSPACE_DTL_STR-DBFILES sy-vline 
WA_SIQ_VIEW_DBSPACE_DTL_STR-RLVTABLES sy-vline 
WA_SIQ_VIEW_DBSPACE_DTL_STR-RLVMERGETABLES sy-vline 
WA_SIQ_VIEW_DBSPACE_DTL_STR-DISPLAY_TABSTRIP sy-vline      INTO ld_text SEPARATED BY SPACE.

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