ABAP Select data from SAP table SCIR_ALVLIST into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM SCIR_ALVLIST
*  INTO TABLE @DATA(IT_SCIR_ALVLIST2).
*--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_SCIR_ALVLIST INDEX 1 INTO DATA(WA_SCIR_ALVLIST2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<SCIR_ALVLIST>-OBJTYPE = 1.
<SCIR_ALVLIST>-OBJNAME = 1.
<SCIR_ALVLIST>-DEVCLASS = 1.
<SCIR_ALVLIST>-COMPONENT = 1.
<SCIR_ALVLIST>-AUTHOR = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_SCIR_ALVLIST-KIND, sy-vline,
  WA_SCIR_ALVLIST-TEXT, sy-vline,
  WA_SCIR_ALVLIST-DESCRIPTION, sy-vline,
  WA_SCIR_ALVLIST-TEST, sy-vline,
  WA_SCIR_ALVLIST-CODE, sy-vline,
  WA_SCIR_ALVLIST-SOBJTYPE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_SCIR_ALVLIST 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_SCIR_ALVLIST 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_SCIR_ALVLIST INTO WA_SCIR_ALVLIST.


*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_SCIR_ALVLIST_STR, 
OBJTYPE TYPE STRING,
OBJNAME TYPE STRING,
DEVCLASS TYPE STRING,
COMPONENT TYPE STRING,
AUTHOR TYPE STRING,
KIND TYPE STRING,
TEXT TYPE STRING,
DESCRIPTION TYPE STRING,
TEST TYPE STRING,
CODE TYPE STRING,
SOBJTYPE TYPE STRING,
SOBJNAME TYPE STRING,
LINE TYPE STRING,
COL TYPE STRING,
PARAM1 TYPE STRING,
PARAM2 TYPE STRING,
PARAM3 TYPE STRING,
PARAM4 TYPE STRING,
HELP TYPE STRING,
DETAIL TYPE STRING,END OF T_EKKO_STR.
DATA: WA_SCIR_ALVLIST_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_SCIR_ALVLIST_STR-OBJTYPE sy-vline 
WA_SCIR_ALVLIST_STR-OBJNAME sy-vline 
WA_SCIR_ALVLIST_STR-DEVCLASS sy-vline 
WA_SCIR_ALVLIST_STR-COMPONENT sy-vline 
WA_SCIR_ALVLIST_STR-AUTHOR sy-vline 
WA_SCIR_ALVLIST_STR-KIND sy-vline 
WA_SCIR_ALVLIST_STR-TEXT sy-vline 
WA_SCIR_ALVLIST_STR-DESCRIPTION sy-vline 
WA_SCIR_ALVLIST_STR-TEST sy-vline 
WA_SCIR_ALVLIST_STR-CODE sy-vline 
WA_SCIR_ALVLIST_STR-SOBJTYPE sy-vline 
WA_SCIR_ALVLIST_STR-SOBJNAME sy-vline 
WA_SCIR_ALVLIST_STR-LINE sy-vline 
WA_SCIR_ALVLIST_STR-COL sy-vline 
WA_SCIR_ALVLIST_STR-PARAM1 sy-vline 
WA_SCIR_ALVLIST_STR-PARAM2 sy-vline 
WA_SCIR_ALVLIST_STR-PARAM3 sy-vline 
WA_SCIR_ALVLIST_STR-PARAM4 sy-vline 
WA_SCIR_ALVLIST_STR-HELP sy-vline 
WA_SCIR_ALVLIST_STR-DETAIL sy-vline      INTO ld_text SEPARATED BY SPACE.

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