ABAP Select data from SAP table /SDF/DB6ALRTCFG into internal table

Get Example source ABAP code based on a different SAP table
  Get ABAP code

Below is a number of ABAP code snippets to demonstrate how to select data from SAP /SDF/DB6ALRTCFG 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 /SDF/DB6ALRTCFG. 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 /SDF/DB6ALRTCFG 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_/SDF/DB6ALRTCFG TYPE STANDARD TABLE OF /SDF/DB6ALRTCFG,
      WA_/SDF/DB6ALRTCFG TYPE /SDF/DB6ALRTCFG,
      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: </SDF/DB6ALRTCFG> TYPE /SDF/DB6ALRTCFG.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_/SDF/DB6ALRTCFG.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM /SDF/DB6ALRTCFG
  INTO TABLE IT_/SDF/DB6ALRTCFG.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM /SDF/DB6ALRTCFG
*  INTO TABLE @DATA(IT_/SDF/DB6ALRTCFG2).
*--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_/SDF/DB6ALRTCFG INDEX 1 INTO DATA(WA_/SDF/DB6ALRTCFG2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_/SDF/DB6ALRTCFG ASSIGNING </SDF/DB6ALRTCFG>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
</SDF/DB6ALRTCFG>-COLLECTOR = 1.
</SDF/DB6ALRTCFG>-OBJECT = 1.
</SDF/DB6ALRTCFG>-ATTRIBUTE = 1.
</SDF/DB6ALRTCFG>-ALRTVALUE = 1.
</SDF/DB6ALRTCFG>-ALRTMSGNO = 1.

ENDLOOP.

LOOP AT IT_/SDF/DB6ALRTCFG INTO WA_/SDF/DB6ALRTCFG.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_/SDF/DB6ALRTCFG-REACTMSGNO, sy-vline,
  WA_/SDF/DB6ALRTCFG-OPERATOR, sy-vline,
  WA_/SDF/DB6ALRTCFG-PARAMLIST, sy-vline,
  WA_/SDF/DB6ALRTCFG-PARAMUNIT, sy-vline,
  WA_/SDF/DB6ALRTCFG-ATTRTYPE, sy-vline,
  WA_/SDF/DB6ALRTCFG-COMPONENT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_/SDF/DB6ALRTCFG 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_/SDF/DB6ALRTCFG 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_/SDF/DB6ALRTCFG INTO WA_/SDF/DB6ALRTCFG.


*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_/SDF/DB6ALRTCFG_STR, 
COLLECTOR TYPE STRING,
OBJECT TYPE STRING,
ATTRIBUTE TYPE STRING,
ALRTVALUE TYPE STRING,
ALRTMSGNO TYPE STRING,
REACTMSGNO TYPE STRING,
OPERATOR TYPE STRING,
PARAMLIST TYPE STRING,
PARAMUNIT TYPE STRING,
ATTRTYPE TYPE STRING,
COMPONENT TYPE STRING,
PARTITN TYPE STRING,
PATH TYPE STRING,
ACTIVE TYPE STRING,
CUSTOMIZE TYPE STRING,
REACT TYPE STRING,
MODDATE TYPE STRING,
MODUSER TYPE STRING,
MODCOMMENT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_/SDF/DB6ALRTCFG_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_/SDF/DB6ALRTCFG_STR-COLLECTOR sy-vline 
WA_/SDF/DB6ALRTCFG_STR-OBJECT sy-vline 
WA_/SDF/DB6ALRTCFG_STR-ATTRIBUTE sy-vline 
WA_/SDF/DB6ALRTCFG_STR-ALRTVALUE sy-vline 
WA_/SDF/DB6ALRTCFG_STR-ALRTMSGNO sy-vline 
WA_/SDF/DB6ALRTCFG_STR-REACTMSGNO sy-vline 
WA_/SDF/DB6ALRTCFG_STR-OPERATOR sy-vline 
WA_/SDF/DB6ALRTCFG_STR-PARAMLIST sy-vline 
WA_/SDF/DB6ALRTCFG_STR-PARAMUNIT sy-vline 
WA_/SDF/DB6ALRTCFG_STR-ATTRTYPE sy-vline 
WA_/SDF/DB6ALRTCFG_STR-COMPONENT sy-vline 
WA_/SDF/DB6ALRTCFG_STR-PARTITN sy-vline 
WA_/SDF/DB6ALRTCFG_STR-PATH sy-vline 
WA_/SDF/DB6ALRTCFG_STR-ACTIVE sy-vline 
WA_/SDF/DB6ALRTCFG_STR-CUSTOMIZE sy-vline 
WA_/SDF/DB6ALRTCFG_STR-REACT sy-vline 
WA_/SDF/DB6ALRTCFG_STR-MODDATE sy-vline 
WA_/SDF/DB6ALRTCFG_STR-MODUSER sy-vline 
WA_/SDF/DB6ALRTCFG_STR-MODCOMMENT sy-vline      INTO ld_text SEPARATED BY SPACE.

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