ABAP Select data from SAP table SXMSALERTINFO into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM SXMSALERTINFO
*  INTO TABLE @DATA(IT_SXMSALERTINFO2).
*--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_SXMSALERTINFO INDEX 1 INTO DATA(WA_SXMSALERTINFO2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<SXMSALERTINFO>-CONSUMER = 1.
<SXMSALERTINFO>-ALERTGUID = 1.
<SXMSALERTINFO>-ALERTRULEID = 1.
<SXMSALERTINFO>-COMPONENT = 1.
<SXMSALERTINFO>-ERRORLABEL = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_SXMSALERTINFO-CREATIONTIME, sy-vline,
  WA_SXMSALERTINFO-ERRORCODE, sy-vline,
  WA_SXMSALERTINFO-ERRORCAT, sy-vline,
  WA_SXMSALERTINFO-ERRTEXT, sy-vline,
  WA_SXMSALERTINFO-MSGGUID, sy-vline,
  WA_SXMSALERTINFO-FROMPARTY, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_SXMSALERTINFO 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_SXMSALERTINFO 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_SXMSALERTINFO INTO WA_SXMSALERTINFO.


*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_SXMSALERTINFO_STR, 
CONSUMER TYPE STRING,
ALERTGUID TYPE STRING,
ALERTRULEID TYPE STRING,
COMPONENT TYPE STRING,
ERRORLABEL TYPE STRING,
CREATIONTIME TYPE STRING,
ERRORCODE TYPE STRING,
ERRORCAT TYPE STRING,
ERRTEXT TYPE STRING,
MSGGUID TYPE STRING,
FROMPARTY TYPE STRING,
FROMSERVICE TYPE STRING,
TOPARTY TYPE STRING,
TOSERVICE TYPE STRING,
INTERFACE TYPE STRING,
INTERFACENS TYPE STRING,
UDSATTRS TYPE STRING,END OF T_EKKO_STR.
DATA: WA_SXMSALERTINFO_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_SXMSALERTINFO_STR-CONSUMER sy-vline 
WA_SXMSALERTINFO_STR-ALERTGUID sy-vline 
WA_SXMSALERTINFO_STR-ALERTRULEID sy-vline 
WA_SXMSALERTINFO_STR-COMPONENT sy-vline 
WA_SXMSALERTINFO_STR-ERRORLABEL sy-vline 
WA_SXMSALERTINFO_STR-CREATIONTIME sy-vline 
WA_SXMSALERTINFO_STR-ERRORCODE sy-vline 
WA_SXMSALERTINFO_STR-ERRORCAT sy-vline 
WA_SXMSALERTINFO_STR-ERRTEXT sy-vline 
WA_SXMSALERTINFO_STR-MSGGUID sy-vline 
WA_SXMSALERTINFO_STR-FROMPARTY sy-vline 
WA_SXMSALERTINFO_STR-FROMSERVICE sy-vline 
WA_SXMSALERTINFO_STR-TOPARTY sy-vline 
WA_SXMSALERTINFO_STR-TOSERVICE sy-vline 
WA_SXMSALERTINFO_STR-INTERFACE sy-vline 
WA_SXMSALERTINFO_STR-INTERFACENS sy-vline 
WA_SXMSALERTINFO_STR-UDSATTRS sy-vline      INTO ld_text SEPARATED BY SPACE.

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