ABAP Select data from SAP table OIJ05_SPWALERT into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP OIJ05_SPWALERT 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 OIJ05_SPWALERT. 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 OIJ05_SPWALERT 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_OIJ05_SPWALERT TYPE STANDARD TABLE OF OIJ05_SPWALERT,
      WA_OIJ05_SPWALERT TYPE OIJ05_SPWALERT,
      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: <OIJ05_SPWALERT> TYPE OIJ05_SPWALERT.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_OIJ05_SPWALERT.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM OIJ05_SPWALERT
  INTO TABLE IT_OIJ05_SPWALERT.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM OIJ05_SPWALERT
*  INTO TABLE @DATA(IT_OIJ05_SPWALERT2).
*--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_OIJ05_SPWALERT INDEX 1 INTO DATA(WA_OIJ05_SPWALERT2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_OIJ05_SPWALERT ASSIGNING <OIJ05_SPWALERT>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<OIJ05_SPWALERT>-MANDT = 1.
<OIJ05_SPWALERT>-UNAME = 1.
<OIJ05_SPWALERT>-ALERTKEY = 1.
<OIJ05_SPWALERT>-SPWFIELD = 1.
<OIJ05_SPWALERT>-OPERATOR = 1.

ENDLOOP.

LOOP AT IT_OIJ05_SPWALERT INTO WA_OIJ05_SPWALERT.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_OIJ05_SPWALERT-PERCENT, sy-vline,
  WA_OIJ05_SPWALERT-ATTRIBUTE, sy-vline,
  WA_OIJ05_SPWALERT-ICON, sy-vline,
  WA_OIJ05_SPWALERT-PRIORITY, sy-vline,
  WA_OIJ05_SPWALERT-CATEGORY, sy-vline,
  WA_OIJ05_SPWALERT-LOCID, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_OIJ05_SPWALERT 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_OIJ05_SPWALERT 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_OIJ05_SPWALERT INTO WA_OIJ05_SPWALERT.


*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.

*Conversion exit MATN1, internal->external for field MATNR
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_OIJ05_SPWALERT-MATNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_OIJ05_SPWALERT-MATNR.
WRITE:/ 'New Value:', ld_input.
ENDFORM. 

*&---------------------------------------------------------------------*
*& Form process_as_string_field_values
*&---------------------------------------------------------------------*
FORM process_as_string_field_values CHANGING p_EKKO LIKE wa_EKKO.

TYPES: BEGIN OF T_OIJ05_SPWALERT_STR, 
MANDT TYPE STRING,
UNAME TYPE STRING,
ALERTKEY TYPE STRING,
SPWFIELD TYPE STRING,
OPERATOR TYPE STRING,
PERCENT TYPE STRING,
ATTRIBUTE TYPE STRING,
ICON TYPE STRING,
PRIORITY TYPE STRING,
CATEGORY TYPE STRING,
LOCID TYPE STRING,
MATNR TYPE STRING,
VALID_FROM TYPE STRING,
VALID_TO TYPE STRING,
VAL_TYPE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_OIJ05_SPWALERT_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_OIJ05_SPWALERT_STR-MANDT sy-vline 
WA_OIJ05_SPWALERT_STR-UNAME sy-vline 
WA_OIJ05_SPWALERT_STR-ALERTKEY sy-vline 
WA_OIJ05_SPWALERT_STR-SPWFIELD sy-vline 
WA_OIJ05_SPWALERT_STR-OPERATOR sy-vline 
WA_OIJ05_SPWALERT_STR-PERCENT sy-vline 
WA_OIJ05_SPWALERT_STR-ATTRIBUTE sy-vline 
WA_OIJ05_SPWALERT_STR-ICON sy-vline 
WA_OIJ05_SPWALERT_STR-PRIORITY sy-vline 
WA_OIJ05_SPWALERT_STR-CATEGORY sy-vline 
WA_OIJ05_SPWALERT_STR-LOCID sy-vline 
WA_OIJ05_SPWALERT_STR-MATNR sy-vline 
WA_OIJ05_SPWALERT_STR-VALID_FROM sy-vline 
WA_OIJ05_SPWALERT_STR-VALID_TO sy-vline 
WA_OIJ05_SPWALERT_STR-VAL_TYPE sy-vline      INTO ld_text SEPARATED BY SPACE.

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