ABAP Select data from SAP table BPM_ALERT_DATA into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM BPM_ALERT_DATA
*  INTO TABLE @DATA(IT_BPM_ALERT_DATA2).
*--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_BPM_ALERT_DATA INDEX 1 INTO DATA(WA_BPM_ALERT_DATA2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<BPM_ALERT_DATA>-ROCANCEL = 1.
<BPM_ALERT_DATA>-ID = 1.
<BPM_ALERT_DATA>-UNAME = 1.
<BPM_ALERT_DATA>-ALERT_OID = 1.
<BPM_ALERT_DATA>-QUIT = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_BPM_ALERT_DATA-ESCAL, sy-vline,
  WA_BPM_ALERT_DATA-FORWARDED, sy-vline,
  WA_BPM_ALERT_DATA-ALREAD, sy-vline,
  WA_BPM_ALERT_DATA-CATEGORY, sy-vline,
  WA_BPM_ALERT_DATA-CREATIME, sy-vline,
  WA_BPM_ALERT_DATA-EXPIRYTIME, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_BPM_ALERT_DATA 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_BPM_ALERT_DATA 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_BPM_ALERT_DATA INTO WA_BPM_ALERT_DATA.


*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_BPM_ALERT_DATA_STR, 
ROCANCEL TYPE STRING,
ID TYPE STRING,
UNAME TYPE STRING,
ALERT_OID TYPE STRING,
QUIT TYPE STRING,
ESCAL TYPE STRING,
FORWARDED TYPE STRING,
ALREAD TYPE STRING,
CATEGORY TYPE STRING,
CREATIME TYPE STRING,
EXPIRYTIME TYPE STRING,
CNTDELVRY TYPE STRING,
STATUS TYPE STRING,
EXTERNALID TYPE STRING,END OF T_EKKO_STR.
DATA: WA_BPM_ALERT_DATA_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_BPM_ALERT_DATA_STR-ROCANCEL sy-vline 
WA_BPM_ALERT_DATA_STR-ID sy-vline 
WA_BPM_ALERT_DATA_STR-UNAME sy-vline 
WA_BPM_ALERT_DATA_STR-ALERT_OID sy-vline 
WA_BPM_ALERT_DATA_STR-QUIT sy-vline 
WA_BPM_ALERT_DATA_STR-ESCAL sy-vline 
WA_BPM_ALERT_DATA_STR-FORWARDED sy-vline 
WA_BPM_ALERT_DATA_STR-ALREAD sy-vline 
WA_BPM_ALERT_DATA_STR-CATEGORY sy-vline 
WA_BPM_ALERT_DATA_STR-CREATIME sy-vline 
WA_BPM_ALERT_DATA_STR-EXPIRYTIME sy-vline 
WA_BPM_ALERT_DATA_STR-CNTDELVRY sy-vline 
WA_BPM_ALERT_DATA_STR-STATUS sy-vline 
WA_BPM_ALERT_DATA_STR-EXTERNALID sy-vline      INTO ld_text SEPARATED BY SPACE.

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