ABAP Select data from SAP table WSRM_EVENT_TABLE into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM WSRM_EVENT_TABLE
*  INTO TABLE @DATA(IT_WSRM_EVENT_TABLE2).
*--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_WSRM_EVENT_TABLE INDEX 1 INTO DATA(WA_WSRM_EVENT_TABLE2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<WSRM_EVENT_TABLE>-WSRM_MANDT = 1.
<WSRM_EVENT_TABLE>-WSRM_UUID = 1.
<WSRM_EVENT_TABLE>-WSRM_PERSIST_ID = 1.
<WSRM_EVENT_TABLE>-WSRM_SEQUENCE_ID = 1.
<WSRM_EVENT_TABLE>-WSRM_MSG_NBR = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_WSRM_EVENT_TABLE-WSRM_DOMAIN_NAME, sy-vline,
  WA_WSRM_EVENT_TABLE-WSRM_SEQU_NAME, sy-vline,
  WA_WSRM_EVENT_TABLE-WSRM_DIRECTION, sy-vline,
  WA_WSRM_EVENT_TABLE-WSRM_EVENT_TYPE, sy-vline,
  WA_WSRM_EVENT_TABLE-WSRM_PRIORITY, sy-vline,
  WA_WSRM_EVENT_TABLE-WSRM_DATE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_WSRM_EVENT_TABLE 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_WSRM_EVENT_TABLE 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_WSRM_EVENT_TABLE INTO WA_WSRM_EVENT_TABLE.


*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_WSRM_EVENT_TABLE_STR, 
WSRM_MANDT TYPE STRING,
WSRM_UUID TYPE STRING,
WSRM_PERSIST_ID TYPE STRING,
WSRM_SEQUENCE_ID TYPE STRING,
WSRM_MSG_NBR TYPE STRING,
WSRM_DOMAIN_NAME TYPE STRING,
WSRM_SEQU_NAME TYPE STRING,
WSRM_DIRECTION TYPE STRING,
WSRM_EVENT_TYPE TYPE STRING,
WSRM_PRIORITY TYPE STRING,
WSRM_DATE TYPE STRING,
WSRM_TIME TYPE STRING,
WSRM_TIMESTAMP TYPE STRING,
WSRM_RETR_VAL TYPE STRING,
WSRM_INACT_VAL TYPE STRING,
WSRM_ACK_VAL TYPE STRING,
WSRM_EXPIRE_VAL TYPE STRING,
WSRM_RETR_INTVAL TYPE STRING,
WSRM_INAC_INTVAL TYPE STRING,
WSRM_ACK_INTVAL TYPE STRING,
WSRM_RETR_CNT TYPE STRING,
WSRM_ACK_CNT TYPE STRING,
WSRM_DELAY_CNT TYPE STRING,
WSRM_DUMP_EXIST TYPE STRING,
WSRM_DUMP_DEPEND TYPE STRING,
WSRM_SAPUSER TYPE STRING,
WSRM_SECTORNO TYPE STRING,
WSRM_TRACE_LEVEL TYPE STRING,
WSRM_APPLID TYPE STRING,
WSRM_TRANSID TYPE STRING,END OF T_EKKO_STR.
DATA: WA_WSRM_EVENT_TABLE_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_WSRM_EVENT_TABLE_STR-WSRM_MANDT sy-vline 
WA_WSRM_EVENT_TABLE_STR-WSRM_UUID sy-vline 
WA_WSRM_EVENT_TABLE_STR-WSRM_PERSIST_ID sy-vline 
WA_WSRM_EVENT_TABLE_STR-WSRM_SEQUENCE_ID sy-vline 
WA_WSRM_EVENT_TABLE_STR-WSRM_MSG_NBR sy-vline 
WA_WSRM_EVENT_TABLE_STR-WSRM_DOMAIN_NAME sy-vline 
WA_WSRM_EVENT_TABLE_STR-WSRM_SEQU_NAME sy-vline 
WA_WSRM_EVENT_TABLE_STR-WSRM_DIRECTION sy-vline 
WA_WSRM_EVENT_TABLE_STR-WSRM_EVENT_TYPE sy-vline 
WA_WSRM_EVENT_TABLE_STR-WSRM_PRIORITY sy-vline 
WA_WSRM_EVENT_TABLE_STR-WSRM_DATE sy-vline 
WA_WSRM_EVENT_TABLE_STR-WSRM_TIME sy-vline 
WA_WSRM_EVENT_TABLE_STR-WSRM_TIMESTAMP sy-vline 
WA_WSRM_EVENT_TABLE_STR-WSRM_RETR_VAL sy-vline 
WA_WSRM_EVENT_TABLE_STR-WSRM_INACT_VAL sy-vline 
WA_WSRM_EVENT_TABLE_STR-WSRM_ACK_VAL sy-vline 
WA_WSRM_EVENT_TABLE_STR-WSRM_EXPIRE_VAL sy-vline 
WA_WSRM_EVENT_TABLE_STR-WSRM_RETR_INTVAL sy-vline 
WA_WSRM_EVENT_TABLE_STR-WSRM_INAC_INTVAL sy-vline 
WA_WSRM_EVENT_TABLE_STR-WSRM_ACK_INTVAL sy-vline 
WA_WSRM_EVENT_TABLE_STR-WSRM_RETR_CNT sy-vline 
WA_WSRM_EVENT_TABLE_STR-WSRM_ACK_CNT sy-vline 
WA_WSRM_EVENT_TABLE_STR-WSRM_DELAY_CNT sy-vline 
WA_WSRM_EVENT_TABLE_STR-WSRM_DUMP_EXIST sy-vline 
WA_WSRM_EVENT_TABLE_STR-WSRM_DUMP_DEPEND sy-vline 
WA_WSRM_EVENT_TABLE_STR-WSRM_SAPUSER sy-vline 
WA_WSRM_EVENT_TABLE_STR-WSRM_SECTORNO sy-vline 
WA_WSRM_EVENT_TABLE_STR-WSRM_TRACE_LEVEL sy-vline 
WA_WSRM_EVENT_TABLE_STR-WSRM_APPLID sy-vline 
WA_WSRM_EVENT_TABLE_STR-WSRM_TRANSID sy-vline      INTO ld_text SEPARATED BY SPACE.

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