ABAP Select data from SAP table WSRM_PID_SID_MNR into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP WSRM_PID_SID_MNR 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_PID_SID_MNR. 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_PID_SID_MNR 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_PID_SID_MNR TYPE STANDARD TABLE OF WSRM_PID_SID_MNR,
      WA_WSRM_PID_SID_MNR TYPE WSRM_PID_SID_MNR,
      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_PID_SID_MNR> TYPE WSRM_PID_SID_MNR.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM WSRM_PID_SID_MNR
*  INTO TABLE @DATA(IT_WSRM_PID_SID_MNR2).
*--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_PID_SID_MNR INDEX 1 INTO DATA(WA_WSRM_PID_SID_MNR2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<WSRM_PID_SID_MNR>-WSRM_MANDT = 1.
<WSRM_PID_SID_MNR>-WSRM_PERSIST_ID = 1.
<WSRM_PID_SID_MNR>-WSRM_SEQUENCE_ID = 1.
<WSRM_PID_SID_MNR>-WSRM_MESSAGE_NUM = 1.
<WSRM_PID_SID_MNR>-WSRM_DIRECTION = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_WSRM_PID_SID_MNR-WSRM_TS, sy-vline,
  WA_WSRM_PID_SID_MNR-WSRM_SPEC_SEQU, sy-vline,
  WA_WSRM_PID_SID_MNR-WSRM_TMP_DELETE, sy-vline,
  WA_WSRM_PID_SID_MNR-WSRM_PRX_CLASS, sy-vline,
  WA_WSRM_PID_SID_MNR-WSRM_LP_NAME, sy-vline,
  WA_WSRM_PID_SID_MNR-WSRM_SDEF, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_WSRM_PID_SID_MNR 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_PID_SID_MNR 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_PID_SID_MNR INTO WA_WSRM_PID_SID_MNR.


*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_PID_SID_MNR_STR, 
WSRM_MANDT TYPE STRING,
WSRM_PERSIST_ID TYPE STRING,
WSRM_SEQUENCE_ID TYPE STRING,
WSRM_MESSAGE_NUM TYPE STRING,
WSRM_DIRECTION TYPE STRING,
WSRM_TS TYPE STRING,
WSRM_SPEC_SEQU TYPE STRING,
WSRM_TMP_DELETE TYPE STRING,
WSRM_PRX_CLASS TYPE STRING,
WSRM_LP_NAME TYPE STRING,
WSRM_SDEF TYPE STRING,
WSRM_BUSINESS_NM TYPE STRING,
WSRM_MSGID TYPE STRING,
WSRM_MSGID_REF TYPE STRING,
WSRM_RETRANS_CNT TYPE STRING,
WSRM_ACK_CNT TYPE STRING,
WSRM_ERROR TYPE STRING,END OF T_EKKO_STR.
DATA: WA_WSRM_PID_SID_MNR_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_PID_SID_MNR_STR-WSRM_MANDT sy-vline 
WA_WSRM_PID_SID_MNR_STR-WSRM_PERSIST_ID sy-vline 
WA_WSRM_PID_SID_MNR_STR-WSRM_SEQUENCE_ID sy-vline 
WA_WSRM_PID_SID_MNR_STR-WSRM_MESSAGE_NUM sy-vline 
WA_WSRM_PID_SID_MNR_STR-WSRM_DIRECTION sy-vline 
WA_WSRM_PID_SID_MNR_STR-WSRM_TS sy-vline 
WA_WSRM_PID_SID_MNR_STR-WSRM_SPEC_SEQU sy-vline 
WA_WSRM_PID_SID_MNR_STR-WSRM_TMP_DELETE sy-vline 
WA_WSRM_PID_SID_MNR_STR-WSRM_PRX_CLASS sy-vline 
WA_WSRM_PID_SID_MNR_STR-WSRM_LP_NAME sy-vline 
WA_WSRM_PID_SID_MNR_STR-WSRM_SDEF sy-vline 
WA_WSRM_PID_SID_MNR_STR-WSRM_BUSINESS_NM sy-vline 
WA_WSRM_PID_SID_MNR_STR-WSRM_MSGID sy-vline 
WA_WSRM_PID_SID_MNR_STR-WSRM_MSGID_REF sy-vline 
WA_WSRM_PID_SID_MNR_STR-WSRM_RETRANS_CNT sy-vline 
WA_WSRM_PID_SID_MNR_STR-WSRM_ACK_CNT sy-vline 
WA_WSRM_PID_SID_MNR_STR-WSRM_ERROR sy-vline      INTO ld_text SEPARATED BY SPACE.

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