ABAP Select data from SAP table IMSTRRCP into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM IMSTRRCP
*  INTO TABLE @DATA(IT_IMSTRRCP2).
*--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_IMSTRRCP INDEX 1 INTO DATA(WA_IMSTRRCP2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<IMSTRRCP>-MANDT = 1.
<IMSTRRCP>-BILLOFOPERATIONSTYPE = 1.
<IMSTRRCP>-BILLOFOPERATIONSGROUP = 1.
<IMSTRRCP>-BILLOFOPERATIONSVARIANT = 1.
<IMSTRRCP>-BILLOFOPERATIONSVERSIONTYPE = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_IMSTRRCP-BILLOFOPERATIONSSUBTYPE, sy-vline,
  WA_IMSTRRCP-LASTUSAGEDATE, sy-vline,
  WA_IMSTRRCP-NUMBEROFUSAGES, sy-vline,
  WA_IMSTRRCP-HASCHANGENUMBER, sy-vline,
  WA_IMSTRRCP-HASPARAMETEREFFECTIVITY, sy-vline,
  WA_IMSTRRCP-LASTCHANGEDATE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_IMSTRRCP 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_IMSTRRCP 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_IMSTRRCP INTO WA_IMSTRRCP.


*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 ALPHA, internal->external for field BILLOFOPERATIONSGROUP
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_IMSTRRCP-BILLOFOPERATIONSGROUP
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IMSTRRCP-BILLOFOPERATIONSGROUP.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field BILLOFOPERATIONSVARIANT
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_IMSTRRCP-BILLOFOPERATIONSVARIANT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IMSTRRCP-BILLOFOPERATIONSVARIANT.
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_IMSTRRCP_STR, 
MANDT TYPE STRING,
BILLOFOPERATIONSTYPE TYPE STRING,
BILLOFOPERATIONSGROUP TYPE STRING,
BILLOFOPERATIONSVARIANT TYPE STRING,
BILLOFOPERATIONSVERSIONTYPE TYPE STRING,
BILLOFOPERATIONSSUBTYPE TYPE STRING,
LASTUSAGEDATE TYPE STRING,
NUMBEROFUSAGES TYPE STRING,
HASCHANGENUMBER TYPE STRING,
HASPARAMETEREFFECTIVITY TYPE STRING,
LASTCHANGEDATE TYPE STRING,
LASTCHANGETIME TYPE STRING,
LASTCHANGEDBYUSER TYPE STRING,
ISMARKEDFORDELETION TYPE STRING,
ROUTINGISREWORKROUTING TYPE STRING,
PRODNPROCGISFLEXIBLE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_IMSTRRCP_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_IMSTRRCP_STR-MANDT sy-vline 
WA_IMSTRRCP_STR-BILLOFOPERATIONSTYPE sy-vline 
WA_IMSTRRCP_STR-BILLOFOPERATIONSGROUP sy-vline 
WA_IMSTRRCP_STR-BILLOFOPERATIONSVARIANT sy-vline 
WA_IMSTRRCP_STR-BILLOFOPERATIONSVERSIONTYPE sy-vline 
WA_IMSTRRCP_STR-BILLOFOPERATIONSSUBTYPE sy-vline 
WA_IMSTRRCP_STR-LASTUSAGEDATE sy-vline 
WA_IMSTRRCP_STR-NUMBEROFUSAGES sy-vline 
WA_IMSTRRCP_STR-HASCHANGENUMBER sy-vline 
WA_IMSTRRCP_STR-HASPARAMETEREFFECTIVITY sy-vline 
WA_IMSTRRCP_STR-LASTCHANGEDATE sy-vline 
WA_IMSTRRCP_STR-LASTCHANGETIME sy-vline 
WA_IMSTRRCP_STR-LASTCHANGEDBYUSER sy-vline 
WA_IMSTRRCP_STR-ISMARKEDFORDELETION sy-vline 
WA_IMSTRRCP_STR-ROUTINGISREWORKROUTING sy-vline 
WA_IMSTRRCP_STR-PRODNPROCGISFLEXIBLE sy-vline      INTO ld_text SEPARATED BY SPACE.

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