ABAP Select data from SAP table IMRPREQUESTNOTE into internal table

Get Example source ABAP code based on a different SAP table
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Below is a number of ABAP code snippets to demonstrate how to select data from SAP IMRPREQUESTNOTE 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 IMRPREQUESTNOTE. 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 IMRPREQUESTNOTE 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_IMRPREQUESTNOTE TYPE STANDARD TABLE OF IMRPREQUESTNOTE,
      WA_IMRPREQUESTNOTE TYPE IMRPREQUESTNOTE,
      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: <IMRPREQUESTNOTE> TYPE IMRPREQUESTNOTE.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM IMRPREQUESTNOTE
*  INTO TABLE @DATA(IT_IMRPREQUESTNOTE2).
*--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_IMRPREQUESTNOTE INDEX 1 INTO DATA(WA_IMRPREQUESTNOTE2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<IMRPREQUESTNOTE>-MANDT = 1.
<IMRPREQUESTNOTE>-CHANGEREQUESTUUID = 1.
<IMRPREQUESTNOTE>-MRPPLANT = 1.
<IMRPREQUESTNOTE>-MATERIAL = 1.
<IMRPREQUESTNOTE>-MRPAREA = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_IMRPREQUESTNOTE-CREATIONDATETIME, sy-vline,
  WA_IMRPREQUESTNOTE-CREATEDBYUSER, sy-vline,
  WA_IMRPREQUESTNOTE-GOODSRECEIPTDURATION, sy-vline,
  WA_IMRPREQUESTNOTE-MRPELEMENT, sy-vline,
  WA_IMRPREQUESTNOTE-MRPELEMENTITEM, sy-vline,
  WA_IMRPREQUESTNOTE-MRPELEMENTSCHEDULELINE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_IMRPREQUESTNOTE 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_IMRPREQUESTNOTE 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_IMRPREQUESTNOTE INTO WA_IMRPREQUESTNOTE.


*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 MATERIAL
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_IMRPREQUESTNOTE-MATERIAL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IMRPREQUESTNOTE-MATERIAL.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field SUPPLIER
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_IMRPREQUESTNOTE-SUPPLIER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IMRPREQUESTNOTE-SUPPLIER.
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_IMRPREQUESTNOTE_STR, 
MANDT TYPE STRING,
CHANGEREQUESTUUID TYPE STRING,
MRPPLANT TYPE STRING,
MATERIAL TYPE STRING,
MRPAREA TYPE STRING,
CREATIONDATETIME TYPE STRING,
CREATEDBYUSER TYPE STRING,
GOODSRECEIPTDURATION TYPE STRING,
MRPELEMENT TYPE STRING,
MRPELEMENTITEM TYPE STRING,
MRPELEMENTSCHEDULELINE TYPE STRING,
MRPPLANNINGSEGMENT TYPE STRING,
MRPPLANNINGSEGMENTTYPE TYPE STRING,
CHANGEREQUESTNOTE TYPE STRING,
SOLUTIONREQUESTSTATUS TYPE STRING,
CHANGEREQUESTTYPE TYPE STRING,
CHANGEDDATETIME TYPE STRING,
LASTCHANGEDBYUSER TYPE STRING,
SUPPLIER TYPE STRING,
SUPPLIERPLANT TYPE STRING,
MRPREQUESTSUPPLIERRESPONSE TYPE STRING,
MRPREQUESTDISTRIBUTIONSTATUS TYPE STRING,
MRPREQUESTDISTRIBUTEDDATETIME TYPE STRING,
MRPREQUESTPRIORITY TYPE STRING,
MRPREQUESTREASON TYPE STRING,
MRPREQUESTREJECTION TYPE STRING,
MRPREQUESTCOSTOFCHANGEAMOUNT TYPE STRING,
CURRENCY TYPE STRING,
HASATTACHMENT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_IMRPREQUESTNOTE_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_IMRPREQUESTNOTE_STR-MANDT sy-vline 
WA_IMRPREQUESTNOTE_STR-CHANGEREQUESTUUID sy-vline 
WA_IMRPREQUESTNOTE_STR-MRPPLANT sy-vline 
WA_IMRPREQUESTNOTE_STR-MATERIAL sy-vline 
WA_IMRPREQUESTNOTE_STR-MRPAREA sy-vline 
WA_IMRPREQUESTNOTE_STR-CREATIONDATETIME sy-vline 
WA_IMRPREQUESTNOTE_STR-CREATEDBYUSER sy-vline 
WA_IMRPREQUESTNOTE_STR-GOODSRECEIPTDURATION sy-vline 
WA_IMRPREQUESTNOTE_STR-MRPELEMENT sy-vline 
WA_IMRPREQUESTNOTE_STR-MRPELEMENTITEM sy-vline 
WA_IMRPREQUESTNOTE_STR-MRPELEMENTSCHEDULELINE sy-vline 
WA_IMRPREQUESTNOTE_STR-MRPPLANNINGSEGMENT sy-vline 
WA_IMRPREQUESTNOTE_STR-MRPPLANNINGSEGMENTTYPE sy-vline 
WA_IMRPREQUESTNOTE_STR-CHANGEREQUESTNOTE sy-vline 
WA_IMRPREQUESTNOTE_STR-SOLUTIONREQUESTSTATUS sy-vline 
WA_IMRPREQUESTNOTE_STR-CHANGEREQUESTTYPE sy-vline 
WA_IMRPREQUESTNOTE_STR-CHANGEDDATETIME sy-vline 
WA_IMRPREQUESTNOTE_STR-LASTCHANGEDBYUSER sy-vline 
WA_IMRPREQUESTNOTE_STR-SUPPLIER sy-vline 
WA_IMRPREQUESTNOTE_STR-SUPPLIERPLANT sy-vline 
WA_IMRPREQUESTNOTE_STR-MRPREQUESTSUPPLIERRESPONSE sy-vline 
WA_IMRPREQUESTNOTE_STR-MRPREQUESTDISTRIBUTIONSTATUS sy-vline 
WA_IMRPREQUESTNOTE_STR-MRPREQUESTDISTRIBUTEDDATETIME sy-vline 
WA_IMRPREQUESTNOTE_STR-MRPREQUESTPRIORITY sy-vline 
WA_IMRPREQUESTNOTE_STR-MRPREQUESTREASON sy-vline 
WA_IMRPREQUESTNOTE_STR-MRPREQUESTREJECTION sy-vline 
WA_IMRPREQUESTNOTE_STR-MRPREQUESTCOSTOFCHANGEAMOUNT sy-vline 
WA_IMRPREQUESTNOTE_STR-CURRENCY sy-vline 
WA_IMRPREQUESTNOTE_STR-HASATTACHMENT sy-vline      INTO ld_text SEPARATED BY SPACE.

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