ABAP Select data from SAP table IRETMSALESRULE into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM IRETMSALESRULE
*  INTO TABLE @DATA(IT_IRETMSALESRULE2).
*--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_IRETMSALESRULE INDEX 1 INTO DATA(WA_IRETMSALESRULE2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<IRETMSALESRULE>-MANDT = 1.
<IRETMSALESRULE>-INTERNALREALESTATENUMBER = 1.
<IRETMSALESRULE>-RETERMTYPE = 1.
<IRETMSALESRULE>-RETERMNUMBER = 1.
<IRETMSALESRULE>-VALIDITYSTARTDATE = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_IRETMSALESRULE-VALIDITYENDDATE, sy-vline,
  WA_IRETMSALESRULE-REALESTATEOBJECTTYPE, sy-vline,
  WA_IRETMSALESRULE-RESTATUSOBJECT, sy-vline,
  WA_IRETMSALESRULE-RETERMNAME, sy-vline,
  WA_IRETMSALESRULE-RESALESRULE, sy-vline,
  WA_IRETMSALESRULE-REISPEAKSALESRULE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_IRETMSALESRULE 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_IRETMSALESRULE 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_IRETMSALESRULE INTO WA_IRETMSALESRULE.


*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 RETERMNUMBER
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_IRETMSALESRULE-RETERMNUMBER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IRETMSALESRULE-RETERMNUMBER.
WRITE:/ 'New Value:', ld_input.

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

*Conversion exit CUNIT, internal->external for field RESALESUNIT
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_IRETMSALESRULE-RESALESUNIT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IRETMSALESRULE-RESALESUNIT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field RESALESUNITGRADING
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_IRETMSALESRULE-RESALESUNITGRADING
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IRETMSALESRULE-RESALESUNITGRADING.
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_IRETMSALESRULE_STR, 
MANDT TYPE STRING,
INTERNALREALESTATENUMBER TYPE STRING,
RETERMTYPE TYPE STRING,
RETERMNUMBER TYPE STRING,
VALIDITYSTARTDATE TYPE STRING,
VALIDITYENDDATE TYPE STRING,
REALESTATEOBJECTTYPE TYPE STRING,
RESTATUSOBJECT TYPE STRING,
RETERMNAME TYPE STRING,
RESALESRULE TYPE STRING,
REISPEAKSALESRULE TYPE STRING,
RESALESRULEISUSINGPERIODICPOST TYPE STRING,
RESALESREPORTINGTERMNUMBER TYPE STRING,
RESALESCURRENCY TYPE STRING,
RESALESUNIT TYPE STRING,
RESALESAMOUNTTYPE TYPE STRING,
RESALESQUANTITYAMOUNTTYPE TYPE STRING,
REMINSALESAMOUNT TYPE STRING,
REMINSALESRPTGINTERVALAMOUNT TYPE STRING,
REMINSALESQUANTITY TYPE STRING,
REMINSALESRPTGINTERVALQUANTITY TYPE STRING,
REMAXSALESAMOUNT TYPE STRING,
REMAXSALESQUANTITY TYPE STRING,
RESALESUNITGRADING TYPE STRING,
RESALESITEMNUMBERGRADING TYPE STRING,
REMINSALESGRADINGAMOUNT TYPE STRING,
REMAXSALESGRADINGAMOUNT TYPE STRING,
REMINSALESGRADINGQUANTITY TYPE STRING,
REMAXSALESGRADINGQUANTITY TYPE STRING,
REPERUNITGRADINGPRICE TYPE STRING,
RESALESMINRENTGRADINGAMOUNT TYPE STRING,
RESALESRENTGRADINGPERCENT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_IRETMSALESRULE_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_IRETMSALESRULE_STR-MANDT sy-vline 
WA_IRETMSALESRULE_STR-INTERNALREALESTATENUMBER sy-vline 
WA_IRETMSALESRULE_STR-RETERMTYPE sy-vline 
WA_IRETMSALESRULE_STR-RETERMNUMBER sy-vline 
WA_IRETMSALESRULE_STR-VALIDITYSTARTDATE sy-vline 
WA_IRETMSALESRULE_STR-VALIDITYENDDATE sy-vline 
WA_IRETMSALESRULE_STR-REALESTATEOBJECTTYPE sy-vline 
WA_IRETMSALESRULE_STR-RESTATUSOBJECT sy-vline 
WA_IRETMSALESRULE_STR-RETERMNAME sy-vline 
WA_IRETMSALESRULE_STR-RESALESRULE sy-vline 
WA_IRETMSALESRULE_STR-REISPEAKSALESRULE sy-vline 
WA_IRETMSALESRULE_STR-RESALESRULEISUSINGPERIODICPOST sy-vline 
WA_IRETMSALESRULE_STR-RESALESREPORTINGTERMNUMBER sy-vline 
WA_IRETMSALESRULE_STR-RESALESCURRENCY sy-vline 
WA_IRETMSALESRULE_STR-RESALESUNIT sy-vline 
WA_IRETMSALESRULE_STR-RESALESAMOUNTTYPE sy-vline 
WA_IRETMSALESRULE_STR-RESALESQUANTITYAMOUNTTYPE sy-vline 
WA_IRETMSALESRULE_STR-REMINSALESAMOUNT sy-vline 
WA_IRETMSALESRULE_STR-REMINSALESRPTGINTERVALAMOUNT sy-vline 
WA_IRETMSALESRULE_STR-REMINSALESQUANTITY sy-vline 
WA_IRETMSALESRULE_STR-REMINSALESRPTGINTERVALQUANTITY sy-vline 
WA_IRETMSALESRULE_STR-REMAXSALESAMOUNT sy-vline 
WA_IRETMSALESRULE_STR-REMAXSALESQUANTITY sy-vline 
WA_IRETMSALESRULE_STR-RESALESUNITGRADING sy-vline 
WA_IRETMSALESRULE_STR-RESALESITEMNUMBERGRADING sy-vline 
WA_IRETMSALESRULE_STR-REMINSALESGRADINGAMOUNT sy-vline 
WA_IRETMSALESRULE_STR-REMAXSALESGRADINGAMOUNT sy-vline 
WA_IRETMSALESRULE_STR-REMINSALESGRADINGQUANTITY sy-vline 
WA_IRETMSALESRULE_STR-REMAXSALESGRADINGQUANTITY sy-vline 
WA_IRETMSALESRULE_STR-REPERUNITGRADINGPRICE sy-vline 
WA_IRETMSALESRULE_STR-RESALESMINRENTGRADINGAMOUNT sy-vline 
WA_IRETMSALESRULE_STR-RESALESRENTGRADINGPERCENT sy-vline      INTO ld_text SEPARATED BY SPACE.

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