ABAP Select data from SAP table IARUNRULETP into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM IARUNRULETP
*  INTO TABLE @DATA(IT_IARUNRULETP2).
*--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_IARUNRULETP INDEX 1 INTO DATA(WA_IARUNRULETP2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<IARUNRULETP>-MANDT = 1.
<IARUNRULETP>-ARUNRULEUUID = 1.
<IARUNRULETP>-ARUNRULENAME = 1.
<IARUNRULETP>-ARUNRULEDESCRIPTION = 1.
<IARUNRULETP>-ABOPSTOCKSORTRULE = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_IARUNRULETP-ABOPALLOCRELEASEISREQUIRED, sy-vline,
  WA_IARUNRULETP-ABOPSUPPLYSELHORIZONINDAYS, sy-vline,
  WA_IARUNRULETP-ABOPASSIGNMENTPREVIEWISACTIVE, sy-vline,
  WA_IARUNRULETP-ABOPSUPPLYREASSIGNMENTISREQD, sy-vline,
  WA_IARUNRULETP-ARUNSTKOVERWRITEISREQUIRED, sy-vline,
  WA_IARUNRULETP-ARUNPHYSICALSTKISSELECTED, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_IARUNRULETP 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_IARUNRULETP 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_IARUNRULETP INTO WA_IARUNRULETP.


*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_IARUNRULETP_STR, 
MANDT TYPE STRING,
ARUNRULEUUID TYPE STRING,
ARUNRULENAME TYPE STRING,
ARUNRULEDESCRIPTION TYPE STRING,
ABOPSTOCKSORTRULE TYPE STRING,
ABOPALLOCRELEASEISREQUIRED TYPE STRING,
ABOPSUPPLYSELHORIZONINDAYS TYPE STRING,
ABOPASSIGNMENTPREVIEWISACTIVE TYPE STRING,
ABOPSUPPLYREASSIGNMENTISREQD TYPE STRING,
ARUNSTKOVERWRITEISREQUIRED TYPE STRING,
ARUNPHYSICALSTKISSELECTED TYPE STRING,
ARUNPOSTKISSELECTED TYPE STRING,
ARUNASNSTKISSELECTED TYPE STRING,
ARUNPRODNORDSTKISSELECTED TYPE STRING,
ARUNPURREQNSTKISSELECTED TYPE STRING,
ARUNPLNDORDSTKISSELECTED TYPE STRING,
ARUNDEMANDGROUPRULE TYPE STRING,
ARUNRELEASERULE TYPE STRING,
ARUNDISTRIBUTIONSTRATEGY TYPE STRING,
ARUNGROUPINGSTRATEGY TYPE STRING,
ARUNMINASSGMTPERCENT TYPE STRING,
ARUNMAXASSGMTPERCENT TYPE STRING,
ARUNSUPPROTEXECMODE TYPE STRING,
ARUNDEMANDGROUPRULEUUID TYPE STRING,
ARUNDEMANDGROUPRULEISVISIBLE TYPE STRING,
CREATEDBYUSER TYPE STRING,
CREATIONDATETIME TYPE STRING,
CREATIONDATE TYPE STRING,
LASTCHANGEDBYUSER TYPE STRING,
LASTCHANGEDATETIME TYPE STRING,
LASTCHANGEDATE TYPE STRING,
ARUNISRULEUSED TYPE STRING,END OF T_EKKO_STR.
DATA: WA_IARUNRULETP_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_IARUNRULETP_STR-MANDT sy-vline 
WA_IARUNRULETP_STR-ARUNRULEUUID sy-vline 
WA_IARUNRULETP_STR-ARUNRULENAME sy-vline 
WA_IARUNRULETP_STR-ARUNRULEDESCRIPTION sy-vline 
WA_IARUNRULETP_STR-ABOPSTOCKSORTRULE sy-vline 
WA_IARUNRULETP_STR-ABOPALLOCRELEASEISREQUIRED sy-vline 
WA_IARUNRULETP_STR-ABOPSUPPLYSELHORIZONINDAYS sy-vline 
WA_IARUNRULETP_STR-ABOPASSIGNMENTPREVIEWISACTIVE sy-vline 
WA_IARUNRULETP_STR-ABOPSUPPLYREASSIGNMENTISREQD sy-vline 
WA_IARUNRULETP_STR-ARUNSTKOVERWRITEISREQUIRED sy-vline 
WA_IARUNRULETP_STR-ARUNPHYSICALSTKISSELECTED sy-vline 
WA_IARUNRULETP_STR-ARUNPOSTKISSELECTED sy-vline 
WA_IARUNRULETP_STR-ARUNASNSTKISSELECTED sy-vline 
WA_IARUNRULETP_STR-ARUNPRODNORDSTKISSELECTED sy-vline 
WA_IARUNRULETP_STR-ARUNPURREQNSTKISSELECTED sy-vline 
WA_IARUNRULETP_STR-ARUNPLNDORDSTKISSELECTED sy-vline 
WA_IARUNRULETP_STR-ARUNDEMANDGROUPRULE sy-vline 
WA_IARUNRULETP_STR-ARUNRELEASERULE sy-vline 
WA_IARUNRULETP_STR-ARUNDISTRIBUTIONSTRATEGY sy-vline 
WA_IARUNRULETP_STR-ARUNGROUPINGSTRATEGY sy-vline 
WA_IARUNRULETP_STR-ARUNMINASSGMTPERCENT sy-vline 
WA_IARUNRULETP_STR-ARUNMAXASSGMTPERCENT sy-vline 
WA_IARUNRULETP_STR-ARUNSUPPROTEXECMODE sy-vline 
WA_IARUNRULETP_STR-ARUNDEMANDGROUPRULEUUID sy-vline 
WA_IARUNRULETP_STR-ARUNDEMANDGROUPRULEISVISIBLE sy-vline 
WA_IARUNRULETP_STR-CREATEDBYUSER sy-vline 
WA_IARUNRULETP_STR-CREATIONDATETIME sy-vline 
WA_IARUNRULETP_STR-CREATIONDATE sy-vline 
WA_IARUNRULETP_STR-LASTCHANGEDBYUSER sy-vline 
WA_IARUNRULETP_STR-LASTCHANGEDATETIME sy-vline 
WA_IARUNRULETP_STR-LASTCHANGEDATE sy-vline 
WA_IARUNRULETP_STR-ARUNISRULEUSED sy-vline      INTO ld_text SEPARATED BY SPACE.

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