ABAP Select data from SAP table ISARMALRNPROPOSEDPOSTINGRULE into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM ISARMALRNPROPOSEDPOSTINGRULE
*  INTO TABLE @DATA(IT_ISARMALRNPROPOSEDPOSTINGRULE2).
*--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_ISARMALRNPROPOSEDPOSTINGRULE INDEX 1 INTO DATA(WA_ISARMALRNPROPOSEDPOSTINGRULE2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<ISARMALRNPROPOSEDPOSTINGRULE>-KEY = 1.
<ISARMALRNPROPOSEDPOSTINGRULE>-PARENT_KEY = 1.
<ISARMALRNPROPOSEDPOSTINGRULE>-ROOT_KEY = 1.
<ISARMALRNPROPOSEDPOSTINGRULE>-BANKPOSTINGKEY = 1.
<ISARMALRNPROPOSEDPOSTINGRULE>-COMPANYCODE = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_ISARMALRNPROPOSEDPOSTINGRULE-TRANSACTIONCURRENCY, sy-vline,
  WA_ISARMALRNPROPOSEDPOSTINGRULE-DEBITCREDITCODE, sy-vline,
  WA_ISARMALRNPROPOSEDPOSTINGRULE-PAYMENTEXTERNALTRANSACTYPE, sy-vline,
  WA_ISARMALRNPROPOSEDPOSTINGRULE-PAYMENTMANUALTRANSACTYPE, sy-vline,
  WA_ISARMALRNPROPOSEDPOSTINGRULE-PAYMENTTRANSACTION, sy-vline,
  WA_ISARMALRNPROPOSEDPOSTINGRULE-PAYMENTTRANSACTIONTYPEGROUP, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_ISARMALRNPROPOSEDPOSTINGRULE 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_ISARMALRNPROPOSEDPOSTINGRULE 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_ISARMALRNPROPOSEDPOSTINGRULE INTO WA_ISARMALRNPROPOSEDPOSTINGRULE.


*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 GLACCOUNT
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_ISARMALRNPROPOSEDPOSTINGRULE-GLACCOUNT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ISARMALRNPROPOSEDPOSTINGRULE-GLACCOUNT.
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_ISARMALRNPROPOSEDPOSTINGRULE_STR, 
KEY TYPE STRING,
PARENT_KEY TYPE STRING,
ROOT_KEY TYPE STRING,
BANKPOSTINGKEY TYPE STRING,
COMPANYCODE TYPE STRING,
TRANSACTIONCURRENCY TYPE STRING,
DEBITCREDITCODE TYPE STRING,
PAYMENTEXTERNALTRANSACTYPE TYPE STRING,
PAYMENTMANUALTRANSACTYPE TYPE STRING,
PAYMENTTRANSACTION TYPE STRING,
PAYMENTTRANSACTIONTYPEGROUP TYPE STRING,
GLACCOUNT TYPE STRING,
HOUSEBANK TYPE STRING,
HOUSEBANKACCOUNT TYPE STRING,
BANKSTATEMENTITEMDESCRIPTION1 TYPE STRING,
BANKSTATEMENTITEMDESCRIPTION2 TYPE STRING,
NMBROFFALSEPSTVBKSTMNTITEMS TYPE STRING,
MEMOLINE TYPE STRING,
AFTMEMONMBROFPOSTEDBKSTMNTITMS TYPE STRING,
MALRNPROPOSALCONFIDENCEPERCENT TYPE STRING,
POSTINGRULEISMALRNPROPOSAL TYPE STRING,
NMBROFPOSTEDBKSTATEMENTITEMS TYPE STRING,
MALRNPROPOSEDPOSTGRULEISRJCTD TYPE STRING,
ACTIVEUUID TYPE STRING,
HASACTIVEENTITY TYPE STRING,
DRAFTENTITYCREATIONDATETIME TYPE STRING,
DRAFTENTITYLASTCHANGEDATETIME TYPE STRING,
DRAFTADMINISTRATIVEDATAUUID TYPE STRING,
DRAFTENTITYCONSISTENCYSTATUS TYPE STRING,
DRAFTENTITYOPERATIONCODE TYPE STRING,
ISACTIVEENTITY TYPE STRING,END OF T_EKKO_STR.
DATA: WA_ISARMALRNPROPOSEDPOSTINGRULE_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_ISARMALRNPROPOSEDPOSTINGRULE_STR-KEY sy-vline 
WA_ISARMALRNPROPOSEDPOSTINGRULE_STR-PARENT_KEY sy-vline 
WA_ISARMALRNPROPOSEDPOSTINGRULE_STR-ROOT_KEY sy-vline 
WA_ISARMALRNPROPOSEDPOSTINGRULE_STR-BANKPOSTINGKEY sy-vline 
WA_ISARMALRNPROPOSEDPOSTINGRULE_STR-COMPANYCODE sy-vline 
WA_ISARMALRNPROPOSEDPOSTINGRULE_STR-TRANSACTIONCURRENCY sy-vline 
WA_ISARMALRNPROPOSEDPOSTINGRULE_STR-DEBITCREDITCODE sy-vline 
WA_ISARMALRNPROPOSEDPOSTINGRULE_STR-PAYMENTEXTERNALTRANSACTYPE sy-vline 
WA_ISARMALRNPROPOSEDPOSTINGRULE_STR-PAYMENTMANUALTRANSACTYPE sy-vline 
WA_ISARMALRNPROPOSEDPOSTINGRULE_STR-PAYMENTTRANSACTION sy-vline 
WA_ISARMALRNPROPOSEDPOSTINGRULE_STR-PAYMENTTRANSACTIONTYPEGROUP sy-vline 
WA_ISARMALRNPROPOSEDPOSTINGRULE_STR-GLACCOUNT sy-vline 
WA_ISARMALRNPROPOSEDPOSTINGRULE_STR-HOUSEBANK sy-vline 
WA_ISARMALRNPROPOSEDPOSTINGRULE_STR-HOUSEBANKACCOUNT sy-vline 
WA_ISARMALRNPROPOSEDPOSTINGRULE_STR-BANKSTATEMENTITEMDESCRIPTION1 sy-vline 
WA_ISARMALRNPROPOSEDPOSTINGRULE_STR-BANKSTATEMENTITEMDESCRIPTION2 sy-vline 
WA_ISARMALRNPROPOSEDPOSTINGRULE_STR-NMBROFFALSEPSTVBKSTMNTITEMS sy-vline 
WA_ISARMALRNPROPOSEDPOSTINGRULE_STR-MEMOLINE sy-vline 
WA_ISARMALRNPROPOSEDPOSTINGRULE_STR-AFTMEMONMBROFPOSTEDBKSTMNTITMS sy-vline 
WA_ISARMALRNPROPOSEDPOSTINGRULE_STR-MALRNPROPOSALCONFIDENCEPERCENT sy-vline 
WA_ISARMALRNPROPOSEDPOSTINGRULE_STR-POSTINGRULEISMALRNPROPOSAL sy-vline 
WA_ISARMALRNPROPOSEDPOSTINGRULE_STR-NMBROFPOSTEDBKSTATEMENTITEMS sy-vline 
WA_ISARMALRNPROPOSEDPOSTINGRULE_STR-MALRNPROPOSEDPOSTGRULEISRJCTD sy-vline 
WA_ISARMALRNPROPOSEDPOSTINGRULE_STR-ACTIVEUUID sy-vline 
WA_ISARMALRNPROPOSEDPOSTINGRULE_STR-HASACTIVEENTITY sy-vline 
WA_ISARMALRNPROPOSEDPOSTINGRULE_STR-DRAFTENTITYCREATIONDATETIME sy-vline 
WA_ISARMALRNPROPOSEDPOSTINGRULE_STR-DRAFTENTITYLASTCHANGEDATETIME sy-vline 
WA_ISARMALRNPROPOSEDPOSTINGRULE_STR-DRAFTADMINISTRATIVEDATAUUID sy-vline 
WA_ISARMALRNPROPOSEDPOSTINGRULE_STR-DRAFTENTITYCONSISTENCYSTATUS sy-vline 
WA_ISARMALRNPROPOSEDPOSTINGRULE_STR-DRAFTENTITYOPERATIONCODE sy-vline 
WA_ISARMALRNPROPOSEDPOSTINGRULE_STR-ISACTIVEENTITY sy-vline      INTO ld_text SEPARATED BY SPACE.

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