ABAP Select data from SAP table /PF1/STR_RP_RULE_DB into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP /PF1/STR_RP_RULE_DB 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 /PF1/STR_RP_RULE_DB. 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 /PF1/STR_RP_RULE_DB 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_/PF1/STR_RP_RULE_DB TYPE STANDARD TABLE OF /PF1/STR_RP_RULE_DB,
      WA_/PF1/STR_RP_RULE_DB TYPE /PF1/STR_RP_RULE_DB,
      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: </PF1/STR_RP_RULE_DB> TYPE /PF1/STR_RP_RULE_DB.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_/PF1/STR_RP_RULE_DB.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM /PF1/STR_RP_RULE_DB
  INTO TABLE IT_/PF1/STR_RP_RULE_DB.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM /PF1/STR_RP_RULE_DB
*  INTO TABLE @DATA(IT_/PF1/STR_RP_RULE_DB2).
*--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_/PF1/STR_RP_RULE_DB INDEX 1 INTO DATA(WA_/PF1/STR_RP_RULE_DB2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_/PF1/STR_RP_RULE_DB ASSIGNING </PF1/STR_RP_RULE_DB>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
</PF1/STR_RP_RULE_DB>-CLIENT = 1.
</PF1/STR_RP_RULE_DB>-CLEARING_AREA = 1.
</PF1/STR_RP_RULE_DB>-RELEASE_STATUS = 1.
</PF1/STR_RP_RULE_DB>-COMPONENT_ID = 1.
</PF1/STR_RP_RULE_DB>-RULESET_ID = 1.

ENDLOOP.

LOOP AT IT_/PF1/STR_RP_RULE_DB INTO WA_/PF1/STR_RP_RULE_DB.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_/PF1/STR_RP_RULE_DB-RULE_ID, sy-vline,
  WA_/PF1/STR_RP_RULE_DB-SEQUENCE, sy-vline,
  WA_/PF1/STR_RP_RULE_DB-STATUS, sy-vline,
  WA_/PF1/STR_RP_RULE_DB-RESULT_ID, sy-vline,
  WA_/PF1/STR_RP_RULE_DB-FLG_NOTE, sy-vline,
  WA_/PF1/STR_RP_RULE_DB-DESCRIPTION, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_/PF1/STR_RP_RULE_DB 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_/PF1/STR_RP_RULE_DB 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_/PF1/STR_RP_RULE_DB INTO WA_/PF1/STR_RP_RULE_DB.


*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_/PF1/STR_RP_RULE_DB_STR, 
CLIENT TYPE STRING,
CLEARING_AREA TYPE STRING,
RELEASE_STATUS TYPE STRING,
COMPONENT_ID TYPE STRING,
RULESET_ID TYPE STRING,
RULE_ID TYPE STRING,
SEQUENCE TYPE STRING,
STATUS TYPE STRING,
RESULT_ID TYPE STRING,
FLG_NOTE TYPE STRING,
DESCRIPTION TYPE STRING,
RELEASE_STATUSCD TYPE STRING,
CRUSR TYPE STRING,
CRDAT TYPE STRING,
CRTIM TYPE STRING,
CHUSR TYPE STRING,
CHDAT TYPE STRING,
CHTIM TYPE STRING,
RLUSR TYPE STRING,
RLDAT TYPE STRING,
RLTIM TYPE STRING,
ARCHIVE_STATUS TYPE STRING,
ARCHIVE_FLUD TYPE STRING,END OF T_EKKO_STR.
DATA: WA_/PF1/STR_RP_RULE_DB_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_/PF1/STR_RP_RULE_DB_STR-CLIENT sy-vline 
WA_/PF1/STR_RP_RULE_DB_STR-CLEARING_AREA sy-vline 
WA_/PF1/STR_RP_RULE_DB_STR-RELEASE_STATUS sy-vline 
WA_/PF1/STR_RP_RULE_DB_STR-COMPONENT_ID sy-vline 
WA_/PF1/STR_RP_RULE_DB_STR-RULESET_ID sy-vline 
WA_/PF1/STR_RP_RULE_DB_STR-RULE_ID sy-vline 
WA_/PF1/STR_RP_RULE_DB_STR-SEQUENCE sy-vline 
WA_/PF1/STR_RP_RULE_DB_STR-STATUS sy-vline 
WA_/PF1/STR_RP_RULE_DB_STR-RESULT_ID sy-vline 
WA_/PF1/STR_RP_RULE_DB_STR-FLG_NOTE sy-vline 
WA_/PF1/STR_RP_RULE_DB_STR-DESCRIPTION sy-vline 
WA_/PF1/STR_RP_RULE_DB_STR-RELEASE_STATUSCD sy-vline 
WA_/PF1/STR_RP_RULE_DB_STR-CRUSR sy-vline 
WA_/PF1/STR_RP_RULE_DB_STR-CRDAT sy-vline 
WA_/PF1/STR_RP_RULE_DB_STR-CRTIM sy-vline 
WA_/PF1/STR_RP_RULE_DB_STR-CHUSR sy-vline 
WA_/PF1/STR_RP_RULE_DB_STR-CHDAT sy-vline 
WA_/PF1/STR_RP_RULE_DB_STR-CHTIM sy-vline 
WA_/PF1/STR_RP_RULE_DB_STR-RLUSR sy-vline 
WA_/PF1/STR_RP_RULE_DB_STR-RLDAT sy-vline 
WA_/PF1/STR_RP_RULE_DB_STR-RLTIM sy-vline 
WA_/PF1/STR_RP_RULE_DB_STR-ARCHIVE_STATUS sy-vline 
WA_/PF1/STR_RP_RULE_DB_STR-ARCHIVE_FLUD sy-vline      INTO ld_text SEPARATED BY SPACE.

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