ABAP Select data from SAP table RN2AZ_PINS into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP RN2AZ_PINS 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 RN2AZ_PINS. 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 RN2AZ_PINS 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_RN2AZ_PINS TYPE STANDARD TABLE OF RN2AZ_PINS,
      WA_RN2AZ_PINS TYPE RN2AZ_PINS,
      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: <RN2AZ_PINS> TYPE RN2AZ_PINS.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_RN2AZ_PINS.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM RN2AZ_PINS
  INTO TABLE IT_RN2AZ_PINS.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM RN2AZ_PINS
*  INTO TABLE @DATA(IT_RN2AZ_PINS2).
*--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_RN2AZ_PINS INDEX 1 INTO DATA(WA_RN2AZ_PINS2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_RN2AZ_PINS ASSIGNING <RN2AZ_PINS>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<RN2AZ_PINS>-DRUG_ID = 1.
<RN2AZ_PINS>-DRUG_TRADENAME = 1.
<RN2AZ_PINS>-WARN_CO = 1.
<RN2AZ_PINS>-WARN_SU = 1.
<RN2AZ_PINS>-WARN_DO = 1.

ENDLOOP.

LOOP AT IT_RN2AZ_PINS INTO WA_RN2AZ_PINS.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_RN2AZ_PINS-WARN_CB, sy-vline,
  WA_RN2AZ_PINS-WARN_LA, sy-vline,
  WA_RN2AZ_PINS-AGENT_MAIN, sy-vline,
  WA_RN2AZ_PINS-AGENT_HELP, sy-vline,
  WA_RN2AZ_PINS-PROD, sy-vline,
  WA_RN2AZ_PINS-ID, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_RN2AZ_PINS 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_RN2AZ_PINS 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_RN2AZ_PINS INTO WA_RN2AZ_PINS.


*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_RN2AZ_PINS_STR, 
DRUG_ID TYPE STRING,
DRUG_TRADENAME TYPE STRING,
WARN_CO TYPE STRING,
WARN_SU TYPE STRING,
WARN_DO TYPE STRING,
WARN_CB TYPE STRING,
WARN_LA TYPE STRING,
AGENT_MAIN TYPE STRING,
AGENT_HELP TYPE STRING,
PROD TYPE STRING,
ID TYPE STRING,
NAME_L TYPE STRING,
STREET TYPE STRING,
COUNTRY TYPE STRING,
ZIP TYPE STRING,
CITY TYPE STRING,
PHONE TYPE STRING,
FAX TYPE STRING,
PRODEC TYPE STRING,
TEXT_DO TYPE STRING,
TEXT_DE TYPE STRING,
TEXT_CO TYPE STRING,
TEXT_IN TYPE STRING,
TEXT_SI TYPE STRING,
PACK TYPE STRING,
ATC TYPE STRING,
INDI_MAIN TYPE STRING,
INDI_MINOR TYPE STRING,
DRUGCOMP TYPE STRING,END OF T_EKKO_STR.
DATA: WA_RN2AZ_PINS_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_RN2AZ_PINS_STR-DRUG_ID sy-vline 
WA_RN2AZ_PINS_STR-DRUG_TRADENAME sy-vline 
WA_RN2AZ_PINS_STR-WARN_CO sy-vline 
WA_RN2AZ_PINS_STR-WARN_SU sy-vline 
WA_RN2AZ_PINS_STR-WARN_DO sy-vline 
WA_RN2AZ_PINS_STR-WARN_CB sy-vline 
WA_RN2AZ_PINS_STR-WARN_LA sy-vline 
WA_RN2AZ_PINS_STR-AGENT_MAIN sy-vline 
WA_RN2AZ_PINS_STR-AGENT_HELP sy-vline 
WA_RN2AZ_PINS_STR-PROD sy-vline 
WA_RN2AZ_PINS_STR-ID sy-vline 
WA_RN2AZ_PINS_STR-NAME_L sy-vline 
WA_RN2AZ_PINS_STR-STREET sy-vline 
WA_RN2AZ_PINS_STR-COUNTRY sy-vline 
WA_RN2AZ_PINS_STR-ZIP sy-vline 
WA_RN2AZ_PINS_STR-CITY sy-vline 
WA_RN2AZ_PINS_STR-PHONE sy-vline 
WA_RN2AZ_PINS_STR-FAX sy-vline 
WA_RN2AZ_PINS_STR-PRODEC sy-vline 
WA_RN2AZ_PINS_STR-TEXT_DO sy-vline 
WA_RN2AZ_PINS_STR-TEXT_DE sy-vline 
WA_RN2AZ_PINS_STR-TEXT_CO sy-vline 
WA_RN2AZ_PINS_STR-TEXT_IN sy-vline 
WA_RN2AZ_PINS_STR-TEXT_SI sy-vline 
WA_RN2AZ_PINS_STR-PACK sy-vline 
WA_RN2AZ_PINS_STR-ATC sy-vline 
WA_RN2AZ_PINS_STR-INDI_MAIN sy-vline 
WA_RN2AZ_PINS_STR-INDI_MINOR sy-vline 
WA_RN2AZ_PINS_STR-DRUGCOMP sy-vline      INTO ld_text SEPARATED BY SPACE.

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