ABAP Select data from SAP table FAR_PSTRL_D_COND into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM FAR_PSTRL_D_COND
*  INTO TABLE @DATA(IT_FAR_PSTRL_D_COND2).
*--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_FAR_PSTRL_D_COND INDEX 1 INTO DATA(WA_FAR_PSTRL_D_COND2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<FAR_PSTRL_D_COND>-CLIENT = 1.
<FAR_PSTRL_D_COND>-POSTINGRULECONDITIONUUID = 1.
<FAR_PSTRL_D_COND>-POSTINGRULEUUID = 1.
<FAR_PSTRL_D_COND>-POSTINGRULECONDITIONFIELD = 1.
<FAR_PSTRL_D_COND>-POSTGRULECNDNRANGESIGN = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_FAR_PSTRL_D_COND-POSTGRULECNDNRANGEOPTION, sy-vline,
  WA_FAR_PSTRL_D_COND-POSTGRULECNDNRANGELOW, sy-vline,
  WA_FAR_PSTRL_D_COND-POSTGRULECNDNRANGEHIGH, sy-vline,
ENDLOOP.
   
*Add any further fields from structure WA_FAR_PSTRL_D_COND 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_FAR_PSTRL_D_COND 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_FAR_PSTRL_D_COND INTO WA_FAR_PSTRL_D_COND.


*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_FAR_PSTRL_D_COND_STR, 
CLIENT TYPE STRING,
POSTINGRULECONDITIONUUID TYPE STRING,
POSTINGRULEUUID TYPE STRING,
POSTINGRULECONDITIONFIELD TYPE STRING,
POSTGRULECNDNRANGESIGN TYPE STRING,
POSTGRULECNDNRANGEOPTION TYPE STRING,
POSTGRULECNDNRANGELOW TYPE STRING,
POSTGRULECNDNRANGEHIGH TYPE STRING,END OF T_EKKO_STR.
DATA: WA_FAR_PSTRL_D_COND_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_FAR_PSTRL_D_COND_STR-CLIENT sy-vline 
WA_FAR_PSTRL_D_COND_STR-POSTINGRULECONDITIONUUID sy-vline 
WA_FAR_PSTRL_D_COND_STR-POSTINGRULEUUID sy-vline 
WA_FAR_PSTRL_D_COND_STR-POSTINGRULECONDITIONFIELD sy-vline 
WA_FAR_PSTRL_D_COND_STR-POSTGRULECNDNRANGESIGN sy-vline 
WA_FAR_PSTRL_D_COND_STR-POSTGRULECNDNRANGEOPTION sy-vline 
WA_FAR_PSTRL_D_COND_STR-POSTGRULECNDNRANGELOW sy-vline 
WA_FAR_PSTRL_D_COND_STR-POSTGRULECNDNRANGEHIGH sy-vline      INTO ld_text SEPARATED BY SPACE.

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